How Many Screws Per 4x8 Sheet Subfloor

For example if the area to be covered in plywood is 800 ft 2 then 25 sheets of plywood will be needed to cover it.

How many screws per 4x8 sheet subfloor.

It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common. That s if the panel is going on a wall. This simple sub floor materials calculator will provide you with the lineal feet of floor joist needed the number of sheaths to cover the floor and how much glue and how many screws it takes to attach the sheathing to the joist. Divide by the total square footage by the square footage of a sheet of plywood to find the number of sheets required to cover the space.

800 32 25 sheets. The screw count is a bit high at times but this will allow for losing some. Whether you screw nail or staple your 3 8ths underlayment depends completely upon what flooring product you are planning to put over it. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides.

If it s going on a ceiling it ll take about 36 screws. The purpose of an underlayment for vinyl is to have a glass smooth surface to glue to 1 4 ply is the industry standard whereas an underlayment for ceramic tile is to add strength and 3 8ths isn t thick. Stagger adjacent rows of panels by two joists. According to table r602 3 1 of international residential code irc subfloor fastener schedule is as follows.

Nail the panels with 10d common nails or 10 2 1 2 inch wood screws spaced 6 inches apart along the edges and 12 inches apart in the middle. In standard home construction about 28 screws are needed to properly attach a 4 by 8 foot piece of drywall.