For safety's sake, the vertical supports, or stringers, of a wooden staircase should be anchored at both the top and the bottom. When the stairs lead to a concrete floor, special anchors are used to attach the wood stairway to the floor. These concrete anchor bolts provide a secure hold when the metal sleeve expands into the hole as the bolt is tightened.
Instructions
1. Drill four evenly spaced holes across the top of the anchor plate, secured between the left and right stringer. Drill the holes large enough to accommodate the threaded shafts on anchor sleeve bolts.
2. Position the staircase and mark the holes you drilled into the anchor plate onto the concrete floor. If possible, remove the staircase while you work. Otherwise, prop the staircase off the floor so you can access the concrete floor with a drill. Drill holes at each marked location using a masonry drill bit with the same diameter as the concrete anchor sleeves. Use the hammer drill to drill the holes approximately ½ inch deeper than the length of the anchor sleeve bolts. Vacuum the debris from the holes with a vacuum cleaner or use compressed air.
3. Drive the concrete sleeve anchors into the concrete, using a rubber mallet, until the top of the sleeves rest flush with the surface of the concrete. Position the stairs over the anchors, lining up the holes in the anchor plate with the anchors in the concrete floor. Thread the anchor sleeve bolts into the anchors and tighten them with a socket and ratchet.
Related posts
A hammer drill and carbide-tipped drill bit make it easy to put anchors in concrete walls.Hanging shelves, tool racks, storage containers or furring strips on a concrete wall in your garage or bas...
Installing concrete sleeve anchors is easy to do with the right tools.Concrete is one of the most used construction materials around the world. It can be formed into an immense amount of shapes an...
Concrete StepsConcrete stairs are framed as a box or mold for the concrete. The frame is generally constructed of 2-inch nominal framing lumber cut to size, leveled, braced and reinforced in place...
Installing hardwood on concrete usually requires a buffer between the two materials to prevent moisture seepage.Many home owners choose to install hardwood flooring in their home because it adds a...
If you are going to tile or otherwise cover a concrete floor in your home and the surface is generally in good shape but contains some dips, depressions, holes or cracks, you need to get it filled...
