Full Frame-Out for Wood Windows
Wood windows present the same opportunity for Full
Frame-Out installation. They, however, do not have
an old fin but are similarly attached to the house
framing such than when removed, they leave a clean
opening into which a finned window can be easily 
re-flashed and installed properly.
There are many benefits to doing a Frame-Out instal-
lation beyond the better integration of the new win-
dow into the water 
management system of
the wall.
First, you can realize a
greater glass area over
traditional blindstop,
sash-pocket installation
because the new win-
dow is filling the total
opening, not made
smaller by the old
frame.
Second, Frame-Out will
let you install a 
bigger window main-
taining egress accom-
modation - important in rooms where the window is
the only means of escape in case of emergency or fire.
The Frame-Out method requires that the new window
be finned and have jamb extensions (either wood or
extruded pvc). It also requires measuring accurately. 
Measure wood windows with weights and pulleys
between the 
interior of the
jambs for the
width, and adding
3 inches, and the
height taken
between the 
interior face of 
the header and 
the sill and adding
3-1/2 inches.
For wood windows
with plastic track
and spring 
balances, add 
2 inches to the
width and 2-1/2
inches to the
height. 
This approach will accurately provide a window that
will fit and be able to be shimmed and flashed 
properly.
Window Fitters Guide to Window Installation 
38                ©2022 AWDI, LLC Do not reproduce without permission
Frame-Out Gives 25% More
Glass Area and Egress Area
Wood Frame-Out- 
Replacement Sequence
All pieces of the old window, complete with frame, sill and
trim will need to be removed to expose wall framing.
Weight Pockets can require
additional 1” width
Instead of the pocket Frame-In install, a larger  finned new
window is mounted to the framing with proper flashing, drip
cap and effective sill pan. Cellular pvc trim is applied over
the fin. Jamb extensions re-finish the interior. More Glass
area, better water management.
SAMPLE MANUAL

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