How To Install Sill Plate On Concrete Slab


How do you attach a sill plate to a concrete slab?

  • Position the sill plate in place on the concrete slab or foundation.
  • Drill holes through both the sill plate and into the concrete, using a concrete masonry drill-bit.
  • Insert one wedge anchor bolt set into each drilled hole and hammer it into place with a hammer.
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    How do you attach a sill plate to a foundation?

    One method for fastening sill plates is the use of cast-in-place anchors, commonly referred to as "J" Bolts. "J" bolts are anchors in the shape of the letter J with threads on the end opposite of the bent end. These bolts are set in place before the concrete is poured. via

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    What goes under the sill plate?

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  • Lay a continuous layer of 1/4-inch foam gasket or similar moisture and air barrier on top of the concrete slab before applying sill plates.
  • Apply a bead of caulk along the inside perimeter where the sill plate meets the concrete slab, if desired for additional air-sealing.
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    Should I caulk sill plate?

    The seam between the sill plate and the rim joist above is sealed with caulk. The entire sill plate-rim joist area can be further air sealed and insulated with spray foam, but sill plate joints and seams with rim joists should first be caulked. via

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    How do you attach something to concrete without drilling?

    If you are willing to make holes in the concrete but do not want to buy the particular drill bit needed, then the simplest solution is to get nails for your project. Standard nails will not work on concrete, but some nails are made specifically for nailing wood to concrete. Cut nails will also work for this as well. via

    How do floor joists attach to sill plate?

    1 Answer. The floor joists are secured to the sill joists by installing wall sheathing (plywood or OSB board) that laps from the sill plate up the wall to the double top plate. When the sheathing is nailed to the sill plates, rim joists, studs and double top plate, then all the components are secured in place. via

    What is the maximum distance between foundation anchor bolts for sill plates?

    number of anchor bolts required

    Sill plates supporting floor systems, on walls having 7 feet (2,135 mm) or more of unbalanced fill, shall be anchored to the foundation with bolts spaced not more than 12 inches (305 mm) from corners and a maximum of 4 feet (1,219 mm) on center. via

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    Can you put pressure treated wood directly on concrete?

    Pressure-treated wood is required whenever you attach framing lumber or furring strips directly to concrete or other exterior masonry walls below grade. Note that this requirement is only for exterior walls, as these may wick moisture onto the lumber. via

    Do floor joists sit on the sill plate?

    The joists themselves should have at least 1-1/2 inches of good bearing on the sill plate, or 3 inches on masonry. Ideally, if a load-bearing wall runs parallel to floor joists, then it should sit directly over a beam or a joist supported by a load-bearing wall below. via

    Can you drill through sill plate?

    You don't have to drill through the sill, you can drill above the sill through the sheathing. A rim joist is the where the floor joists sit on top of the sill calling it a rim joist/box and you put the decking on top of that and the walls go on top of the decking. via

    What do I put under my bottom plate when framing a basement?

    Place your sill gasket under the bottom plate on the floor, lining it up with the snapped line. Be sure you are leaving at least a ½” space between the studs and the foundation wall. We want to avoid direct contact of a wood wall with concrete. Your top and bottom plate should be perfectly aligned. via

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