Installation Guide
A.  Place horizontal left wall top mitered trim (Item D) in 
place, push into the corner against back wall trim piece, 
then level it. Mark a level line on the wall on the top side of 
the molding near the outer end. Set aside this trim piece.
B.  Measure from the oor to the level mark made in 7.A 
to determine the length needed for the vertical trim piece 
(Item C). Cut vertical trim piece (C) to this length, but do 
not cut from the pre-mitered end! 
C.  Fit vertical trim piece (C) over panel and plumb using a 
level. If contour cutting this molding to match the shower 
base shape, do so now. You can scribe the contour with a 
compass, or by hand, and cut with a jig saw or utility knife.  
For tub installations, the back side of the molding will not 
be supported by panel material in the contour cut region 
outside the tub.  Use a piece of cuto scrap as a ller behind 
this area of the molding. Peel away protective masking 
from the trim, apply adhesive and adhere molding to panel. 
Secure with masking tape as in Step 6.C.
D.  Measure horizontal distance from back wall molding 
piece to the tip of miter on the vertical molding. Cut the 
horizontal top trim molding (Item D) to this dimension by 
cutting o the end opposite the miter. Be sure not to cut 
the mitered end. 
E.  Dry t the molding (D) in place for a tight t. Peel 
away protective masking from the trim, apply adhesive 
on the backside of the molding and adhere to the wall as 
before. Make any minor adjustments necessary to ensure 
that the mitered end makes a tight joint.
F.  Repeat 7.A-7.E for the opposite wall trims (E, F).
Vertical trims installed outside shower base
Vertical trims contour cut to overlap threshold
NOTE: Vertical trim moldings are designed to be installed either:
 1) resting on top of the shower base threshold, or 2) outside the 
threshold and running down to the oor. Depending on the size of 
your alcove opening, you may even choose to contour cut the trim 
moldings to overlap the threshold partially.
7.  Installation of Side Wall Trims (C,D,E,F)
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V.2 - 3/18/2019










