How Far From The Wall Should You Start Your Concrete
Sleeper retaining wall posts come in two varieties steel galvanised h beams or a vertical sleepers.
How far from the wall should you start your concrete. Miscalculate your construction plans and you could end up with a weak wall that risks bulging or worse collapsing altogether. For example if your wall is going to be 800mm high the holes for your posts should be 500mm deep. Time now to concrete your posts into position. For 3 4 inch thick drywall use a 1 3 8 inch screws.
This pressure goes out and up the length of the anchor forming what is commonly called a cone of concrete as it is cone shaped in appearance. If you ve already installed drywall while letting it rest on the floor all is not lost but you have your work cut out for you. Drywall guns have adjustable clutches that allow you to control the depth of the screw bit. Exterior wall on slab videos.
Most jurisdictions require a 4 mil plastic sheet vapor barrier for basement walls against concrete. Here are two videos that do a good job of showing you a better way to build. Breaking the paper ruins the strength of the attachment. So there is enough gap for air to flow.
Or you can leave a 4 inch gap between the studs and concrete wall and probably get away with it. For just this reason retaining walls taller than four feet should. One of the most popular questions asked by new framers is should i stand the wall up sheathe it or should i sheathe it while it is on the ground. If you are using 1 2 inch thick drywall use 1 1 2 inch long screws or nails.
Determine the maximum spacing between joints in feet by multiplying the planned concrete thickness in inches by 2 5. Use a mechanical vibrator when pouring concrete foundations to settle the concrete and eliminate any air pockets which might weaken it. Using sleepers as your posts costs about a third of the price of h beams. That is if the studs are going to touch the concrete wall.
Concrete fasteners should not be set closer than 10 anchor diameters from each other. Place rebar horizontally and vertically in both. For example if you re creating a sidewalk that is 4 inches deep you d. By far large i like doing it on the ground as it is much easier to get everything lined up glued nailed properly before raising it up.
Mechanical type concrete anchors exert outward pressure against the wall of the hole in concrete. Start the footings with a base layer of tightly compacted gravel.