Always dispose of them safely at your local recycling or waste disposal centre. Offcuts of treated timber should never be burned as they will release toxins into the air. More than just a deck foundation, DEKO is a versatile utility block with endless applications to make completing your D.I.Y. Make sure that you wear appropriate protective clothing, such as gloves, a face mask, or safety goggles, when cutting or sawing timber, applying preservatives or other timber treatments, or using postcrete. Place the board in the area of least through traffic and begin laying your deck boards from the opposite end. If you do need to cut a decking board lengthways then do it either with a handsaw or a circular saw. When drilling, mark out all pilot holes to ensure your fixings are as accurate as possible. When sawing, use the 90-degree guide marker on your saw, or a set square, to make accurate cuts, and sand the cut ends to remove splinters. A residential structural engineer has the training and skills to determine the spacing. This will ensure a hard wearing, long lasting deck. The deck blocks might end up being 6 or 8 feet apart. Because of the size and weight of the timbers and the frame, it’s always easier and safer if you can get somebody to help you.Īs you’ll be digging post holes, it’s worth hiring a CAT (Cable Avoidance Tool) to ensure your site is free from hidden pipes and cables.Īlways use structural treated timber and screws specifically designed for the job and treat all cut surfaces and drill holes with two coats of preservative. Try to plan your deck to fit only whole boards, to avoid having to awkwardly cut a board lengthways to fill a gap.īuilding a raised deck does involve planning, and a lot of moving, lifting and cutting heavy timber. You need an expansion gap of 5-8mm between the boards lengthways. The gap between each individual deck board allows for rainwater runoff, plus the natural expansion and contraction of the wood throughout its life. What should the gap between decking boards be?Įxpansion gaps are essential when installing decking. The required expansion gap for your deck boards.bottom plate was fastened to a steel plate embedded in a concrete block on the ground. The size (length and width) of deck boards you’re using The width of the bridge deck model in the main span is 0.273 m.Are there any existing features to work around such as trees and posts?Ĭarefully plan your decking layout and try to limit cutting and wastage.Is the ground dry underfoot? Wet or boggy ground isn’t suitable for decking.How much sun will the decking get, and what’s the view like from the site?.Is the ground level or does it have a noticeable slope? With good planning and construction, even steeper slopes can be suitable for a raised deck.There are a few other factors to think about when planning your decking: It’s advisable to check with your local planning authority before you start. Lay out the block, making sure to leave a 3/8 inch gap between the blocks to allow for the vertical mortar joints (i.e., a typical 8x8x16 block is actually 15-5. Local planning laws can be complex and vary from place to place. You may require planning permission for your raised deck. If in doubt then be conservative – you can always extend in the future. Are you installing it to complement other garden features such as paving or turf? Raised decking can be quite a sizable structure. The four blocks should be 2 feet apart for a total span of 6 feet (each beam will overhang the outermost blocks by 1-foot). Mark the 12 locations for each of the concrete deck blocks: three rows, each row containing four blocks. We’ll now look at the potential problems and reasons not to use shed foundation blocks.Consider how big you need the decking to be when you’re deciding a location. Wrap twine around the stakes to create the perimeter. This is especially true for larger sheds. The problem with using cinder blocks is that it can create problems with your storage building down the road. (Note: leveling the ground for a shed is a better solution) All you need to do is make sure the installer has access to a stack of inexpensive cinder blocks. After all, there’s little preparation required if your site is already fairly level. Installing and leveling your shed on cinder blocks might seem like the easiest solution for shed site preparation. Now we’ll look at a shed foundation type that we don’t recommend: shed foundation blocks. We’ve already outlined our preferred shed foundation in this article and given an overview of all shed foundation options here. If you’re preparing to have your shed installed, you’re probably wondering whether you need a foundation for a shed and, if so, what kind of foundation is best for your shed.
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