Installation Instructions
18
INSTALL SILL SUPPORTS
Assemble the sill supports. Do not fully
tighten the spacer mounting screws at this
time.
Before attaching the sill supports, place
them on the window stool. Select the spacer
position that will place the spacer near the
outermost point on the sill. Tighten the
spacer mounting screws.
Turn the bolts and tighten the lock nuts to make
the sill supports level or tilt down 1/8″ to the
outside. Line up the “V” notch with 12
3
⁄8″ marks.
Drill pilot holes and attach the sill supports.
NOTES:
• On narrow sills, there may not be enough room to
use the lock nut.
• A deep offset sill may require a longer adjusting
bolt than the standard hex head bolt provided.
• On wood sills use the large washer between the
bolt head and the sill. This prevents the bolt from
digging into the wood.
PREPARE WINDOW
Mark the centerline of the stool. Measure
from the centerline 13
3
⁄8″ on both sides for
the panel cuts.
Measure 12
3
⁄8″ from the centerline on both sides
for the sill support brackets.
4
A
B
WINDOW INSTALLATION—OPTIONAL (cont.)
Stool
Sill
13
3
⁄8″
Centerline
5
A
B
C
Sill support
Average sill
Narrow sill
Offset sill (such as brick or stone)
Spacer
Spacer
Type B
Type E
Spacer mounting
screws Type (A)
Lock nut
Sill
support
Adjusting bolt
Large washer
(For use with wood
sills)
Stool
Sill
support
“V” notch
Screws are in position
Sill
Bolt
Stool
Sill
Outside
Outside
Inside
Inside
13
3
⁄8″
12
3
⁄8″
12
3
⁄8″
Centerline