What is best subfloor for bathroom?

plywood subfloor





Pressure treated 3/4″ plywood subfloor is the best subfloor material for bathrooms. Pressure treated plywood is water resistant and will withstand the humid, damp bathroom environment much better than untreated plywood or OSB.

How do you replace a rotted bathroom subfloor?

Quote from the video:
Quote from Youtube video: First thing I need to do is find out which way my joists are running. I want to reach in and I can feel the joist this. Way.

How do you waterproof a bathroom subfloor?

Quote from the video:
Quote from Youtube video: Super easy to use you literally just need a paintbrush. And a paint roller to apply this to a concrete subfloor. But there is one critical step that some folks forget.

How do I know if my subfloor is ruined?

9 Common Signs of Subfloor Damage

  1. Your floors are uneven or sunken in parts. …
  2. Your floorboards squeak – loudly. …
  3. The room smells musty. …
  4. Your floors shift or bounce when you walk on them. …
  5. Your toilet is rocking or loose. …
  6. Your tile flooring has cracked. …
  7. Your hardwood floor is cupping. …
  8. Your linoleum floor is bubbling up.

How do you fix a sinking bathroom floor?





Quote from the video:
Quote from Youtube video: Once you you start by taking the toilet ow and the sink. Out. You need to start you know taking all the covering now in this case was like some sort of a vinyl tile or linoleum.

Should I seal my bathroom subfloor?

Every type of bathroom floor, including linoleum and other moisture-resistant materials, should be completely sealed around the edges where it meets the wall, bathtub, toilet, vanity and any other permanent fixtures.

How do you fix water damaged subfloor?

How to Fix a Water-Damaged Subfloor: Your 8-Step DIY Guide

  1. Start by Stopping the Water. …
  2. Expose the Subflooring. …
  3. Make Your Mark. …
  4. Carefully Cut Subflooring. …
  5. Remove Damaged Materials. …
  6. Speed Up the Drying Process. …
  7. Reinforce Floor Joists. …
  8. Install Your New Subflooring.


How hard is it to replace sub flooring?



The subfloor usually runs in a continuous sheet under all the walls. It can’t be removed easily. The underlayment, however, was put in after the walls were up, so it fits each room and is tailored to the type of floor covering being used. The underlayment, therefore, is easy to pull up and remove.

How much does it cost to replace plywood subfloor?

The average cost to replace or repair a plywood subfloor in a 306-square-foot room costs $550, or between $500 and $600. The average cost to install a new plywood subfloor is $620, or between $570 and $720. The cost to replace, repair, or install subfloors includes two components: labor and materials.

How much does it cost to repair a subfloor in a bathroom?

The national cost range for replacing a subfloor is between $600 and $2,400. Most homeowners pay around $1,500 for a 200 sq. ft. area in a kitchen or living room using OSB board.



Price to Replace Subfloor by Location.

Location Average Cost to Replace Subfloor (Labor Included)
Bathroom (35 – 75 sq.ft.) $400 – $750

Can I put new subfloor over old subfloor?



Install a layer of at least ½” or preferably 5/8” ply over the existing planks. This is particularly important if your old sub floor has lumps and bumps in it. If you don’t respect this thickness of ply, then you’re highly likely to see rises and falls in your new flooring.