How to Install an MDF Baseboard

someone installing baseboards
  • 3-4 hours
  • Beginner
  • 100-250
What You'll Need
1 MDF baseboard
1 tape measure
1 power-miter saw
1 nail gun
Some 1 3/4 inch nails
1 joint compound
1 80 grit sand paper
Sanding sponges
1 Latex caulking

Typically a MDF baseboard is used to complete the gap in the area where the walls meet the floor. It can easily be installed by following some simple instructions. Here is a look at the instructions on how to install an MDF baseboard.

Step 1 – Choosing the Right MDF Baseboard

Typically, the baseboard for a house that has a 2 1/4 inches casing should be 3 1/4 to 4 1/4 inches. The heavier the crown molding is, the larger the baseboard should be.

Step 2 - Estimating the Suitable Baseboard Size

The best way to estimate the suitable baseboard size is to measure the total wall space where the baseboard has to be applied. However, one should make sure that 10% is added to the size to adjust for any wastage.

Step 3 – Measuring the Required Piece Length

Go through the entire floor of the room. Measure the required piece length that has to be installed.

Step 4 – Deciding on the Cut

The most common baseboard cut used in a room is the 45 degree inside the mitered corners. In some cases a room has walls with 45 degree corners. Such a room requires a 22 1/2 degree cut. No matter what the chosen cut is, but one should make sure that both the pieces of the baseboard are cut at the same angle. If it is not done, the baseboard’s profile will not be able to match a corner.

Step 5 – Cutting the Baseboard

After the measuring is done, one has to cut the baseboard. Typically the best way to cut the baseboard is to use a power-miter saw for the job.

Step 6 – Using the Power-Miter Saw

While using the Power-Miter Saw, don't work on the floor. Instead use a table for the job. Also, place blocks on both the sides of the saw. It helps to maintain the work-piece level. Also be careful while keeping the pieces in order so that no pieces are misplaced.

Step 7 – Arranging the Baseboard Pieces

After one has all the pieces cut to the proper size, arrange them to be used in an orderly manner. Lay them along the walls to which the have to be fastened.

Step 8 – Fastening the Baseboard Pieces

Now, each of the pieces has to be fastened to the wall. Use a nail gun that is compatible with the 1 3/4 inch nails. As you have a piece ready to be nailed, prepare the next one for nailing. This may require you to trim some of the piece to get an exact fit.

Step 9 – Using Coat Corners

A lot of carpenters suggest using coat corners. These coat corners are used to join the inside corners.

Step 10 – Filling the Corners and Joints

Once the baseboard pieces are nailed to the walls, the straight joints and the outside corners have to be filled in with a joint compound that is designed to set really fast.

Step 11 – Sanding the Profiles

Next, the profiles have to be sanded with the help of sanding sponges or an 80 grit sand paper.

Step 12 – Finishing the Job

After sanding the profiles, paint the entire baseboard and its corner with a latex caulking. Once it is done, the installation of the MDF baseboard is complete.