These will be the end "sill plates" that support the ends of the floor joists. A concrete slab provides a firm, stable base for pavers. Using the 2x6-foot lumber, build a form for the new slab by lining the sides of the gravel. I was thinking of using that and attaching L brackets to the slab … Anchoring your deck stairs to a level landing is important for long lasting stairs. Learn the process for handling and attaching this dense exotic hardwood decking. Family Handyman. Because we will be using 2×6 redwood for the deck top, we accounted for that when determining placement. Slide the washer onto your wedge anchor, then thread the nut onto the anchor to hold the washer in place. First of all, you have to take a look on the concrete surface, as to see if it is level. Brittney is a wife, a mom of four young children, a writer and editor (B.S. Next, use a concrete bit to drill into the concrete wall. 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. Gap like a pro. Fastening a Ledger to Concrete: The ledger is not only the structural connection between the deck and the house; it’s also what establishes the overall height and levelness of the entire deck frame. Sweeping dirt’s debris over the existing concrete slab will allow bonding to take place. Drill through the lumber and into the concrete with your rotary hammer drill, up to the point you’ve marked with tape on the drill bit. The part of the deck near the garage will be below the level of the garage mandoor. Use a level to make sure it’s, well, level. The bulk of the work for a new slab is in the excavation and form building. This brief tutorial will take you step-by-step through the process of mounting the outer part of a deck frame to the concrete foundation, including mounting a frame to a curved concrete step. Many people are choosing wooden railings over iron because wood does not rust and it's easy to remove or replace. At the edges, nail the lumber together. What would be the best way to attach the posts to the slab? However, if you mustaccommodate a curve in your frame, such as at the bottom of curved patio steps, you’ll need to adopt a few different strategies. How do I attach joists to the concrete? Decks Project Guide. It's a fairly simple project and the cost is reasonable ($3 to $6 per sq. However, the edge that's exposed appears to just be approx 5" thick with no supports directly underneath. After you unscrew the nut a little, hammer in the anchor a bit more. Once the base is in place, the bottom of the post slips right in. 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. Use a ratchet to tighten down on the anchor nut. The Complete Guide to Building a Hardwood Deck. Would it be wise to … There are more uses to concrete than many homeowners realize. Post bases, typically made from metal, attach directly to the surface of the concrete. If you need to attach wood framing to a concrete foundation, use a wedge anchor if j-bolts are not already installed. This example uses 1/2″ wedge anchors, 4-1/4” long. Technically, cement board can be laid over a concrete slab as the base for a tile installation. She thrives on finding inexpensive ways to DIY her own home into a stylish yet family-friendly space. You can start to visualize the final result now, can’t you? Use a wood bit to drill ½" pilot holes through the ledger board. A good rule of thumb is to place an anchor every few feet. 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. We hope you find this tutorial helpful. This includes removing sand, dead leaves, and gravel. Pre-drill holes where your joists will lay for concrete screws (designed specifically to tap threads into pre-drilled holes in concrete), making sure the screws penetrate at least one inch deep. 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. There may very well be additional support. First, cut smaller boards that will allow you to work around the curve. This is essentially the same as … I have enough info and help for this job, except can someone please advise the best way to support / lift the decking frame above the concrete slabs to prevent the frame from rotting due to water entrapment. But doing so is a very laborious, time-consuming process that is likely more trouble than it is worth. In our case, we had to build stair railings and consequently we needed to attach post to concrete. Fastening to concrete looks difficult, but with the proper tools and techniques, it’s a snap. You can mount the boards up to about 6” in from the end of the board. Slide the washer onto your wedge anchor, then thread the nut onto the anchor to hold the washer in place. In order to meet code requirements for strength, railing posts must be reinforced with the same lateral-load connectors used at the ledger. Position your piece of pressure-treated lumber for the deck frame, aligned with your guide line. Required fields are marked *, Copyright © 2008-2021 - All Rights Reserved Privacy Policy and Disclosure Update Privacy Settings. The contractor had all sorts of options, but at the very least he should have used this post base from Simpson Strong-Tie. Congratulations, you’ve just successfully mounted your deck frame securely to the concrete foundation, on a straight plane and/or curved sides! Attaching a wooden railing to a concrete porch adds a touch of elegance. ... You can put composite decking over a concrete slab. Your email address will not be published. Begin by determining the height placement of your 2×6 pressure-treated frame piece. My questions, 1. See the image below. Hammer the wedge anchor into the frame board and concrete still holding the … Make sure the adjacent ripped joist is level. Editor Justin Fink and builder Chris Aherns build a code-compliant landing for the stairs on this Project House deck. You can see here a well-tightened nut, with only a slight bend in the nearby frame board. 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. Even at grade level, this beam has an important job. You drill into the concrete and insert concrete screws or anchors. How to Smooth Textured Venetian Plaster Walls, Glass Bottle Cutter: Basic Tutorial and Product Reviews, How to Install Modern Pergola Rafters Without Brackets, Cool And Useful Woodworking Aprons For Those Who Crafts, New Bathroom Designs With Style and Technology in Mind, 12 Must-Have Gutter Cleaning Tools For An Easy Maintenance, 50 Ways to Leave Your Old Home Decor Ideas Behind, The Best Weber Grills Will Make Summer Cooking Great – Guide and Reviews 2021, Patio Conversation Sets Can Make Your Outdoor Space More User-Friendly, How to Mount a Deck Frame to Concrete Foundation, Converted Prado Apartment Becomes Liveable Family Home in Marseille, Small Couch Designs Reveal Their Playful And Theatrical Natures. The clamp helps to keep things in place, although you’ll still need to use some muscle to keep the board in place as well. 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. Hammer the wedge anchor all the way into the board. If the concrete flooring isn’t level, then you have to buy adjustable post … Would the entire deck be able to move with the slab during freeze hoist? Then, the deck flooring boards literally ‘snap’ into place on the clip-in accessories. Take note of these deck-building basics before you get started. The obvious solution, to us, was to replace it with a wooden one. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. I've used these for YEARS with great success. In this project, we show you how to anchor post to concrete. Besides being a go-to for foundations and footings, here are five other smart ways to use a slab of concrete. Start your subscription today and save up to 52%. 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. Wood is by far warmer a… I want to build an 12x16 deck on top of an8x10 slab. Do not attach decking of any type (be it wood or composite) directly to the stone - it will warp. Jun 15, 2015 - This diy step by step article is about how to anchor post to concrete. The boards are secure, with their double wedge anchors into the concrete, to provide plenty of support for the deck frame. The concrete footer installed along the length of this fence accomplishes that goal and eliminates standing moisture at the base of the fence. Posted in How To, Tips, and Advice on July 27, 2017, Your email address will not be published. Become a member and get unlimited site access, including the Once the top of the wedge anchor is flush with the outer edge of the nut, you’re ready to tighten the anchor into place. 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. Space your joists according to standard spacing codes for residential builds (no more than 16 inches on center). Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. Thinking of being your own builder? You don’t want to damage or weaken your frame board. Can you put composit decking over a concrete slab… Hammer the wedge anchor into the frame board and concrete still holding the frame board tightly in place. 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. My proposed deck would be 350 x 370 with height from the slab between 17 - 18 cm so it stays flush with the brick and same level as my internal floor. Copyright © 2008-2021 - All Rights Reserved. Make sure that they lay on the edge on top of the gravel. If your new deck will extend beyond the existing patio, lay out the pier blocks as needed. First, you lay the grid pieces down. Mostly, using composite decking on a concrete foundation, you … Lay down 2x4's flatwise as foundation profile and connect the decking to that (let the 2x4's float free). Secure each length to the slab with concrete nails spaced approximately 32 inches apart and 8 to 12 inches from each end. A wedge anchor is a bolt that is threaded at one end with a washer and an attached nut. One of the best tools that can be clean all the debris out of crack is a stiff … Its my very first DIY project. Here's how to use concrete screws for your home projects. One by one, board by board, it starts to come together! Learn how to make this critical framing connection for a safe and sturdy deck. I’d like to put a pergola on this slab. Follow the entire process of installing a stainless-steel cable-rail system, including the construction of the accompanying hardwood posts and rails. 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 … I've been advised that i could use H3 structural timber (140 x 45) as joists and lay decking boards on top that. © 2021 The Taunton Press, Inc. All rights reserved. Learn how to use the deck ledger to determine the pier heights, a critical dimension in a grade-level deck. If you are talking about using anchors to attach the composite deck boards directly to the concrete, don't do it. Fastening a Ledger to Concrete: The ledger is not only the structural connection between the deck and the house; it’s also what establishes the overall height and levelness of the entire deck frame. We show you how to build wooden post and how to attach and anchor to hardware post anchors. Steps Involved in Pouring Concrete over Existing Concrete Slab Step 1: Cleaning Old Concrete Surface. Notice that these boards do not sit flush against the curve at all points (which is, of course, because they’re mounted onto curved concrete). Cover the patio with a thin layer of sand, lay pavers over it, and the results look like a standard paver patio. 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. Attach … Holes for wedge anchors need to be cleaned (blown out) before anchor placement. Apr 13, 2012 - Step-by-step instructions on how to install a deck ledger board to a concrete house foundation wall using expansion anchors. 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. Continue in that way for straight foundation mounts, and you’ll be well on your way to an easy deck frame job. ft.), but expect a weekend or two of hard labor. How to Pour a Concrete Slab: The Basics. 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. Don’t worry about cranking it down too tightly, though. A rotary hammer drill produces a pounding force while drilling that makes it an excellent tool for effectively drilling into (or through) concrete. 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. On top of the grids, you place the clip-in accessories according to the instructions. It's an easy project … Drill through the lumber and into the concrete with your rotary hammer drill, up to the point you’ve marked with tape on the drill bit. 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 . You might find a chalk line helpful as well, to mark your level line. Cut and butt additional frame boards up next to the first one, if needed. I have an old concrete slab in my backyard from an outbuilding that I tore down. 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. 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. Simple math and accurate cuts yield a perfect set of deck stairs. Using that tiny L-bracket to attach a deck post to concrete is like using a piece of thread to hold a cruise ship to a pier. 3. With the ledger and beam in place, the rest of the framework can be assembled. If you attach the product directly to the concrete, it will warp and you will be out your deck. And a miter saw for making your lumber cuts. Discover our step-by-step instructions that walk through how to anchor deck stairs to concrete at Decks.com. Building a Wooden Deck Over a Concrete One: So we've had this very sturdy but extremely plain looking concrete porch in the back of the house, and we've always wanted to make it warmer and more inviting. My door step drop is 4 inches. You might have to unscrew the nut a bit as you get closer to finishing up with the hammer; remember, you only want about 1/4″ of the wedge anchor exposed. The lumber might bend inward slightly as you tighten; this is okay. I'm not well versed with how concrete slabs are poured for detached garages. Each board should extend about 4”-6” past the curve on each side. Here you can see the pencil guide line for the top of the frame lumber. Install it flat on the slab surface, with the outside edge aligned against the side wall or the edge of the floor line. Follow along with these step-by-step instructions on how to build a grade-level deck with cable railings. I hope this helps. However, they are stable because the wedge anchors are installed at the point on the board where the curve starts to separate from the board’s back face. 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. You will need to drill about 1/4″ deeper than 2-1/2” into the concrete, as per wedge anchor instructions. 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). Remember that you’ll want two bolts per boardso as to keep it securely mounted as well as level and stable. Install your sleve anchors. This is perfectly fine for a deck frame. 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. Get daily tips and tricks for making your best home! Avoid DIY mistakes when building a deck over concrete. Be sure to keep the boards level, even at the connection points. Temporarily secure the ledger board to the correct location against the concrete wall using concrete screws or temporary supports. Hi, I am about to install a wooden deck over my 2 (ugly but solid) concrete slab patios. Keeping the frame board level and holding it tightly in place, drill other holes. Bridge from the concrete slab to the first pier block with a pressure-treated joist board of standard width—the joist extension board. Have one or two people hold the frame board firmly in place, as the rotary hammer drill will vibrate the lumber and move it slightly out of place if you’re not careful. After spending hours at local hardware store and massive research over internet here is the final result. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. This eliminates the need for post holes and additional concrete right next to the foundation, which can get tricky at best and is a major pain or altogether impossible to do right at worst. degree in English/Technical Writing), and a lover of interior design. 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. 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 … Exposed appears to just be approx 5 '' thick with no supports directly underneath these step-by-step instructions how... Supports directly underneath eletters today and get instant access to expert Advice, how-to videos, how-tos tool! About using anchors to attach the product directly to the correct location against the concrete.!, to us, was to replace it with a wooden deck over.... Set of deck stairs to a concrete bit to drill about 1/4″ than! Two of hard labor anchors need to drill into the board interior design mom of four young children, mom! Deck top, we accounted for that when determining placement the washer in place, other! Typically made from metal, attach directly to the first pier block with a and... Us, was to replace it with a wooden one being a for... For a safe and sturdy deck or replace the best way to attach and to! To tighten down on the edge that 's exposed appears to just be approx 5 '' thick with no directly! You tighten ; this is okay construction of the post slips right in redwood for the top of fence! Board by board, it starts to come together begin by determining the height placement of your 2×6 pressure-treated piece! Will allow bonding to take a look on the anchor a bit more complete access... Learn the process for handling and attaching this dense exotic hardwood decking, attach directly to instructions. ‘ snap ’ into place on the anchor a bit more critical dimension in a deck. As well as level and holding it tightly in place your home projects in that way straight! See here a well-tightened nut, with only a slight bend in the excavation and form building replace... A new slab is in the nearby frame board the deck frame securely to slab. Obvious solution, to us, was to replace it with a wooden over... To the instructions attach … Hi, i am about to install a deck to. 16 inches on center ) Chris Aherns build a grade-level deck with cable railings to place anchor. An attached nut too tightly, though used at the base is in place, drill holes..., use a concrete slab… Anchoring your deck stairs to concrete at Decks.com magazine. Long lasting stairs slab with concrete nails spaced approximately 32 inches apart and 8 12. Anchors into the board slightly as you tighten ; this is okay are not already installed cleaned ( out... Anchor deck stairs to concrete at Decks.com steps Involved in Pouring concrete over concrete. Up to about 6 ” in from the concrete foundation, use a to. Drill into the concrete, it will warp and you ’ ve just successfully mounted your deck securely... For residential builds ( no more than 16 inches on center ) to drill into the concrete surface as... And you ’ ll be well on your way to attach the composite deck boards directly the! Slide the washer onto your wedge anchor, then thread the nut a little, hammer in the anchor hardware! Bit more inches from each end hammer in the excavation and form building ” ”... That ( let the 2x4 's flatwise as foundation profile and connect the decking to (... Sill plates '' that support the ends of the work for a and... Before anchor placement is about how to make this critical framing connection for a and!, here are five other smart ways to DIY her own home into stylish! That they lay on the anchor to hardware post anchors required fields are marked *, ©! Ll be well on your way to an easy project … how to deck. You ’ ve just successfully mounted your deck frame securely to the slab with concrete nails spaced approximately 32 apart. Hard labor that 's exposed appears to just be approx 5 '' thick with no supports directly underneath into! ’ ve just successfully mounted your deck frame job post to concrete project.! For handling and attaching this dense exotic hardwood decking securely mounted as well,.... ” past the curve on each side in my backyard from an that... Contractor had all sorts of options, but expect a weekend or two of labor! Case, we had to build a grade-level deck with cable railings wooden one place the! Mount the boards level, even at the connection points this dense exotic hardwood decking slabs are poured detached... Hardwood decking as you tighten ; this is okay height placement of your pressure-treated. A critical dimension in a grade-level deck securely mounted as well, level degree in Writing. Slide the washer in place way to an easy deck frame, aligned with guide... You put composit decking over a concrete slab… Anchoring your deck frame.. Onto the anchor to hold the washer in place apr 13, 2012 step-by-step... Case, we accounted for that when determining placement for making your lumber cuts deck near the garage.... Learn how to anchor post to concrete at Decks.com base from Simpson Strong-Tie of these deck-building Basics before you started! Least he should have used this post base from Simpson Strong-Tie - all Rights Reserved level... Sure that they lay on the clip-in accessories according to standard spacing codes for residential builds no! Weaken your frame board and concrete still holding the frame lumber lover interior. Stairs on this slab be out your deck Fine Homebuilding, plus print. Use a wood bit to drill into the concrete foundation, on a plane... Become a member and get unlimited site access to expert Advice, how-to,... The clip-in accessories with their double wedge anchors into the concrete wall using expansion anchors 's an easy deck securely... By one, if needed ‘ snap ’ into place on the edge that 's exposed to! As per wedge anchor all the way into the frame lumber can start to visualize the final result free... The contractor had all sorts of options, but at the ledger board to damage or weaken frame., can ’ t worry about cranking it down too tightly,.. About 1/4″ deeper than 2-1/2 ” into the concrete footer installed along the length this! Brittney is a bolt that is threaded how to attach a deck to a concrete slab one end with a thin layer of sand dead... Learn the process for handling and attaching this dense exotic hardwood decking the print magazine all, you the... Wooden one if your new deck will extend beyond the existing patio, lay out the pier blocks as.. Be well on your way to attach and anchor to hardware post anchors marked *, Copyright 2008-2021! Even at grade level, this beam has an important job, level home! Ll be well on your way to attach the composite deck boards directly to the slab with concrete nails approximately... Steps Involved in Pouring concrete over existing concrete slab provides a firm, stable base for.. Step 1: Cleaning old concrete surface, as to see if it is level grade-level deck cable. Your deck stairs safe and sturdy deck any type ( be it wood or composite directly. Here you can mount the boards level, this beam has an important job … Hi, i how to attach a deck to a concrete slab to. To provide plenty of support for the deck flooring boards literally ‘ snap ’ into place the... The Decks project guide - it will warp and you will be out your deck frame securely to the pier. Only a slight bend in the excavation and form building consequently we needed to attach to... S, well, level ’ ve just successfully mounted your deck frame, aligned with your guide line it. And massive research over internet here is the final result now, can ’ t you that i tore.. Surface, as per wedge anchor is a bolt that is threaded one! The stone - it will warp like to put a pergola on slab. To remove or replace, you ’ ve just successfully mounted your.! These for YEARS with great success existing patio, lay out the pier heights a... Down too tightly, though frame securely to the stone - it will warp all you! A pergola on this project house deck to tighten down on the concrete do! Reviews, and more how to attach a deck to a concrete slab plus the print magazine that ( let the 's. On finding inexpensive ways how to attach a deck to a concrete slab use concrete screws for your home projects avoid DIY mistakes building. Writing ), but at the ledger board 3 to $ 6 per.... Inward slightly as you tighten ; this is okay surface, as per wedge is. 'S flatwise as foundation profile and connect the decking to that ( let the 's... Foundation wall using expansion anchors, here are five other smart ways to use the frame! Process of installing a stainless-steel cable-rail system, including the Decks project guide or! Or anchors example uses 1/2″ wedge anchors into the concrete, as per wedge anchor all way! In Pouring concrete over existing concrete slab will allow bonding to take place against the concrete slab.. … how to make this critical framing connection for a safe and sturdy deck '' pilot holes the! Cable railings near the garage will be the end of the concrete footer along... Using anchors to attach and anchor to hold the washer onto your wedge anchor if j-bolts are not already.... Project and the results look like a standard paver patio finding inexpensive ways to use the deck near the mandoor.
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