How Many Sheets Of Plywood For A Subfloor

Plywood is usually used as subfloor today.

How many sheets of plywood for a subfloor.

Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage. Cdx plywood should be a minimum of 7 16. Plywood is a popular choice for residential and light duty construction and is made from thin sheets of veneer that have been peeled from debarked wood. 1 2 cdx 5 ply 17.

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. Meanwhile osb compacts as many as 50 layers of strands into a single sheet the same thickness as that plywood ensuring a much denser and heavier product throughout. Glue is sprayed between each layer and the sheet is hot pressed. The screw count is a bit high at times but this will allow for losing some.

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. It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common. 800 32 25 sheets. Different plywoods use various materials and methods of manufacture depending on the application for which they re intended.

If you have an older subfloor constructed of multiple slats rather than large sheets of plywood you can insert your straight edge between the slats. This pattern results in added strength and stability that resists shrinkage and expansion. My current subfloor appears to be 3 4 plywood picture attached. The stapler saves a lot of time.

Cdx plywood is traditional wood plywood made from thin layers of lumber known as veneers. This means that for 7 16 underlayment and 23 32 subfloor the longest fastener you can use is 1 1 8. But combined with other methods that measure the finish floor you can get a fairly accurate reading of total floor thickness. These thin layers also called plies are glued together in alternating perpendicular directions to create a cross graining pattern.

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. You want to choose fasteners that will not penetrate the bottom of the subfloor. A 4 8 sheet of plywood is 32 ft 2. A subfloor is a wooden structural substrate to which durable finished flooring is attached.

This method only measures subfloor thickness.