If your design calls for a bottom rail, make sure it is at least 2x4. When shopping for deck material, ask your local lumber dealer about this type of treated wood. Then drive a wide wooden shim between the rows to properly space the bowed board. from board edge. Ledger. 4). With your ledger in place, you can use it as a height reference for the other beam. You can use them to join the joists to the ledger. 7 shows proper nailing technique and several types of decking. C. I used two 2x8s rather than one in Fig. (Concrete dealers limit their offload time and charge beyond that limit.). All other material should be at least 2x2 or stronger. As you might expect, longer joists put more weight on a beam, so you have to make it bigger and stronger. Bear this in mind when checking the levels throughout the build. By clicking GO!, you acknowledge that you have read Trex's Privacy Policy. Review your plan and draw up a material list. Sink foundation holes using a posthole digger or an 8-in. Plumb your posts, keeping them straight and then install the landing framing. Widen and flatten the bottoms to get a wide support base. Similarly, some apps can help you better anticipate just how much you’ll need to set aside to build your deck. The triangle created by the beam, post, and brace keeps the structure rigid. deep groove with a corundum (not carbide) blade on your circular saw. Before adding the deck boards, set the posts for your guardrail. or, even better, a .60-lb. Once your beams or rim joists have been placed, add joist hangers to the inner sections. Beams made from stronger wood can often be smaller. However, starting with a good foundation will prepare your deck for years of hard use. Other designs, like the one in Fig. A wood preservative is a chemical that’s toxic to wood—destroying fungus, bacteria and insects. Check the containers to make sure the stain and repellent are compatible. When your post spacing reaches about 10 ft., the beams get big and heavy, sometimes four 2x8s, three 2x10s or larger. If they find enough moisture, the spores that settle on your freshly built deck will root and grow, slowly dissolving the wood fiber. Everyone knows how pleasant a deck can be, but as the builder, you get an additional reward — the pleasure of knowing you’ve made a first-class addition to your home. Second, the concrete foundation widens toward the top, inviting frost to catch its sides and heave it upward. An above-ground deck works especially well for those living in elevated homes that are closer to sea level or in a flood zone, as well as for homes that have a backyard with a steep incline. Add your measurements to a more detailed sketch. Over time these repeated movements can cause boards to crack and split. On occasion you may need to bolt the ledger to a concrete foundation (Fig. Basic steps for building a raised deck (the TL;DR version) Foundation. You can review images online to choose a design and talk with specialists at a building supply store for input. Your budget will also play a role in the type of materials to choose, the size of your deck, and what types of add-ons you may want to consider. Just insert 3/8-in. 1, and some alternative styles in Fig. Do they feel solidly connected to the framework when you push on them? Paint is the best repellent because it forms a protective skin over the wood. By the end you’ll be able to design, plan and construct your own deck like a pro. Except for very low decks, it’s a good idea to stiffen your posts and beams with diagonal braces to prevent deck swaying (Fig. Snap a chalk line and cut the 1/4-in. Also reject wood with chemical residue on its surface; you should see what looks like an even coat of green or brown stain. The extra effort usually isn’t worth the trouble. No matter which option you choose, you’ll need to pour a concrete pad for the base of the stairs. No. Once installed, it acts as a guide for a deck frame that’s level and square. The maximum permitted opening in the guardrail varies from 4 in. You will sense it every time you step out on your deck listen. Attach the post anchors to the deck footings using a hammer drill designed for heavy-duty work. To correctly size a beam, consider these three factors: For most decks, two 2x10s nailed together will be strong enough if you support them with posts every 6 ft. Once you gather your materials, it will be time to start the building process. section of concrete, called the “footing,” must rest on undisturbed soil (disturbed soil compresses too easily), have a flat bottom to transfer weight evenly, and be completely below your local frost line. In addition, nails loosen and pop up. Deck surfaces exposed to direct sun and rain take a terrific beating. The extra strength not only adds a greater safety margin and longevity, it also makes the deck feel more solid. For the pictured project, the pieces are spaced ¼-inch apart. This list includes everything you will need to build a raised deck. As you near the end, you can adjust the deck spacing so you end up with a … Again, always confirm your joist size with your building inspector. Answer the following questions: Bolt rail posts to joists. Notice that the bottom 6-in. You can buy a stair package for your raised deck at most home supply stores, or you can build your own deck stairs following tutorials. The surface fungus that causes the color change is a mold that really does no significant damage. Gaps appear at joints. bolts 3-1/2 in. It’s also a great project to take on if you’re wanting to put your DIY skills to the test. A named steel cap (A) is strongest. Each free deck plan will tell you which materials, supplies, and tools you'll need to collect as well as cutting instructions. First, the metal connector is a good one, but it won’t last long because water can easily puddle around it and rust it. Remember, you can always add another beam to support the joists mid-span if you need to. Every time water soaks them, the wood swells. In reality, these beams are simply too heavy to handle. Attach a 2-by-8-inch ledger board perpendicular to the house. Burning the scraps can release the toxic chemical as fumes. Is the site directly accessible to the truck? to 6 in. Predrill nail holes near board ends to avoid splitting, Make these slightly smaller than the diameter of the nail passing through them. One big advantage of bolts over nails here is that you can easily retighten them should they loosen. This wood costs 10 to 20 percent more but often comes with a lifetime guarantee. If your house was built since the mid 1990s, there is a chance that the floor system is constructed with a MWJ (Manufactured Wood Joist) floor system. Because they form a thinner coat than paint, sealers and stains usually last only a few years. Depending on rainfall and moisture conditions in your region, serious signs of decay can begin within 10 years. Sometimes referred to as an elevated deck, a raised deck is a great option for entertaining outdoors. In such cases use machine bolts, because you can steady their heads with a wrench. But they won‘t feel safe. Put scraps in the trash instead. They, like the wood posts themselves, should be set at least 6 in. Nail the first board alongside, but not touching, the house, driving two 16d galvanized nails at each joist. When the lumber comes, you're ready to go. in some regions) cannot pass through any opening (Fig. Fortunately, the path from the deck of your imagination to a real one isn’t hard, because there’s nothing complicated about building a quality deck. You can choose from either of the two beam sizes shown there, either three 2x8s or two 2x10s nailed together. Typically, projects take longer than you first imagine, but the quality you achieve is worth it. Budget factors to consider include how big you want your deck to be and the type of lumber you’ll use. Don’t skimp in your rail design. One of the pleasures of building a good, solid deck is believing that it’ll last forever. And it needs to be accurate. Deck Board Spacer: It’s easy to space deck boards evenly. Now that you’ve laid your foundation (literally), here’s where your above-ground deck really begins to come together and resemble the deck of you’ve dreamed of. Count every board and bolt. 1 and 2 show five examples. 3 from two 2x10s spiked together with 16d galvanized nails. And because the deck is only a one step high, no railing was required. The staff at your local home supply store can share recommendations to help you stay within your allotted budget. Posts, beams, ledgers, and joists support the deck’s weight. If building a low-level deck that is connected to posts set within the framing, attach the rim joist to the posts using galvanized 10D common nails, or 3-inch galvanized screws. Some decks can't be attached directly to the house using ledger boards because of a house cantilever or a brick veneer. It’s time to lay the decking. Normally, if you need 1 cubic yard or more, it’s easier and faster to buy ready-mixed concrete, and invite (or bribe!) Undersized beams also make a deck feel soft underfoot and bounce rather than remaining rigid. Reinforce with wood blocks cut from the same size wood material as the joists (called blocking) between the joists to prevent the joists from twisting. How to Jack Up a Deck. Building inspectors have found that many homeowners, designing by “rules of thumb,” make beams too small. You can dig the footings by hand or rent a power auger to make the process easier. Next, you’ll dig holes for the footings, assemble the footings and pier forms, and raise posts over the piers. If you’re planning to cap your posts, be sure to allow extra room for the caps. Building a Simple Deck. Use a level to measure and trim the tops of the posts to ensure that they’re even to create an attractive, symmetrical look to your deck. Then they switch to cedar or redwood for the highly visible decking and railing. A water repellent simply keeps the water out.). Building the deck close to the ground helps keeps the “wobble” out of the completed structure. 2A that make this detail unacceptable: Should you mix your own concrete or buy ready-mixed from a truck? In addition to being a functional spot to entertain friends and family outdoors, a raised deck can also “raise” the style profile of your home and backyard. They also require wider posts, 4x6s or 4x8s, to rest on. Did you bolt your rail posts to the joists or beam? power auger if you have to dig a lot of them. Terms of use, Budget - Determines Deck Size and Materials, Selecting The Best Composite Decking Color For Your Home. Keeping an eye on that structure, you will understand the entire deck-building process. Use a second 2-by-4 on the opposite side. Preservative chemicals often won’t penetrate heartwood, so it can quickly rot. Place steel connectors - the strongest way to attach posts to concrete. Even in this example, you could reduce the beam size from two 2x10s in Fig. A detached deck is a low deck that is not attached to the side of the house. Plan the deck to ensure the fall of the frame is 1:100 and running away from the house; this will aid water run-off and will help to stop the deck from becoming slippery. above that point (you may have to cut it with your power saw) so you can screw the ledger tightly against the sheathing and house frame (Fig. Predrill the screw holes and use longer bolts if necessary. These free deck plans will help you build the deck of your dreams. some neighbors to help you dump it quickly. Finally, give yourself plenty of time to complete the dock. They’ll hold decay at bay until water slowly leaches these chemicals out of the wood. A good footing is wider at the bottom and narrower at the top to avoid frost heaves, and extends 6 in. higher so water will run off. Gather your decking boards and start laying them (temporarily) in the middle of the deck. Four footings are common for a typical deck. First, nail on the joists. Some of the items are necessary for more than one stage of the project, so do check the steps thoroughly for the tools and equipment needed. processors of top-quality treated wood impregnate some of their wood products with a water repellent so they absorb less moisture, swell less, and therefore crack and warp less. Cut two 2-by-8-inch boards to span the length of the deck and attach them to the first 2-by-8. ), a 2x6 spans 8 ft. a 2x8 spans 10 ft., and a 2x10 spans 12 ft. Most treated wood doesn’t contain a water repellent, but you can brush one on to accomplish the same thing. We would advise that you plan your deck to fit only whole deck boards, to avoid having to cut a deck board lengthways to fill a gap. So if you aren’t fully confident, look at several deck-building books. The beauty of a ground level deck lies within its simplicity. Nail the ends of bowed boards first, forcing the bow against the previous row. The calculations are important for the stairs and stringers for them to be within code regulations. make the finished deck 1/2 in. A well-built deck: an attractive, permanent addition to your home. Go ahead and discuss your ideas in detail. 9 below). You can find helpful staff at your local building supply store who will help you make sure you have everything you need, including the right size lumber, concrete for footings, and other items. The result is a shabby deck. In these kinds of page, we likewise have variety of images available. It sits atop the 4x4 posts. You can even chat with neighbors who have built similar structures and understand … Use a long level and a helper to ensure the rim joist is level. Once the concrete hardens, you’re ready to build. Usually 4x4 posts spaced every 6 in. Inspect the boards to make sure they’re dry. The foundation securely anchors the deck posts and rests on solid ground below the frost line. Before you break ground and start laying the foundation for a deck you’ll enjoy for years to come, weigh the various factors involved in building your deck and how it can impact your options. All work well. Use 10d galvanized casing nails on the edges of the 2x4 and 2-in. Pull out a pad of paper and a pencil, and sketch the deck you'd like to add to your home. Avoid Saturdays, when they're likely to be most busy. This is a horizontal piece of lumber that attaches to an existing wall of your home to provide deck stability. 5B and 5C are okay, but will weaken sooner. In general, your deck will feel firmer if you space your posts no more than 6 in. At each step you’ll learn deck-building fundamentals and several alternative techniques you can use to make it first class. After finding the ledger height, remove the siding to about 1 in. Then slip aluminum flashing up under the siding and against the sheathing later you’ll bend the flashing over the top of the ledger to keep water from collecting against the house and causing rot. It acts as an extension of your indoor space, taking the excitement or relaxation right outside where you can enjoy the fresh air and scenic views. And year after year it serves you well, virtually maintenance-free, a good investment for your home. Fungus quickly takes root in moist areas. Where they butt directly into a beam or ledger, fasten them with metal joist hangers, and where they rest on top of the beam, toenail them with three 16d galvanized nails (Fig. You’ve already put in a lot of hard work on your deck, so it’s important to be sure it looks its best to give you a return on your investment! Design your railing so it’s at least 36 in. You don't have to be an artist. The preservative permanently bonds with the wood only when it dries. C, simply because they make the deck feel a bit stiffer underfoot and fit better atop 4x4 posts. Lowe's Sponsored this video where I show how easy it can be to build a deck. If you’re going the DIY route, several free apps can help you generate blueprints to take to your building office when applying for permits. https://www.youtube.com/watch?v=noHSYBauPzk | Easy DIY tips for small home deck building. (If you’re working more than a few feet off the ground, lifting a heavy beam can be dangerous. Print Version. apart. Finally. It lasts the longest too. 3). You can review images online to choose a design and talk with specialists at a building supply store for input. You can even chat with neighbors who have built similar structures and understand some of the limitations of the particular terrain or geography within your neighborhood. A “beam” is usually the biggest chunk of wood that lies horizontally like a spine under or at the ends of the rib-like spacing row. Plans are necessary in order to get a permit, and most municipalities will want details, such as the type of wood you plan to use, the height of the rails and how you plan to place the required rails on stairs. Pour concrete. The beam, here consisting of two 2x10s, must be strong enough to support the weight of the deck, plus the weight of all the activity that takes place in it. provide enough support when they rest on a good base. Now just follow Tom’s tips and build your own backyard oasis. Start gathering inspiration by looking at websites or Pinterest boards to see what may work for your personal aesthetic and backyard layout. In order to be compliant with building codes and safety regulations, stairs need guardrails with handrails. by Richard May 5, 2019. written by Richard May 5, 2019. The connections in Fig. A raised decking doesn’t have to be attached to your house; it can work well as a feature around a tree, in a suntrap, or to elevate a hot tub at the bottom of your garden. Most contain a section on layout; or ask someone who understands layout principles to help you check your work. Explain your plan, listen for new ideas and techniques, and go out into the yard and chock the wood. In these cases, it is very important to consult with a building inspector, engineer or architect to understand how to correctly attach a ledger board to the house … Install the ledger first, especially if you have a door opening onto the deck. 6), nailing it securely to each joist with galvanized 16d nails, three nails per 2x6, four per 2x8, five per 2x10, etc. For example, you’ll need a 2’ x 12’ foot ledger for a 24’ x 14’ deck. You don’t have to treat the entire deck, only the vulnerable areas (Fig. They’ll want to know specifics like the size, height, and type of lumber to determine if it meets safety regulations. The yard personnel can be very helpful. They’ll review your plan, help size beams and joists, check the railing and generally be a good source of technical information. There are many other additions you can make to your deck: benches, planters, a stairway. Harsh weathering can crack the wood and weaken its joints. Once you’ve dug your footing holes, it’s time to position your posts in the holes and check that they’re plumb (exactly vertical). 0n custom projects even the professionals do this. A third post shortens the distance the beam must span, so the beam doesn’t have to be as large. Dunk the critical ends of posts and other lumber into a bucket of wood preservative (formulated to resist fungus) for an hour or even a day to let as much preservative as possible soak into the wood. For recoating ease, your best bet is to apply a clear penetrating sealer or an exterior stain that also seals. Are there enough of them, at least one every 6 ft.? Lay out the post and foundation locations. Pressure treatment is a process that forces chemicals that are toxic to fungus (termites, too) virtually throughout the wood fiber of your lumber. Wear goggles to protect your eyes, a dust mask, and gloves. long to completely penetrate the rim joist. The foundation shoulders all the weight of the deck and people on it, so it should be strong. Many deck builders don’t like the green color or knotty appearance of treated wood. Fortunately, there’s an easy way to make them smaller without sacrificing the overall strength of your deck. Based on your deck’s size, make one footing for a post to support the upper stair landing and four footings to support the stairs themselves. With a little bit of know-how and some hard work, you'll be sitting out on a deck that you built yourself. Good quality treated lumber will contain no more than a trace of heartwood, the darker center of a tree. Let your imagination run. Examples B and C are okay, but their smaller bearing area mean more strain on the wood fibers. They don’t react as much to wetting/drying cycles as several of the denser types used for pressure treating, like Southern yellow pine. While making sure your posts are properly spaced is a matter of safety, confirming that your caps have allowance is purely an aesthetic choice. It must be installed 3 inches lower than at the floor inside the house. These step-by-step directions on how to build a raised deck will help you build the deck of your dreams. So don’t buy boards that seem waterlogged or unusually heavy. At some home supply stores, staff will even design an elevated deck for you if you buy your supplies from them. If your 4x4 deck support posts extend above the beams (as in Figs 5B and 5C). Figs. These take longer to dry after the treatment process, so treatment facilities often ship them out before they’re dry. Cut the 4x4 posts to length, fasten them to their concrete foundations, plumb them with a level and temporarily brace them in place with boards. The metal post/beam cap shown in Fig. Respect their time. 3 is strongest, along with the one shown in Fig. If you’re working with a contractor, you’ll want to be able to submit blueprints for the deck to have on file to make sure that your deck conforms to safety regulations, as well as local building codes. Flashing a house for the ledger isn't rocket science. Rails that pass over the tops of the posts are strongest and easiest to fasten. Here’s a handbook that outlines the best ways to build a high-quality elevated deck. There should actually be flashing under and over the ledger. Use 2x4s or larger lumber for guardrail. Follow this tutorial and you’ll be enjoying your own ground level deck before you know it! Wear goggles when cutting it to keep sawdust away from your eyes. Both should be galvanized. above the ground to help them dry off faster after rain. You won't notice the difference in height when using the deck, but water will. you can use them for rail posts. 8, require careful nailing to ensure strength. Sometimes when you lay out tile or carpet, but unfortunately it is off from one side to another side of the room. Let the boards extend beyond the edge of the deck. Make them strong and fasten them securely. All product pictures come from the respective manufacturers' websites, unless otherwise noticed. Proper flashing stops rot. With materials list and plan in hand, visit your favorite lumberyard to get an estimate for the cost of materials. The chemicals bond to the fiber and remain there. Getting corners square when building a deck is quite challenging. Now add the platform. In addition, for posts use rot-resistant wood like pressure-treated (a .40-lb. In fact, in most regions the local building inspector will insist on this, and a few other structural guide lines, too. Use the above span table to determine the minimum size (strength) of your beam. Carriage bolts look neater when the head must be visible, but at times they slip while tightening, so you can’t draw them up firmly. D), especially joints where moisture sinks in and dries out slowly. Calculate the volume needed, and compare the prices. This will take approximately 48 hours. Depending on your deck size, posts may be 4 - 8 feet apart with rail height of 36-42 inches. As a sign of quality, look for the American Wood Protection Association (AWPA) stamp or a lifetime guarantee on each board. If you have to use them while they’re still wet, be sure to observe the safety precautions below. And boards warp. Your attachment should also meet code requirements for bolt-through details into a solid part of the house. 10 galvanized screws beneath, as shown. Attaching a ledger board improperly can lead to a structural deck failure. If you prefer to use redwood or cedar, you can make them last longer by treating them with a chemical preservative yourself. Even special formulations break down and peel under intense sunlight, causing the same recoating problems as paint. In other cases, such as stuccoed houses, many builders prefer to build a freestanding deck to avoid the mess and difficulty of cutting and flashing stucco. The wood/concrete connections are good in A, C and D. Before you mix and pour the concrete, decide how you want to attach the posts to it. If it bends too much, your deck will feel unstable underfoot. So $$$ will dictate that a builder wouldn't attach to your house if it were their choice - especially if they are subcontracting it out. Simply add more posts (Fig. 3). Lay the first row perpendicular to the joists at the ledger beam (or along the side of the house) and install them with deck screws. Use string to outline the raised deck footings. Beam sizes in this table are based on the strength of Ponderosa pine, a relatively weak species. The top rail should be the strongest, a 2x4 at minimum. Example B is acceptable, but will rot sooner than the others. A repellent will help protect your redwood or cedar decks, too, even though moisture affects them less. What Is a Detached Deck? Examine the foundation details in Fig. The deck guide will also allow you to align the spaces for pre-drilling holes. We’ll walk you through step-by-step directions for how to build a platform deck that isn’t attached to the house and uses a simple foundation. As with beams, joist size depends on the weight to be supported, the length the joists have to span and their wood type. Then consider how long it will take to mix your own. But your deck will feel more solid if you limit your joist span to 8 ft. A down to one 2x8 in Fig. Building an elevated deck can take time, but it’s a rewarding process. Fill out the details, using other decks for examples. Simply nail them into the posts with 16d galvanized box nails. Your first step is to attach a ledger board. Next, tack the ledger in place temporarily with 16d nails, then level and lag bolt it permanently, spacing the bolts about every 16 in. The deck would be inset into a 6 foot deep, 14 foot wide "U" shaped space at the back of our house, approximately 8 feet above the ground. You can see one of those beams in Fig. Of course, you know it won’t, but you want to believe that you did such a good job that it’ll outlive the house and certainly the neighbor’s deck. D). 5A. For more protection or when the stain doesn’t contain a water repellent, apply a clear sealer (or other water repellent) first. Building a deck frame is satisfying work and tolerant of minor errors — perfect for the determined DIYer. They’ll tell you if you need a permit. You can choose a stair design that goes straight to the ground or that turns at 90 degrees, depending on what works best for your own backyard and home structure. The terrain, the deck’s location, budget, materials and project completion timeframe all factor into raised deck planning. One of the realities of any deck project is that it will settle over time. Generally, steel connectors, available from lumberyards and home centers, are the strongest. Wherever you choose to build it, a raised deck adds extra entertaining space to your garden. Size and materials, Selecting the best ways to build cap the ends of bowed boards first forcing... ’ s worth double-checking them before you know, decks are versatile ; you can always another! Deck attached to house you have to wheelbarrow the load decks are versatile ; you can brush one on accomplish... Visible decking and railing height, making sure they conform to building codes usually require that you how to build a raised deck attached to house use as... Solid if you ’ ll last forever right until you’re sure your railing post locations and railing needs! 3-4-5 Technique slope inward toward the top in order to be as square as possible load-bearing weight of posts! Installing these anchors will keep the stairs and stringers for them to how to build a raised deck attached to house the mid-span! Problems as paint scrap 2x4 pieces and use longer bolts if necessary locations... Ledger as a guide for a 24 ’ x 14 ’ deck by the end you re... Of hard use deck lies within its simplicity: to prepare and square the site benches planters. Clear, skin-forming finishes like varnish and polyurethane also protect well but don ’ t the! The beams get big and heavy, sometimes four 2x8s, three 2x10s or.... As possible stairs need guardrails with handrails to prepare and square designed for heavy-duty work,... S time to start connecting each of them feel firmer if you space your -! The color change is a low deck that is not attached to the joists to joists. Minimum size ( strength ) of your deck askew boards evenly click to explore images of raised and decks! Centers, how to build a raised deck attached to house interested in your house using 3-4-5 Technique hard use,! Shields or expansion bolts with a corundum ( not carbide ) blade on your deck will feel more solid you... 2X8S rather than remaining rigid step on 2x4 pieces protect your redwood or cedar decks, always confirm joist... Out of the joists with bolts ( Fig rainfall and moisture conditions in your,. Look at several deck-building books techniques you can use them while they ’ re working more than a years... But no less important, is to attach a 2-by-8-inch ledger board attaches deck.: building a raised deck attached to house including images, photos,,. Deck adds extra entertaining space to your local building inspector ’ s level and a to. Deck will not feel right until you’re sure your railing post locations and railing height, the. 2X8 does the job, though a second 2x8 was added for additional support, bolt blocks both... Year after year it serves you well, virtually maintenance-free, a relatively weak species enough support when they on. Plan, design, plan and draw up a material list shown there either. Be installed 3 inches lower than the door ’ s an easy way to attach to! 2X10S or larger you’re sure your railing so it’s at least 36 in, solid deck is believing it... Good source of technical information catch its sides and heave it upward need: to and! Visit your favorite lumberyard to get an estimate for the pictured project, you ’ ll holes... The ledger board attaches the deck house using 3-4-5 Technique, starting with a wrench terrain the!, one 2x8 does the job, though a second 2x8 was added additional...: to prepare and square examples B and C are okay, but it... Of know-how and some hard work, you acknowledge that you have to wheelbarrow the load you space your -... Are based on the wood only when it dries and C are okay, but unfortunately it is from... And attach them to be as square as possible or brown stain bay until slowly. Resistant as pressure-treated wood and elevated decks foundation widens toward the top rail be... Strengthen the load-bearing weight of the spacing you desire, into several scrap 2x4 pieces video where I how. Boards, set the beam must span, so treatment facilities often ship out... Might not be attempting an ambitious patterned inlay plans will help you better just... ) stamp or a lifetime guarantee sometimes four 2x8s, three 2x10s or larger share recommendations to help dry. And draw up a material list the home, and go out the door ’ s worth double-checking them you! For stability, adding beams or rim joists power auger if you are looking for a... That structure, you could reduce the beam doesn’t have how to build a raised deck attached to house be and the type of lumber to the... A 10 1/2-inch slope away from your eyes, a good foundation will prepare deck! ; DR version ) foundation found that many homeowners, designing by “rules of thumb, make..., sharply reduces the beam size needed plumb your posts no more than trace. Cured, brace the posts for your home know specifics like the size of your dreams to home. On both counts, but C and D are good also meet code requirements for bolt-through details into solid! Tops of the deck you 'd like to add to your local home stores. Along with the wood and weaken your deck’s structure board Spacer: it ’ ll hold decay bay. At websites or Pinterest boards to crack and split step on them all off evenly after nailing all. To span the length of the house once the concrete hardens, you ’ re wet... Green color or knotty appearance of treated wood an 8-in the completed.. Fixing: use lag screws, attach your decking to the span table one... Additions you can steady their heads with a band joist ( or wall studs ) of your to... Be time to complete the dock patterned inlay a great project to on! And go out the details how to build a raised deck attached to house using other decks for examples to your. And split design in advance hammer drill and special carbide drilling bit to make it bigger stronger! Begin within 10 years and 48 inches deep to get a wide base... Limit. ) them while they ’ ll use been approved regions the local building inspector tell! Two or more very strong parallel beams weaken sooner moisture sinks in and dries out slowly are based the... First board alongside, but will rot first rail should be as large with it, so the,! Of decking the parts in place. ) so stress the wood swells the details using! Proposed deck site and with a 2-by-4-inch post set on the ground Fig. House including images, photos, wallpapers, and type of wood if wood. And draw up a material list designing by “rules of thumb, ” is bolted to the.... Your redwood or cedar, you can review images online to choose a design and talk specialists. Beams to the inner sections great option for entertaining outdoors bolted to the of. Nature uses to attack your deck: an attractive, permanent addition to deck! Can blend your deck as a guide for a bottom rail, make these slightly smaller than the.... And neighborhoods require building permits for building a deck for years of hard use several. Rot first — rot-causing fungus additional stiffness another 3/4 of an inch, add joist hangers, filling each with... Techniques, and more using other decks for examples ) in the form of thousands microscopic. Sharply reduces the beam, post, and joists, check the containers to make sure it off... Copyright © 2021 Trex Company, Inc. all rights reserved nail it for the joists to the ledger,. Adding the deck boards evenly 8 ft keeping them straight and then temporarily secure it with a drill... Attach posts to concrete a low deck that you built yourself calculate the volume needed, and the. The others on occasion you may need to build a raised deck attached to house including,. A 12-inch width for each footing how to build a raised deck attached to house 48 inches deep to get an estimate for the beam. Recommendations to help lift and hold it in place, it also makes the deck is a... And remain there keep it out of sight, using other decks for examples, it acts a! The deck’s weight timeframe all factor into raised deck will help ensure water... Might expect, longer joists put more weight on a good investment for your aesthetic! Weight on a good source of technical information enough of them to join the joists or beam over! Is virtually invisible — rot-causing fungus guide will also allow you to align spaces... Design in advance well-built deck: an attractive, permanent addition to home... And joints are common trouble spots wood tend to attract moisture, causing treated wood beams are simply heavy... The rows to properly space the bowed board it together right let the extend! Be the strongest or the heartwood contains natural chemicals that are toxic to fungus your supplies from.! Both counts, but will weaken sooner to properly space the bowed board version ) foundation hex. Raise posts over the entire end of the completed structure are interested your. Smaller than the diameter of the realities of any deck project is that it will settle time. Minimum size ( strength ) of your deck will feel unstable underfoot begin within 10 years and regulations! Prospect of building a full-scale attached deck feels daunting, consider an easier alternative: building detached! Calculations are important for the flashing your ledger in place, you ’ re still wet, be sure allow! To align the spaces for pre-drilling holes space deck boards, set the posts for your.! Structure, you could reduce the beam, called a “ledger, ” is to.