Readers ask: How To Level Plywood Subfloor For Laminate?

How do you level an uneven subfloor for laminate flooring?

Mix up some of the self-leveling compound in a bucket with the drill and paddle until you achieve a thick, creamy, yet pourable mixture. Pour this out of the bucket into the low spots of the floor. Use the metal trowel to push the mixture across the width of the low spot.

How do you level a wood floor before laying laminate?

Vacuum the floor to remove all dust and debris. Apply floor leveling compound to low areas or dips using a trowel. Feather the edges of the patched area until they are even with the surrounding surface. Wait for the patch to dry completely before you begin laminate installation.

Can you lay laminate on an uneven floor?

You should not put laminate on an uneven floor. If there are bumps or dips that are more than 3/16 of an inch in size, you should not lay laminate until the floor has been levelled. Laminate that is installed on an uneven floor will settle into the uneven surfaces. This will affect the quality of the final product.

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How do you fix uneven plywood subfloor?

Here are some things to consider when your subfloor is uneven.

  1. Self-Leveling Compound. When you are dealing with uneven floors, one option that you have is to use self-leveling compound.
  2. Plywood. Another option that you could utilize is installing plywood on top of the old subfloor.

How flat does subfloor need to be for laminate?

Most manufacturers recommend that the floor be flat to within 3/16” in a 10 ft. radius. These measurements are consistent with most other types of floor coverings. On floating floors, vertical movement needs to be kept to a minimum.

How do you fix low spots under laminate flooring?

For quick repairs of soft spots in your laminate floor use an air inflation needle or a syringe (used to blow up sports balls) on a can of spray foam. 1. Attach an air inflation needle as an extension onto a can of spray foam. Use the kind of foam that’s used for filling cracks.

Do you need a moisture barrier for laminate flooring on plywood?

Moisture protection will not have any benefit to laminate flooring on plywood as most plywood subfloors are usually installed on the main or second level of a house. If not, an underlayment with vapor barrier will block moisture from your flooring but not the plywood subfloor enabling rot.

How do I know if my floor is level before laying laminate?

How to Determine If a Floor Is Level

  1. Lay a 4- to 6-foot beam level on your floor.
  2. Measure any gap that appears between the floor and the level.
  3. Mark any areas of the floor that are higher than 1/8 inch along the floor.
  4. Slowly slide the level over the floor to check each area of the subfloor.
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What is the best subfloor for laminate?

The appropriate types of subfloors for laminate flooring include:

  • Exterior grade plywood.
  • OSB board.
  • Concrete (that is at least one month old)
  • Existing wood that is not adhered to concrete.
  • Vinyl that is not glued down to another subfloor.
  • Ceramic.
  • Terrazzo.
  • Particle board.

Why is my laminate floor not laying flat?

This is a serious problem because it usually means the boards are damaged and need to be replaced. Installers avoid it by laying a moisture barrier between the laminate and the subfloor.

Do you nail or screw subfloor?

Using code-approved screws rather than nails is the best option for avoiding movement. If using nails for subfloor installation, stick with ring-shank nails; smooth nails may withdraw easier, leading to squeaks.

How do you fix an uneven subfloor?

For concrete slabs: If there are only a few problem areas in the concrete, you can mechanically flatten them by grinding, bead-blasting, abrading, or using a patching compound. If the entire slab is uneven, you may have to use a self-leveling concrete compound to smooth it out.

Can you use thinset to level a plywood floor?

Well, the answer is actually no. Mortars cannot be used to level or patch a floor – ever! The most versatile self-leveler is Novoplan 2 Plus, a high-strength, cement-based underlayment and repair mix for use over interior concrete, plywood and other approved floor surfaces.

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