Installation Guide
Always wear eye, ear and respiratory protection 
when doing any home improvement project. Cut 
and mill in a well-ventilated area. WPB MTrim 
boards are not designed for structural use.
WPB is subject to expansion and contraction. 
Allow the product to acclimate in the room 
where they’ll be installed for 48 hours prior to 
installation.
Cleaning:
Clean the surface and back of molding of dust and dirt with a sponge or clean cloth, make sure that the 
molding is completely dry before installation. You can clean WPB MTrim with most major household clea-
ners, it should be applied and immediately wiped dry. 
How Do I Splice a Molding?
To span longer lengths, you may have to splice 
moldings. Mitre the joining ends at 45° angles 
from front to back. One member will overlap the 
other in a scarf joint, creating a vertical face 
seam in the nished installation. It is advisable 
to join molding pieces over wall stud for additio-
nal strength.
Install moldings
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