How Many Screws Per Sheet Of Plywood Subfloor

53 screws a sheath 19 2 o c.

How many screws per sheet of plywood subfloor.

I will be using a 3 8 plywood over a 2x6 tg subfloor if it matters. 46 screws a sheath 24 o c. Most construction experts use 3 inch steel screws for plywood subfloors. How many screws needed.

I can t find any instruction or installation guidelines that note using screws. 39 screws a sheath floor opening if there is an opening in your floor enter the sq footage in the floor opening field. Here are nine common subfloor installation mistakes and how to prevent them. You ll want the screw to go about an inch past the plywood into the joist or underlying layer beneath it.

So if your subfloor is 3 4 of an inch thick any screw about 1 3 4 inches long will do the trick. A 4 8 sheet of plywood is 32 ft 2. 800 32 25 sheets. Use 6d common nails spaced 6 apart on edges and 12 apart in the field.

According to table r602 3 1 of international residential code irc subfloor fastener schedule is as follows. 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. Thu oct 25 2007 12 08 pm posts. I have read on this forum that it is possible to utilize screws but i don t understand why all the direction leave out using screws as an option.

If the plywood subfloor you re placing is 5 8 of an inch thick you need a screw about 1 5 8 inches long. Mon dec 24 2007 3 48 am. Is there an advantage to using nails.