Dimensions Guide

PRODUCT GUIDE
Vinyl Single and Double-Hung Windows (JPG006)
8
FRAME TWISTS
Attach two pieces
ofstringtoframe/
sash, corner to corner.
If there is a gap
between strings at
center point larger
than1/8"forwindows
up to 4' wide or high,
or3/16"forwindows
larger than 4' wide
or high, the frame is
not at. Repeat by
switching strings and
re-measuring.
PROPER SHIMMING
Measure width of
frame at top, center,
and bottom. If any
two measurements
differ more than
1/16",theframe
is over or under
shimmed. Repeat
process and measure
height of frame.
LEVEL AND PLUMB
For plumb, place level
againsteachsidejamb
or use a plumb bob.
For level, place level
againstheadjamb
and sill.
SQUARE
Measureframe/
sash from top left to
bottom right corner
and from top right to
bottom left corner. If
measurements differ
by1/8"forwindows
upto20sq.ft.or1/4"
for windows larger
than20sq.ft.,unitis
out-of-square.
PROPER WINDOW INSTALLATION
LEVEL INDICATOR
Accurate measurements are essential in determining level and plumb.
Most carpenters' levels have several bubble level indicators, making it
possible to measure all parts of the window.
Examine the horizontal indicator. If the bubble is centered between the
lines of the indicator, it is level.
Ifthebubbleisnotexactlycentered,measurehowfar“outoflevel”or
“outofplumb”bymaneuveringtheendoftheleveluntilthebubbleis
exactly centered. Measure the farthest gap between the level and the
surface.Ona2'level,thegapmustnotexceed1/16",orona4'level
(orlonger),thegapmustnotexceed1/8",orthesurfaceisoutoflevel/
plumb.
Sidejamb
Headjamb
Headjamb
Measure
here
•Proper installation is essential for keeping windows operating smoothly. If a window fails to operate properly, an inspection is necessary to determine if
it was installed correctly.
•These inspection instructions apply to at window types. Bow windows, bay windows, and unusual geometric-shaped windows are more complicated
and should be inspected by a window professional.
•Acontractororinstallercanassistindeterminingthecauseofawindowbeing“outofspecication”andpossiblycorrectit.Windowproblemsdueto
improper installation are usually not covered by the manufacturer’s warranty. For installation instructions, contact us or your supplier.
•ThespecicationsandmeasurementsreferencedinthisguidearetakenfromASTME2112StandardPracticeforInstallationofExteriorWindows,Doors
and Skylights.
Note: These instructions do not address inspection for proper “water tightness” or ashing. A “water tight” inspection requires removal of the exterior
siding around the window. Seek professional assistance regarding this issue.