Quarter-Circle Units to match Casements
Quarter-Circle Units | Casement
2'-2 1/2" 2'-0 1/2" 19 1/4"
4'-2 1/2" 4'-0 1/2" 43 1/4"
3'-2 1/2" 3'-0 1/2" 31 1/4"
1'-10 1/2" 1'-8 1/2" 15 1/4"
2'-8 1/2" 2'-6 1/2" 25 1/4"
U.D.
U.D.
U.D.
U.D.
U.D.
R.O.
R.O.
R.O.
R.O.
R.O.
G.S.
G.S.
G.S.
G.S.
G.S.
RTQRN1
RTQRW1
RTQRX1
RTQRK30
RTQRW2
Quarter-Circle Units to match Double Hungs Quarter-Circle Units | Double Hung
2'-3 7/8" 2'-2" 20"
2'-7 7/8" 2'-6" 24"
3'-3 7/8" 3'-2" 32"
2'-11 7/8" 2'-10" 28"
U.D.
U.D.
U.D.
U.D.
R.O.
R.O.
R.O.
R.O.
G.S.
G.S.
G.S.
G.S.
RTQR20
RTQR24
RTQR28
RTQR32
Full Circle Units
Full Circle Units
3'-2" 3'-0 1/2" 31 1/4"
2'-2" 2'-0 1/2" 19 1/4"
6'-2" 6'-0 1/2" 67 1/4"
3'-8" 3'-6 1/2" 37 1/4"
2'-8" 2'-6 1/2" 25 1/4"
4'-2 1/2" 4'-0 1/2" 43 1/4"
U.D.
R.O.
G.S.
FC2-0 FC2-6
FC3-0
FC3-6
FC4-0
FC6-0
Oval Units
Oval Units
1'-10 1/2" 1'-8 1/2" 15 1/4"
3'-2 1/2" 3'-0 1/2" 31 1/4"
2'-2 1/2" 2'-0 1/2" 19 1/4"
U.D.
U.D.
U.D.
R.O.
R.O.
R.O.
G.S.
G.S.
G.S.
WOV1-8
OV2-0
OV3-0
U.D. = Unit Dimension • R.O. = Rough Opening • G.S. = Glass Size
NOTE: All measurements are nominal. Elevation charts are not to scale. Radius units are sash set as standard. Direct set units are available. Glass sizes differ for direct set units. Contact your supplier for details. The units shown are stand-alone units. Adjustments may be required when stacking over other units; adjustments will be made in the factory. Divided lites are optional. Divided lite pattern options are shown on pg. 116. Some installation procedures will require a larger rough opening than noted (i.e. installations utilizing our installation clips), therefore, you may need to increase the rough opening size accordingly. Rough opening gaps may be increased up to a maximum of 1/2" on all sides and still be within good practice guidelines. For rough opening recommendations, see pg. 194. Additional and the most current drawings are available at www.kolbewindows.com .
Heritage Series 121
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