Screws Per Sheet Of Sub Floor

I ve read for nailing the underlayment to do one nail every foot in the interior of the plywood and around the perimeter at 2.

Screws per sheet of sub floor.

Man that s a lot of screws. 4 feet equals 48 inches which you then divide by 8 to determine that you ll need six nails where the board comes in contact with a truss. Drill screws through the backerboard sheets every 6 to 8 inches. According to table r602 3 1 of international residential code irc subfloor fastener schedule is as follows.

Use a solvent based glue that meets astm d3498 performance standards. The first two of these come with a nice yellow zinc finish while the hillman group screws are unassuming yet tough in basic black. Apply glue per manufacturer s specifications. Position the screws at least 1 2 inch but no more than 2 inches from the edge of the sheet.

Drive the screws in so that the heads are slightly below the surface of the backerboard sheet. Push the full sheet tightly against the small section of plywood and the. Use 6d common nails spaced 6 apart on edges and 12 apart in the field. I ve done a few 4x8 planks with screws at that frequency.

The screw count is a bit high at times but this will allow for losing some. Nail spacing for sheets of osb and plywood is 8 inches per nail. Be sure the joists are dry and free of dirt before applying. This means that you ll need to use six nails per each truss that runs under the sheathing because each sheet measures 4 feet wide by 8 feet long.

Am i on the right track. According to construction and renovation experts some of the best screws for subfloor include the senco 08200y screws the simpson strong tie screws and the hillman group 48248 subfloor screws. Attach the smaller piece to the subfloor with a 1 inch wood screw every six inches in each direction using a power drill.