Installation Guide
– 5 – 
5.  Installation of Tub Leg Filler Panels (K)
A.  Tub Leg Filler panels (K) are installed from the oor to 
the bottom of the side walls next to the skirt of the tub, only 
when the side walls extend beyond the tub. First trim the 
height to t from oor to the bottom of the side wall panel. 
For a professional look, ller panel should match the contour 
of the tub. You can scribe the contour with a compass, or 
by hand, and cut with a jig saw or utility knife. Next, trim 
the outside edge to align with the outside edge of the side 
panel. Place a very ne bead of silicone along the top edge 
of the ller panel to seal it to the bottom edge of the side 
wall panel, then adhere ller panel as in Step 2.B.
NOTE: For alcoves that are only 1-2" larger front to back than the 
tub, the tub leg ller panels will not be needed, and the vertical trim 
molding (Item C or E) can be contour-cut to t right up against the 
6.  Installation of Back Wall Top Trim (G)
A.  Note the height of the shower head. Decide if top trims 
will be installed above or below shower head/escutcheon, 
keeping in mind that trims can overlap panels from ½" to 
2-1/2". Mark a level line at desired height of the top of the 
trim on the back wall (above the back wall panel).j
B.  Measure the distance from plumbing wall to opposite 
wall (sheetrock to sheetrock, NOT FlexStone to FlexStone). 
Cut item (G) to this measurement, then cut a notch ¼" wide in 
both ends. This will enable the trim to overlap the back panel 
and t over the end panels eliminating any large gaps or holes 
in the corners. 
C.  Dry t this trim piece and make sure it ts properly in a 
level position. Peel away protective masking from the trim, 
apply adhesive to the back of the trim molding, and adhere it 
over the back wall panel. Secure the trim piece in place while 
the adhesive cures using paint-safe masking tape.
NOTE: Trim moldings are shaped like an "L", and the long leg is 
designed to overlap panels, with the short leg returning back to 
the sheetrock and hiding the panel edge. Be sure to peel protective 
masking back from the edges of the panels before adhering the trim 
moldings.
Tub Leg 
Filler Panel
V.4 03/2022








