Half-Circle Units to match Casements
Half-Circle Units | Casement
1'-10 1/2" 1'-8 1/2" 15 1/4"
2'-2 1/2" 2'-0 1/2" 19 1/4"
U.D.
3'-2 1/2" 3'-0 1/2" 31 1/4"
2'-10 1/2" 2'-8 1/2" 27 1/4"
2'-8 1/2" 2'-6 1/2" 25 1/4"
1'-6 1/2" 1'-4 1/2" 11 1/4"
U.D.
U.D.
U.D.
U.D.
U.D.
2'-6 1/2" 2'-4 1/2" 23 1/4"
U.D.
R.O.
R.O.
R.O.
R.O.
R.O.
R.O.
R.O.
G.S.
G.S.
G.S.
G.S.
G.S.
G.S.
G.S.
RTKW1
RTKN1
RTKX1
RTKS2
RTKS1
RTKL1
RTK30/E1
U.D.
5'-2 1/2" 5'-0 1/2" 55 1/4"
3'-8 1/2" 3'-6 1/2" 37"
4'-10 1/2" 4'-8 1/2" 51 1/4"
3'-6 1/2" 3'-4 1/2" 35 1/4"
U.D.
U.D.
4'-2 1/2" 4'-0 1/2" 43 1/4"
U.D.
U.D.
R.O.
R.O.
R.O.
R.O.
R.O.
G.S.
G.S.
G.S.
G.S.
G.S.
RTKN2
RTKL2
RTK36
RTKW2
RTKX2
6'-2 1/2" 6'-0 1/2" 67 1/4"
7'-8 1/2" 7'-6 1/2" 85 1/4"
8'-2 1/2" 8'-0 1/2" 91 1/4"
7'-2 1/2" 7'-0 1/2" 79 1/4"
U.D.
U.D.
U.D.
U.D.
R.O.
R.O.
R.O.
R.O.
G.S.
G.S.
G.S.
G.S.
RTKW3
RTKL3
RTKX3
RTKW4
Half-Circle Units to match Double Hungs
Half-Circle Units | Double Hung
3'-3 7/8" 3'-2" 32"
2'-3 7/8" 2'-2" 20"
3'-9 3/8" 3'-7 1/2" 37 1/2"
3'-7 7/8" 3'-6" 36"
2'-11 7/8" 2'-10" 28"
1'-11 7/8" 1'-10" 16"
2'-7 7/8" 2'-6" 24"
U.D.
U.D.
U.D.
U.D.
U.D.
U.D.
U.D.
R.O.
R.O.
R.O.
R.O.
R.O.
R.O.
R.O.
G.S.
G.S.
G.S.
G.S.
G.S.
G.S.
G.S.
RT24DH
RT28DH
RT20DH
RT16DH
RT32DH
RT36DH
RT16-2DH
3'-11 7/8" 3'-10" 40"
U.D.
6'-5 3/8" 6'-3 1/2" 69 1/2"
5'-1 3/8" 4'-11 1/2" 53 1/2"
U.D.
4'-5 3/8" 4'-3 1/2" 45 1/2"
5'-9 3/8" 5'-7 1/2" 61 1/2"
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.
RT40DH
RT20-2DH
RT24-2DH
RT28-2DH
RT32-2DH
7'-1 3/8" 6'-11 1/2" 77 1/2"
U.D.
U.D.
7'-9 3/8" 7'-7 1/2" 85 1/2"
R.O.
R.O.
G.S.
G.S.
RT36-2DH
RT40-2DH
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 117
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