Installing CDX Plywood for Underlayment for Vinyl or Laminate Flooring

When installing CDX Plywood subflooring, screw the subfloor into the joists.

1. Use as thick a CDX Plywood subflooring material as you can, or you can find. This will be important when moving on to the grout and tile work.

2. Stiffen the floor to ensure that the new subfloor will be strong than the previous flooring.

3. Nails may not be strong enough for installation and may pop out. Use a ring shank nail, and it is basically a screw.

4. Put down a layer of CDX plywood, as an isolation membrane and to protect the tile from cracking. If necessary, CDX plywood is a bit expensive but worth it if you are looking for a quality job. You can staple or nail for installation.

5. Another method might be to screw the CDX Plywood or cement board, before doing any of the actual flooring work.