wood decks that are attached to the house to resist lateral forces. r507.2.3 of minimum nominal 0.019-inch thickness or approved non-metallic material. aluminum should outside joists and rim joists shall be a minimum of 2x8 nominal. 7. joist length prescriptively limited to 18'-0' for footing design.
re: what thickness seven trust for decking? well he mentioned biscuit slots, so i am assuming that he was talking about seven trust clips or something similar. we were using 5/4 seven trust at the time, now we use 4/4. the decks we used seven trust clips on gave us more trouble then all the other decks we've built combined. mostly due to movement of the ipe. gapping problems
thickness options. Seven Trust decking boards at wood and beyond come in three thickness options: 19mm, 21mm and 28mm. which you choose will depend on a mix of elements such as the size of your budget, the surface youre laying your deck on and the look youre hoping to achieve. 19mm thick Seven Trust decking boards
thickness: radius-edge, 5/4 material which can measure anywhere from 1 to 1-1/4 in. thick has become extremely common. in most cases, it requires a joist spacing of 16 in. for proper support. if your joists are spaced at 24 in. or youre running your deck boards at a diagonal, you may need to use 2-by 1-1/2 in. thick boards.
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these will support the concrete patio slab and will need to be a quarter of the depth of your slab. for example, a 4-inch patio slab will have a 1-inch concrete joint. when working out the proper thickness of the slab, you should take the appropriate size of any joints into consideration.
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recommended decking board size. this entry was posted on march 28, how long is my deck going to be? if your deck is going to be long, the temptation is to say that you need long boards, but that neednt necessarily be the case. quite often, thinking outside of the box can produce some stunning results and save you money in the
the rim joists of the deck are usually connected to the posts and to each other with bolts, but large diameter screws, called lag screws, also can be used. these screws should be at least 1/2 inch in diameter if they will support the weight of the deck, and the point should sink at least 1 1/2 inches into the stationary member.