How to Install Flexible Molding

Written by alexander callos
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How to Install Flexible Molding
Spruce up this piece using flexible moulding. (furniture over white image by Lars Christensen from

Flexible moulding is a product that can be used for many different applications around the house. With its ability to bend to form around various objects, it has more uses and options than regular wood moulding. Flexible moulding is generally composed of polyester resin and is commonly used for architectural designs, furniture parts, lamps and carvings. It also can be used in standard door and window applications and it comes in many different forms and sizes. Installing flexible moulding is similar to the installation of regular trim and can be completed by most homeowners.

Skill level:

Things you need

  • Tape measure
  • Mitre saw
  • Construction adhesive
  • Nail gun
  • Nails
  • Putty knife
  • Pencil
  • Wood putty
  • Sandpaper
  • Paper

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  1. 1

    Measure the length of the area where the moulding is going to be installed. Write down the measurements on a piece of paper. Measure that same length on the moulding and mark it with a pencil.

  2. 2

    Cut the piece with a mitre saw to the desired length. Repeat this process for all of the pieces of moulding that will need to be cut. For moulding around doors or windows, an angle cut will need to be made, so adjust the mitre saw accordingly.

  3. 3

    Apply construction adhesive---using a putty knife---to the back of the moulding. Make sure to be generous with the adhesive, so the moulding will properly adhere to the wall. Line the moulding up on the wall at the desired location and press it firmly into place. Hold it for a minute until it is secure. Beginning at the top, press down on the moulding to further push it into place and work down the entire piece.

  4. 4

    Insert finishing nails into the moulding with a nail gun. Start at the top and nail directly into the centre. Move down about six inches and insert the next nail. Continue this process for the entire piece of moulding.

  5. 5

    Repeat this procedure for every piece of flexible moulding that will be installed. Work around arches by bending the piece around the arch, then install it in the exact same manner as the other pieces.

  6. 6

    Apply wood putty over all the nail holes, after the moulding has been installed. Apply the wood putty with a putty knife to cover all the nail holes on the moulding. Give the putty proper time to dry, then sand the moulding to smooth out all uneven edges. Paint or stain the moulding as you would regular wood moulding.

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