Asked by: Yanet Cuba
asked in category: General Last Updated: 15th March, 2020

How do you install plywood subfloor in a bathroom?

  1. mark cut lines on plywood using T square. Mark the Cut Lines.
  2. cut plywood to size with circular saw. Cut the Plywood.
  3. mark floor joist locations on wall. Mark the Joist Locations.
  4. lay plywood in place on floor. Lay the Plywood.
  5. drive deck screws every 8 inches along chalk line. Insert the Deck Screws.

Click to see full answer.


Also asked, what type of plywood is used for bathroom subfloor?

Traditionally, exterior grade plywood has been the subfloor material of choice for many bathroom flooring projects. Plywood is made by gluing alternating layers of wood veneer. CDX plywood (¾”) in particular is used often because it has a high level of resistance to moisture and humidity.

Also Know, how do you redo a bathroom subfloor?

  1. check subfloor to see if areas need to be removed. Remove the Damaged Floor Material.
  2. Add the Support Framing as Needed. Use 2x6 lumber to double or “sister” the existing floor framing and provide a solid base for the new plywood subflooring.
  3. Measure and Cut the Plywood.
  4. secure plywood to joists.

Similarly, it is asked, do I need to glue plywood to subfloor?

On the 3/4" subfloor, you have the right idea. Use subfloor adhesive, and screw 8" at edges, 12" in field. For the 1/2" underlayment, ideally, you want to screw every 6" all across the panel. Adhesive will help you here, as the subfloor plywood will have voids in spots that will not hold a fastener.

How many layers of plywood do you need for a subfloor?

There are several methods, including: Floating subfloor: There are two common methods for this. The first is to lay two layers of 3/8-inch plywood over the slab without fastening or gluing them to the slab. One layer is laid, and the second layer is stapled or glued perpendicularly or diagonally over the top.

38 Related Question Answers Found

How thick should a subfloor be?

How do you waterproof a bathroom subfloor?

How thick should a bathroom subfloor be?


Can you lay tile directly over a plywood subfloor?

How thick should Plywood be for flooring?

How do you fix water damaged subfloor?


Can I put new subfloor over old subfloor?

How do you install a subfloor in a bathroom?

How do I know if my subfloor is rotten?


Will wet subfloor dry out?