Plywood Subfloor Thickness Uk

The thickness needed for subflooring depends on the type of floor that will go on top and the primary purpose for the subfloor.

Plywood subfloor thickness uk. Nominal thickness and actual thickness of plywood. This board will be screwed directly to the joists which have a 400mm spacing but i noticed wickes also do this structural plywood which appears to have greater certification making this suitable for a sub floor. Thinner sheets can also be bent into curved components. Cdx plywood should be a minimum of 7 16 inch thick.

Plywood s many advantages include price lightness and strength. For sub floors we will consider 18mm thickness tongue and groove with dimensions of 600mm x 2400mm. Interestingly the supply of plywood into the uk is extremely inconsistent at present and probably over the last few years. 7 16 15 32 and 1 2 inch thick panels require joists spaced 16 inches on center.

There two plywood thickness. 4mm 1 6in 6mm 1 4in 9mm 2 3in 12mm 1 2in and 18mm 3 4in. 19 32 and 5 8 inch thick. Screws are needed to fix down the new sub floor.

The thicker the ply the less flexible it is. Plywood is the most common type of subflooring. It is also available in different size sheets. Make sure it is screwed and fixed at appropriate points usually a minimum 300mm centres.

Installation chipboard is faster to install as it has tongue and groove. The thicknesses are as follows. Each opposing pair of veneers should be of a similar species and thickness though the central core may be thicker than the surrounding layers. Nominal thickness and actual thickness.

Plywood comes in a variety of thicknesses beginning at 1 8 inch and increasing to 1 inch. The boards are laid lengthwise perpendicular over joists and joined together. Plywood thickness ranges from 0 4mm 100mm. Regardless if you are working with a floating hardwood floor or one that is nailed down and glued to the subfloor the joists need to be covered with at least one sheet of 3 4 inch material.

However if you are trying to add stability and strength to the subfloor look at thicknesses from 15 to 22mm. If you are laying a subfloor over a large area the larger the sheet the quicker you will cover the floor. But the common plywood is 3 2mm 21mm.