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Version: 2011.07.01

Wood Trim

Shrinkage of wood trim occurs during the first two years or longer, depending on temperature and humidity. All lumber is more vulnerable to shrinkage during the heating season. Wood will shrink less lengthwise than across the grain.

Minimize Shrinkage

Maintaining a moderate and stable temperature helps to minimize the effects of shrinkage.

Separation at Joints​

Wood shrinkage can result in separation at joints of trim pieces. You can usually correct this with caulking and touch-up painting.

Trim Pulling Away from the Wall​

Shrinkage may also cause a piece of trim to pull away from the wall. If this occurs:

  1. Drive in another nail close to, but not exactly in, the existing nail hole.
  2. Fill the old nail hole with putty.
  3. Touch up with paint as needed.

Base Shoe Lifting​

If the base shoe (small trim between base molding and the floor) appears to be lifting from the floor, this is probably due to slight shrinkage of the floor joists below. You can correct this condition by removing the old nails and renailing.

Warranty Coverage: See Wood Trim Standards for coverage details.