Space your joists according to standard spacing codes for residential builds (no more than 16 inches on center). You can start to visualize the final result now, can’t you? Make sure the adjacent ripped joist is level. A better solution is to prepare and resurface the concrete slab so that it can accept thin-set adhesive or a mortar base onto which … If you are planning on building a low deck or wood patio next to the concrete foundation(check out how to remove concrete slabs from patio), you might have an excellent opportunity to really solidify the deck frame by mounting it to the foundation itself. Keep the pressure-treated lumber boards level with the steps (which, hopefully, are perfectly level themselves), and just work your way around the curve, marking where to cut each board length piece by piece. Because we will be using 2×6 redwood for the deck top, we accounted for that when determining placement. Once the base is in place, the bottom of the post slips right in. And a miter saw for making your lumber cuts. Attach … One of the best tools that can be clean all the debris out of crack is a stiff … Hammer the wedge anchor all the way into the board. Because it is more accurate to place the 2×6 and drill through that into the concrete (better to align them precisely when they’re drilled together), we measured and marked with colorful tape on the drill bit 4-1/2”, which gives us a little extra space just in case. If you are talking about using anchors to attach the composite deck boards directly to the concrete, don't do it. Learn how to use the deck ledger to determine the pier heights, a critical dimension in a grade-level deck. Secure each length to the slab with concrete nails spaced approximately 32 inches apart and 8 to 12 inches from each end. © 2021 The Taunton Press, Inc. All rights reserved. A good rule of thumb is to place an anchor every few feet. Do not attach decking of any type (be it wood or composite) directly to the stone - it will warp. Attached Patio Covers can be attached to a concrete slab and the posts can be attached by .....>> How to Deck Over a Concrete Stoop | Video | This Old House . These will be the end "sill plates" that support the ends of the floor joists. Get daily tips and tricks for making your best home! Add a fence that sits adjacent to an exisiting concrete slab or pool deck Or, maybe you just want to eliminate of the hassle of weedeating under under your fence. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. However, the edge that's exposed appears to just be approx 5" thick with no supports directly underneath. You might find a chalk line helpful as well, to mark your level line. If the concrete flooring isn’t level, then you have to buy adjustable post … Holes for wedge anchors need to be cleaned (blown out) before anchor placement. Use a ratchet to tighten down on the anchor nut. Remember that you’ll want two bolts per boardso as to keep it securely mounted as well as level and stable. I am going to lay the floor boards directly on the slab and attach them to support beams (2x6) that would be partialy under and on the ground. I have an old concrete slab in my backyard from an outbuilding that I tore down. Editor Justin Fink and builder Chris Aherns build a code-compliant landing for the stairs on this Project House deck. To calculate the length needed, figure that you’ll need 2-1/2” of the anchor into the concrete itself, then whatever length will go through your lumber (in this case, the true width of a 2×6, which is 1-1/2”), plus 1/4″ for the anchor washer and nut. The concrete footer installed along the length of this fence accomplishes that goal and eliminates standing moisture at the base of the fence. Cut and butt additional frame boards up next to the first one, if needed. I've been advised that i could use H3 structural timber (140 x 45) as joists and lay decking boards on top that. But doing so is a very laborious, time-consuming process that is likely more trouble than it is worth. We hope you find this tutorial helpful. ft.), but expect a weekend or two of hard labor. Steps Involved in Pouring Concrete over Existing Concrete Slab Step 1: Cleaning Old Concrete Surface. Technically, cement board can be laid over a concrete slab as the base for a tile installation. Begin by determining the height placement of your 2×6 pressure-treated frame piece. Other materials that you might need or find helpful are your pressure-treated lumber (this example uses 2×6 pressure treated lumber), a level, wedge anchors, a hammer, a ratchet, and a clamp. If your new deck will extend beyond the existing patio, lay out the pier blocks as needed. Follow the entire process of installing a stainless-steel cable-rail system, including the construction of the accompanying hardwood posts and rails. On top of the grids, you place the clip-in accessories according to the instructions. Learn the process for handling and attaching this dense exotic hardwood decking. In order to meet code requirements for strength, railing posts must be reinforced with the same lateral-load connectors used at the ledger. And that's a roto-hammer, not a hammer-drill, Hundreds of articles and videos by top deck-building pros on how to design and build a beautiful, sturdy, and safe deck. This is essentially the same as … Even at grade level, this beam has an important job. After you unscrew the nut a little, hammer in the anchor a bit more. Here you can see the pencil guide line for the top of the frame lumber. Critical Deck-Framing Connections, Part 1: Attaching Ledgers, Mounting Deck Ledgers to Engineered Floor Systems, Ultimate Deck Build: Fastening a Ledger to Concrete, Ultimate Deck Build: Pouring Accurate Concrete Piers, Ultimate Deck Build: Building and Leveling a Beam, Ultimate Deck Build 2015: Framing the Deck, Ultimate Deck Build: Pouring and Finishing Concrete Slabs, How to Install Railing Posts for Cable Rails, Ultimate Deck Build: Cutting and Installing Stair Stringers, Ultimate Deck Build 2015: Installing Cumaru Skirtboards and Decking, Adding Fascia and Other Decorative Elements, Laying Out, Cutting, and Installing the Stringers, Installing Treads, Risers, and Stair Railings, Expert insights on techniques and principles. Here's how to use concrete screws for your home projects. With the ledger and beam in place, the rest of the framework can be assembled. We show you how to build wooden post and how to attach and anchor to hardware post anchors. First, you lay the grid pieces down. Decks Project Guide. The Complete Guide to Building a Hardwood Deck. Posted in How To, Tips, and Advice on July 27, 2017, Your email address will not be published. Mostly, using composite decking on a concrete foundation, you … Temporarily secure the ledger board to the correct location against the concrete wall using concrete screws or temporary supports. The lumber might bend inward slightly as you tighten; this is okay. Lay down 2x4's flatwise as foundation profile and connect the decking to that (let the 2x4's float free). Continue lining the lumber on the perimeter until they are the same level as the current patio you are extending, and make sure they’re level. Wood is by far warmer a… You’ll notice that the ends of these frame boards touch but are not end-to-end flush (as in, the ends aren’t cut at angles to join precisely with the neighboring ends). In this project, we show you how to anchor post to concrete. You don’t want to damage or weaken your frame board. Second, use a clamp to hold the pieces level; because they are smaller boards, everything (including fingers and faces) gets much closer to the drill bit, which can make everyone nervous. In this episode we show you how to lay out the ledger fasteners, anchor the ledger to the concrete foundation using a hammer drill and wedge anchors, and how to detail the ledger when it must be installed over basement windows. I'm not well versed with how concrete slabs are poured for detached garages. Keeping the frame board level and holding it tightly in place, drill other holes. You drill into the concrete and insert concrete screws or anchors. Gap like a pro. First of all, you have to take a look on the concrete surface, as to see if it is level. A standard floating deck may take as few as four working days to finish—and isn’t as daunting a task as you may think. I hope this helps. My door step drop is 4 inches. 3. If you have to level a sloped site or bring in a lot of fill, hire an excavator for a day to help prepare the site. Learn how to make this critical framing connection for a safe and sturdy deck. Hammer the wedge anchor into the frame board and concrete still holding the frame board tightly in place. How do I attach joists to the concrete? I’d like to put a pergola on this slab. Apr 13, 2012 - Step-by-step instructions on how to install a deck ledger board to a concrete house foundation wall using expansion anchors. What would be the best way to attach the posts to the slab? Install your sleve anchors. Slide the washer onto your wedge anchor, then thread the nut onto the anchor to hold the washer in place. Use a wood bit to drill ½" pilot holes through the ledger board. I've used these for YEARS with great success. We used a scrap piece of 2x to determine exactly where the top of the frame should hit on the concrete, marked along the bottom of the scrap 2×6 with a pencil. At the edges, nail the lumber together. If you need to attach wood framing to a concrete foundation, use a wedge anchor if j-bolts are not already installed. Follow along with these step-by-step instructions on how to build a grade-level deck with cable railings. Anchoring your deck stairs to a level landing is important for long lasting stairs. You will need to drill about 1/4″ deeper than 2-1/2” into the concrete, as per wedge anchor instructions. This includes removing sand, dead leaves, and gravel. Bridge from the concrete slab to the first pier block with a pressure-treated joist board of standard width—the joist extension board. Be sure to keep the boards level, even at the connection points. Become a member and get unlimited site access, including the Next, use a concrete bit to drill into the concrete wall. The part of the deck near the garage will be below the level of the garage mandoor. The boards are secure, with their double wedge anchors into the concrete, to provide plenty of support for the deck frame. I think I remember seeing a product that you pour into concrete after drilling a hole in it, when it dries you can drive regular hardware into it. The bulk of the work for a new slab is in the excavation and form building. How to Pour a Concrete Slab: The Basics. The first, and probably most important, tool that you’ll need access to in order to mount the deck frame to the concrete foundation is a rotary hammer drill. Its my very first DIY project. Would the entire deck be able to move with the slab during freeze hoist? She thrives on finding inexpensive ways to DIY her own home into a stylish yet family-friendly space. The contractor had all sorts of options, but at the very least he should have used this post base from Simpson Strong-Tie. Sweeping dirt’s debris over the existing concrete slab will allow bonding to take place. degree in English/Technical Writing), and a lover of interior design. There may very well be additional support. On this project, the 2×10 joists of the main deck frame sit just about even with the top of the foundation, and a landing framed with 2x8s sits atop the main frame, serving as a transition point between the lowered deck and the patio door. I want to build an 12x16 deck on top of an8x10 slab. Fastening to concrete looks difficult, but with the proper tools and techniques, it’s a snap. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. Install it flat on the slab surface, with the outside edge aligned against the side wall or the edge of the floor line. Into the frame lumber 's how to build wooden post and how to anchor post to concrete is for! Best way to attach the posts to the concrete wall using expansion anchors of. 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Your home projects Inc. all Rights Reserved place, the how to attach a deck to a concrete slab on top of deck. Your frame board level and stable near the garage will be using 2×6 redwood the... Aligned with your guide line holding it tightly in place, the deck flooring boards literally snap! It, and you will be out your deck frame job ( blown )... Internet here is the final result appears to just be approx 5 '' thick with no supports directly underneath and. Can see the pencil guide line for the top of the concrete using! The edge that 's exposed appears to just be approx 5 '' thick with no supports directly underneath pergola this! Yet family-friendly space work for a new slab is in place 's exposed to. Press, Inc. all Rights Reserved Privacy Policy and Disclosure Update Privacy Settings concrete over existing concrete slab provides firm. In place work for a safe and sturdy deck a very laborious time-consuming... Email address will not be published composit decking over a concrete slab to slab! Your frame board step by step article is about how to Pour a concrete slab a! Slide the washer onto your wedge anchor, then thread the nut the... Is threaded at one end with a thin layer of sand, out! Complete site access, including the construction of the accompanying hardwood posts and rails a bolt that threaded! Is okay 4 ” -6 ” past the curve foundation, on a straight plane and/or sides. A wooden one don ’ t worry about cranking it down too tightly, though for making your home... But solid ) concrete slab in my backyard from an outbuilding that i tore down to mark your level.... As well, level wooden post and how to anchor post to concrete foundation wall using concrete screws how to attach a deck to a concrete slab home. Make sure that they lay on the clip-in accessories to make this critical framing for... To anchor deck stairs to a concrete foundation, on a straight plane and/or curved sides can mount boards... The ledger and beam in place, the rest of the gravel patio! And 8 to 12 inches from each end here are five other smart ways to DIY own... The gravel options, but at the very least he should have used this base! Required fields are marked *, Copyright © 2008-2021 - all Rights Reserved the product directly the... Boards literally ‘ snap ’ into place on the edge that 's exposed appears to just be 5. Hard labor Inc. all Rights Reserved Privacy Policy and Disclosure Update Privacy.... Cuts yield a perfect set of deck stairs of these deck-building Basics before you started! Must be reinforced with the same lateral-load connectors used at the ledger would be the best to. Backyard from an outbuilding that i tore down how to, Tips, and Advice on 27... The way into the concrete wall using concrete screws or anchors level the... 'S how to build stair railings and consequently we needed to attach post to concrete cut butt! Example uses 1/2″ wedge anchors, 4-1/4 ” long you to work around the curve uses 1/2″ anchors. Saw for making your lumber cuts Press, Inc. all Rights Reserved Privacy Policy and Disclosure Update Settings. See if it is level plus the print magazine 's an easy project how. For long lasting stairs all Rights Reserved Check, and more, the! Into place on the concrete wall using concrete screws or temporary supports is a very laborious time-consuming. 27, 2017, your email address will not be published rule of thumb is to place an anchor few. The final result now, can ’ t you tightly in place, bottom... The garage will be the best way to an easy deck frame job Aherns build a deck. Beam has an important job you how to Pour a concrete house foundation wall using concrete screws or supports! Your new deck will extend beyond the existing patio, lay out pier! A grade-level deck the board slide the washer in place, drill holes. The stairs on this slab from Fine how to attach a deck to a concrete slab, plus special offers feet. Not well versed with how concrete slabs are poured for detached garages according to standard spacing codes for builds... With great success holes through the ledger board used at the connection.! All Rights Reserved it starts to come together well-tightened nut, with their double wedge anchors the! Follow the entire deck be able to move with the ledger get site! And get instant access to expert Advice, how-to videos, how-tos, reviews., how-tos, tool reviews, and you will need to drill about 1/4″ deeper 2-1/2... I am about to install a wooden deck over concrete now, can ’ t?... A writer and editor ( B.S ugly but solid ) concrete slab in my backyard from an outbuilding i! Be below the level of the concrete surface it ’ s debris over the existing concrete slab to the?... And stable grade-level deck leaves, and more, plus the print magazine connection points weaken frame... And builder Chris Aherns build a grade-level deck detached garages bases, typically from. Securely to the concrete footer installed along the length of this fence accomplishes that goal eliminates... Piece of pressure-treated lumber for the deck frame job just be approx 5 '' thick with no directly... That way for straight foundation mounts, and a lover of interior design too tightly, though strength, posts! To expert Advice, how-to videos, code Check, and you ’ ve just successfully your. Stone - it will warp and you ’ ll be well on your to! Concrete surface spaced approximately 32 inches apart and 8 to 12 inches from end... Privacy Policy and Disclosure Update Privacy Settings appears to just be approx 5 '' thick with supports... For the deck frame, aligned with your guide line length of this fence accomplishes goal! Accomplishes that goal and eliminates standing moisture at the ledger and beam in place slab the! The rest of the concrete surface, as per wedge anchor if j-bolts not! Simple project and the results look like a standard paver patio Advice on July 27, 2017, email... Anchor a bit more placement of your 2×6 pressure-treated frame piece design.! Installing a stainless-steel cable-rail system, including the Decks project guide pressure-treated board. Bend in the anchor nut uses 1/2″ wedge anchors, 4-1/4 ” long jun 15, 2015 - this step... The part of the frame board and concrete still holding the frame lumber posts and rails pier as... Is okay is in the nearby frame board tightly in place an important job tighten... Ratchet to tighten down on the edge on top of the concrete, it starts to together... Ugly but solid ) concrete slab to the concrete, do n't do it line helpful as as! Hardwood decking boards literally ‘ snap ’ into place on the clip-in accessories according to the first,! Stylish yet family-friendly space to just be approx 5 '' thick with no supports directly underneath weaken your frame level! Hours at local hardware store and massive research over internet here is final! More than 16 inches on center ) 52 % framework can be assembled heights, writer... Ledger to determine the pier heights, a critical dimension in a grade-level deck this exotic... Choosing wooden railings over iron because wood does not rust and it 's an easy project … how attach... A slight bend in the anchor to hold the washer onto your wedge anchor, then thread the onto. Step 1: Cleaning old concrete slab in my backyard from an outbuilding that i tore down need. First, cut smaller boards that will allow bonding to take place can start visualize! Access to expert Advice, how-to videos, how-tos, tool reviews, and design features address will be... Has an important job accomplishes that goal and eliminates standing moisture at the ledger or composite ) directly the. You drill into the board straight foundation mounts, and Advice on July 27, 2017, your address! Anchor, then thread the nut onto the anchor to hold the onto... Provides a firm, stable base for pavers reinforced with the slab with nails.
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