Installation Guide

Step 9
Install siding around the opening.
Step 10
Align the Window Header Base over the
mount. Center the mount vertically as well,
leaving about 1/8" exposed at the top and
bottom (this will be covered when the header
is in place). Use the elongated slots in the
Header Base and attach the base to the
house using the screws provided.
Alternatively, the preferred method is to use
Shutter Loks. The raised portions of the
Header Base with the round holes receive
the Shutter Loks. Attach Shutter Loks by
drilling 1/4" holes into the wall. Be sure not
to fasten the screws or Shutter Loks too
tightly to allow for expansion and
contraction. See Figures 9A and 9B at right.
Fig. 9B
Fig. 9A
Screw Application
Shutter Lok Application
Length
Length
Min. # of screws
Min. # of screws
33 5/8 6
37 5/8 8
43 5/8 8
65 5/8 10
73 5/8 10