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Deck slab in building

Should I Build a Low Level Deck Over an Existing Concrete Slab or Install Paver Stones?

Your old patio can be cracked or cratered. If you want to make some change of this concrete patio, you can just build a raised deck over it. It is not an impossible work for you. However, a concrete slab that is damaged severely cannot be fixed properly. So, the best solution to make the patio beautiful is to build a deck. It is also less expensive. You can do this yourself without calling a contractor. In this article, I am going to show you the easier way how to build a raised deck over a concrete patio.

Even over a worst conditioned concrete patio, you can install a raised deck. But beware of some situations and then start your work.

Read more: best concrete stain. It is an easy part of the process. You have to clean the surface of the concrete slab. If you have an old deck, you have to clean the wood skirt, bolts and railing. If there is any crack on the concrete, you have to repair it. It will be good for your new decking. Read more: best roof cleaner.

To make a deck over a concrete patio will take two or one weekends. A big one can take more days. Besides, different pattern form will take more hours to complete the job. Generally, it depends on the condition of the patio surface.For extra support, you can tie the deck into your existing ceiling joists by simply running two support joists from the edge of the deck to a hole in the roof where you screw the ceiling joists into the support.

deck slab in building

Do not build your deck too high off of the ground. As your are mounting the deck on wooden support posts, the posts will be prone to twisting if they are too tall. Are you looking for a way to add entertaining space to your existing home? Maybe you want a private nook overlooking the mountains or lake that are situated next to your home?

Regardless of your reason for wanting to add a second story deck to your home, it may seem a daunting or insurmountable task if your carpentry skills are limited. With a little planning, you can build a functional beautiful deck on the second story of your house.

Pick the location for your second story deck based on obstacles at ground level, convenient access, and second story entrances. Your location will also determine the dimensions of the deck itself, so take measurements of the length and width of the chosen area and then design your deck frame around these dimensions. Layout the length and width dimensions next to the house in the location of the future deck and mark the four corners and the midpoint of each side.

These will be the locations of your 6 inch by 6 inch support posts. Use the auger to drill 4 foot deep holes in which to slip the bottom of the 6 inch by 6 inch posts. It is up to you how high your deck extends onto the second story, however a typical height is feet. Fill each hole partway up with DRY Quikrete concrete mix and then drop the posts in allowing the desired height level of support post extend above ground level. Use a level to make sure each post is plumb and then fill in around the posts with soil and the remaining concrete.

Let this setup for at least 24 hours before working on the posts. Build the frame of the deck on the ground by bolting four boards into a square or rectangle the size of the projected deck.

Install crosspieces throughout the frame every two feet to insure a strong base on which to lay your flooring. Using volunteers or a small crane, hoist the boxed in frame on top of your support posts and attach by screwing the lag screws through the frame into the support posts.

Build the deck flooring by laying down the treated decking boards parallel to one another on top of the elevated box frame and screwing down tight with the wood screws. Install the railing kit according to the manufacturer's instructions and determine where a staircase will be installed. Leave the area for the staircase free of railing.

Purchase two staircase runners of the proper height and size for your deck application. Use lag screws to mount the runners to the deck and let the bottom portion of the runners sit on a concrete pad on the ground.

Cut left over decking boards into steps for your staircase and mount the steps using wood screws. Start entertaining! Nathaniel Miller is a technical writer for an environmental division of Microbac Laboratories, Inc.Source : California Redwood Association. What: A freestanding deck. Excellent, clear instructions and detailed drawings are included in this download for a freestanding deck from the California Redwood Association. The deck is a standard 8' x 10' and recommended knotty redwood garden grades to use in this project are Construction Common or Deck Common.

Source: DecksGo. What: If you are a beginner at this do-it-yourself, thing, a starter deck is a pretty straightforward project to kick off with. Plans downloaded from DecksGo share construction tips and techniques for a basic rectangular deck with concrete footings and the Titan Deck Foot Anchor, which is sold through the website. Sizes for this particular project range from 14 x 10 feet to 14 x 20 feet. Source : Simpson Strong-Tie. What : Simpson Strong-Tie, the company that makes building products like fasteners, wood connectors, and integrated component systems offers deck-building plans on its website.

What : A wood deck built over an existing concrete slab or patio. A plain concrete slab in your backyard can be an eyesore, especially if it's cracked, is in a weird location or doesn't tie-in with the rest of the yard. One of the easiest and results-oriented ways to deal with that unsightly slab is to build a deck on top. The concrete is a solid raised foundation upon which to build a beautiful redwood deck.

Source : TimberTech. The online 3D Deck Designer tool allows you to play around with the size, shape, and color of your deck, along with adding details like stairs, levels, and railings.

To make it work, you will need the approximate shape and dimensions of your desired deck before creating in the Deck Designer tool. Using precise dimensions will improve the accuracy of these lists. Source : American Wood Council. What : The Prescriptive Residential Wood Deck Construction Guide is a comprehensive guide to basic deck building with minimum code standards. The AWC walks you through the requirements and limitations of constructing a wood deck and explains things in detail along the way.

You'll learn about beam sizes and assembly, joist-to-beam connectionswood species and decay resistance, post requirements, and much more. The plan, which can be adapted to any size deck, includes charts and diagrams, including an excellent deck framing plan. What : SmartDraw offers a free one-week trial to explore and experiment. You can design a deck, like this Deck No. Are you proficient at using Microsoft Office?

Beginning Your Deck-Building Project. Continue to 2 of 8 below. California Redwood Freestanding Deck. The plans also allow you to attach the deck to a house and include a railing.

Continue to 3 of 8 below. Source: DecksGo What: If you are a beginner at this do-it-yourself, thing, a starter deck is a pretty straightforward project to kick off with. Continue to 4 of 8 below. Simpson Strong-Tie. Source : Simpson Strong-Tie What : Simpson Strong-Tie, the company that makes building products like fasteners, wood connectors, and integrated component systems offers deck-building plans on its website. Continue to 5 of 8 below.

Deck Over Concrete Slab.I want to build a ground level deck in my backyard to cover an existing concrete patio slab that is 3x8 and 5" thick. I attached pictures to give you a better idea of what my current patio and the space restrictions look like. I want to build a floating 18x11 deck that is not connected to the ledger. I live in Southern California so I don't have to worry about placing the footing below the frost lines or anything like that. Editor's Comments The dimensions you described makes building a floating deck very challenging.

My question then is do you prefer to have a wood deck? Or have you thought about using paver stones? Due to your space restrictions I think it would be easiest to use paver stones. But, if you wish to use wood or composite, it is also possible. Each approach is described below to help you decide what is best for your space. Building a Wood or Composite Deck If you choose to build a wood or composite deck you will need to remove the concrete slab patio with a jack hammer.

Why Remove the Concrete Slab? Building on top of the concrete slab patio is not a good idea for a few reasons. First, laying deck boards on top of the existing patio without any joists to secure it from below will be free to move, twist, or just feel bouncy as you walk on it. Second, if you ever have any rain not much I know in Southern California or moisture it will sit there under the boards and it will cause problems.

The wood boards might be susceptible to warping or rotting because of moisture underneath. Bottom line, laying deck boards on top of your existing patio is not functional and is not a good idea. The clearance is far too low to have any kind of joist material below the decking boards.

This means you will be laying decking boards literally on top of the concrete pad, resulting in potential problems. If you remove the existing patio or concrete slab, you will have an added 5" to build your deck! The added 5" makes building a wood deck possible - if you do it right along with a little bit of additional work. There are three common foundations if you choose to build a wooden deck.

For your convenience, each approach is described below. Using the Deck Block One option is to use a deck block for the foundation of your deck. While this is the cheapest option, it is not ideal. You will have to use quite a few of the blocks given their base size generally less than 1 sqft. They also do not have grooves large enough to rest a double 2x8 or 2x6 beam.

This means you will likely have to set a 4x4 post in them and then attach a beam over top of the post. All of this will increase the elevation, something you cannot afford with your space restrictions. If you use deck blocks to support 2x6 joists at various locations, you have to have the elevations just right or the joist will rest on the highest deck block and not the others.

Or if your deck blocks are too low the joist will be suspended and over a longer distance. This can result in a bouncy sensation as you walk on it.Have you dreamed of entertaining guests outdoors?

Ground level decks also called a floating deck or a platform deck are decks that are close to the ground. Easier to build can also mean lower costs than an elevated deck. Some of the most expensive components for a deck are railings and stairs. Since a ground level deck does not require safety railings or stairs to access, the cost to build one is comparatively lower than building an elevated deck in terms of both materials and labor.

Ground level decks set outdoor living spaces apart and give you a beautiful area to add chairs, potted plants, and even a grill for entertaining. It provides you with a level of space to enjoy your property and time outdoors. However, there are a few things to know before you start building your own ground level deck. As with all DIY projects, the success is in the planning.

There are many different types of ground level decks, including decks that require footings and those that are attached to your home. The beauty of a ground level deck lies within its simplicity. You can choose a pretty area of your yard to build your deck and admire the view.

Or, you can also dress it up with pavers back to your house if you want a more polished, elegant look. The choice is up to you and your own personal backyard aesthetic. However, you will need to consider drainage below your deck.

Does the ground slope for water run-off? If the bottom of your deck frame is less than 6" above the ground or partially buried, you should use pressure-treated wood that is rated for ground contact. This type of wood has a higher level of preservative that guards the wood against rot and decay. Do you want a step or two to your platform deck? The ground under a platform deck will get wet.

Sustained dampness is the enemy of a ground level deck since it will lead to mold, rot and decay. Make sure you build your deck high enough for ventilation so the ground can dry out.

That way, your deck will last longer. Generally, if a deck is less than 12 inches above the ground, the perimeter of the deck must be open for free air to flow beneath the deck. You can also place your structure on top of gravel for better drainage. These beams will serve as your ground level deck framing.

Next, measure diagonally and tap the beams to line them up. You can use pressure-treated shims below the beams, if needed, to keep them level. You may want to add additional gravel to level out the ground. Once your beams are level, attach angle brackets at the corners of the deck where joists and beams meet.

deck slab in building

These will add additional support at the corners of your ground level deck. Once again, use your string level to assess the evenness of your terrain and deck. Using joist hangers, fasten the joists into the beam faces at regular intervals.Either way, she offers some good ideas on how to build a floating deck similar to hers in your backyard, as well as some building and planning tips that come from her experience with this project.

Wanting to add some functionality and much needed curb appeal to our backyard, we decided to build an island or floating deck in between our existing trees. The landscape, or lack there of, provided a blank slate to create a backyard oasis to relax on. Our original plan was to build the one-level, step-up deck in between the four trees, but after trying to maneuver around the exposed roots, we learned our best solution was to shift the deck over and have the deck encompass one of our existing trees.

This made our original straight forward square deck a little more complicated, but not too much. We also considered the size and materials for the deck. We knew we wanted to use Veranda Composite Decking as the deck floor. This meant we would need more support to carry the weight, as well as the inherit flexibility these boards have. We also wanted to have as little waste as possible and make fewer cuts!

This made life so much easier!!

deck slab in building

We used concrete deck blocks as our base… 52 of them for the extra support. Those suckers are heavy. Once we determined our ideal placement, we leveled out our square exterior frame.

Think real life Lincoln Logs. To ensure your initial exterior frame is perfectly square, measure diagonally from corner to corner. Both of your measurements should be the same. Also, place a large level on all corners to insure you are level before continuing to the interior supports. The extra effort up front will guarantee a level and secure deck in the end.

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We marked out our interior support beams at every 16 inches and marked them on both sides of the frame. This also helped us to line up and lay out our interior deck footings. We laid them out as equally as possible, but we did have to shift some of them due to the exposed roots. We attached our interior supports using deck screws from the outside of the frame into the supports. We worked from the edges into the center and left the blocking of the tree for last knowing that would require more thought.

Wanting to create a frame around our tree, making sure we left plenty of room for it to grow, we placed perpendicular supports off of our interior support beams making sure to have them lined up with four of the concrete footings. We screwed them in and created an interior box to frame the tree. We then followed the shape of the tree by adding some angular blocking as well. Each tree is different, so just be sure to account for the shape and growth rate when considering this as an option.

The next weekend we began to lay the top decking boards. These composite boards are heavy and extremely flexible, so be sure to have help when moving these around. Your deck boards will lay the opposite direction over your support beams for added support. No trimming necessary.Join us to get great money-saving tips, cool ideas, and valuable advice from home improvement expert Don Vandervort!

For information on installing a new patio, see Pouring a Concrete Slab. If you are building an overhead to cover an existing patio, you must first determine if local codes allow setting it directly on the slab and, if so, is the concrete thick enough to support the weight. Otherwise, you will have to create original footings for the overhead. Post anchor is designed to be fastened to a concrete slab. To secure an overhead to an already-existing slab, you must place each post in a post anchor.

Standard anchors work with rough and surfaced 4-by-4, 4-by-6, and 6-by-6 posts; any other size anchor will have to be specially ordered.

After inserting the bolt, secure the post anchor by adding a washer and nut and tightening with a wrench. Cut the end of the post square, sit it in the base, predrill holes in the post, and then nail the anchor to the post. Another way to fasten the post anchor is by securing a short piece of threaded rod in a hole with epoxy cement. Start by drilling a hole slightly larger than the threaded rod. Check local building code to see if you can attach a patio roof directly to your deck. Blow out the dust, fill the hole with epoxy, and insert the rod to the required depth.

Let the epoxy set leaving it overnight will assure that it is rock solidand then add the anchor bolt, anchor, washer, and nut and tighten. Or, you can lag-screw through post bases and decking into the top of a deck joist or beam. This steel and polycarbonate overhead is entirely supported by house walls on both sides.

He has also authored, edited, or produced more than 30 books in the home improvement space.

Build a Concrete Slab

Read more…. HomeTips articles contain links to Amazon. How often? Only every month or two. Unsubscribe anytime! In This Article:. California Redwood Association. Don Vandervort.


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