What should I put down before installing hardwood floors?

Author: Willa Abshire  |  Last update: Thursday, May 28, 2026

Select an underlayment suitable for your wood flooring type. The underlayment can provide a moisture barrier, sound insulation, and cushioning. The moisture barrier is of utmost importance, as concrete will naturally emit moisture in the form of vapor.

What do you put down before hardwood floors?

Simply put, underlayment is a layer of material between your subfloor and your floor. While some flooring comes with the underlayment attached, others will require you to install a separate underlayment. Most of the time, underlayment consists of rubber, cork, foam, or felt.

What to do before installing hardwood floors?

These are the common steps to take when prepping for hardwood:
  1. Start by removing the baseboards in the room where your install will take place.
  2. Make sure your subfloor is level and smooth. ...
  3. Mark the walls to show the location of the floor joists.
  4. Cover the floor with underlayment or.

What goes down before wood flooring?

Use an underlayment or moisture barrier to cover the floor before adding the hardwood. These offer benefits including sound dampening and protection against spills.

What should I put between subfloor and hardwood?

Underlayment is a thin layer of padding—usually foam, rubber, felt, or similar material—placed beneath hardwood floors. It serves multiple purposes, the biggest of which is moisture protection.

Determining the direction to lay/install Hardwood, Laminate, or Luxury Vinyl Plank flooring

What is the best underlayment for hardwood?

What is the Best Underlayment for Hardwood Floors? Felt is used as underlayment for hardwood floors. It forms a hard surface without making the planks wet, which can cause them to warp. Cork is also a good choice, as it resists moisture and supports heavy loads on wood.

Do you put baseboard down before hardwood flooring?

Install your hardwood floors before fitting the baseboards for a snug fit and polished look.

What should I lay down before flooring?

Always lay down a moisture barrier before installing the floor.

Do hardwood floors need a vapor barrier?

Conclusion. Choosing the right underlayment or vapor barrier is essential for ensuring the longevity and performance of your hardwood floors.

How to prep for laying flooring?

7 Steps to Prepare Your Home for New Flooring Installation
  1. Remove Fragile and Valuable Items.
  2. Clear Furniture from the Room.
  3. Close Off Nearby Rooms.
  4. Disconnect Gas and Electric Appliances.
  5. Remove Surrounding Doors, Base Shoe, and Trim.
  6. Empty Closets and Storage Areas.
  7. Create Space for Waste Removal.

Do I need underlayment for a 3/4 hardwood floor?

It is beneficial to install hardwood floors with an underlayment. Despite the slight increase in cost and time, the added protection will benefit your floor long-term by reducing moisture. Additionally, increasing noise and evening out minor subfloor flaws without requiring substantial rework.

When should you not install hardwood floors?

Rooms with high humidity are generally not suitable for hardwood flooring. This is almost always solved by installing engineered flooring and/or using a finish and sealer.

What is the best subfloor for hardwood floors?

Plywood is the most common type of subflooring material and it's found in most residential homes. People like it because it's incredibly reliable—meaning it's consistent and does what it promises to do. Plywood is the best subfloor material if you are installing hardwood floors.

How do you prepare a floor for flooring?

The sub-floor beneath should be smooth, dry and level. And before the flooring goes down, you'll need to lay underlay as this will make the flooring easier to fit, help it to last longer and will improve sound and heat insulation.

What paper goes under hardwood flooring?

Today, practically all manufacturers follow to some degree what the National Wood Flooring Association (NWFA) recommends. And one of their recommendations is the use of asphalt felt paper over wood sub floors.

What happens if you don't put a moisture barrier under vinyl flooring?

When moisture penetrates your flooring, it can cause mold, mildew, and the potential for water damage. A moisture barrier helps control the water vapor's movement to help protect your floors. Therefore, if you're installing floors in an area that sees moisture, even a little, a vapor barrier is needed.

How to start hardwood flooring straight?

Don't start directly against the wall.

Most walls aren't perfectly straight so you risk ending up with a less than perfect installation. Make a mark on the wall at both ends of the room where you will place your first row. This will give you a reference point for where the whole planks should start and end.

Do you put flooring down before appliances?

Think about future renovations or appliance replacements. Installing the floor first provides a seamless look and makes future changes easier. If the floor runs under the cabinets, you won't face issues when it's time to replace appliances or undertake additional renovations.

What comes first, flooring or baseboard?

Baseboards are typically installed prior to the flooring. For instance, baseboards should be installed first before laying carpeting. It allows for the edges to be tucked under and out of view. However, it's much easier and convenient for hardwood and laminate flooring to be laid first before installing the trim.

Should you caulk between baseboard and hardwood floor?

Sealing the space between the trim and the baseboard is more aesthetically pleasing than leaving the space open with holes. Adding a layer of caulk will serve to smooth the transition between the floorboard and the trim, and you can even purchase colored caulk to make it flow more naturally.

Should you install hardwood floors before or after kitchen?

Renovation Timeline: If you want to future-proof your kitchen layout, flooring before cabinets may be best. This allows for flexibility should you decide to rearrange the space later. Budget: If saving costs is important, installing the cabinets first reduces the amount of flooring material needed.

What goes between subfloor and wood floor?

You have the top layer that is your floor covering (Hardwood, Laminate, Vinyl, Carpet, etc.), next you have the underlayment (usually a thin layer of fiber, foam, rubber), below that you have your subfloor (plywood, OSB, concrete), and lastly you have the joists which are the foundation to your floors.

How thick should subfloor be for hardwood floors?

The minimum thickness of plywood for subflooring is about 5/8 inch. Since it does not hold fasteners as well as plywood, OSB must be a little thicker, or at least 23/32 inch. There are several factors that determine what subfloor thickness is optimal for added benefits like insulation.

How to level a floor before installing hardwood?

Use an underlayment, floor leveler or floor patch product to fix low spots in a wood or concrete subfloor. An underlayment is a thin layer of material sandwiched between two other materials. It's used to help insulate, absorb sound and reduce wear on your floor. It can also serve as a vapor barrier.

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