Technical Specifications

Interior
Casing Trim
Parting Stop
Exterior Stop
Interior Stop
Measure the
width of your
old window
from jamb to
jamb, as
shown by the
red arrow.
Measure to Side Jamb
Measure
the height
of your old
window
from the
point where
the inside of
the bottom
sash meets
the sill, as
shown by
the red
arrow.
If dashed red
lines on paper
template match
the angle of your
sash and sill,
your sill slopes
at 14° or 7°.
Sill
Sash
Edge
of Paper
Template
Window Width Height Sill Slope Location Window Type Options
Example 36" 48" N /A Dining Room Single-Hung WEN-Lock, Obscure Glass
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
2
Check Your Sill Angle
• If installing your replacement window into a wood double-hung with a sloped sill, verify that the slope is 14˚ or 7˚.
Record the slope on your worksheet below.
• For your convenience, we have drawn a template at the bottom right corner of this page to help you determine if you
have a standard sill slope angle. Just fold or cut this page (or another sheet of paper) along the dashed red lines.
The angle formed by the dashed lines should be the same as the angle formed by the sill. (Figure 4)
Order Your New Vinyl Replacement Windows
For installation into masonry/concrete, order replacement windows without a sloped sill adapter and refer to
the installation instructions provided with the window.
1
• From inside your home, measure
the width of the existing window
frame. Measure between the jambs
at three spots: top, bottom, and
middle. (Figure 2)
Measure Your Old Window Frame
Figure 2 Figure 3 Figure 4
• Now measure the height of the
existing window frame. Measure
from the head jamb to the sill at
the point where the inside part
of the interior sash meets the
sill. (Figure 3)
• Record the smallest width
measurement and the smallest
height measurement in the
worksheet below.
LAY ALONG OUTSIDE OF SASH
14˚
LAY ALONG TOP OF SILL
7˚