Information · Size Limits

Size Limits

Minimum and maximum sash sizes for each opening method, with the hardware weight capacity. Sash dimensions are the rebate size, shown in millimeters, decimal inches, and feet-and-inches.

Information
Window & Door TypesSize LimitsMaterial ChoicesDaylightingAir InfiltrationNFRC & LEEDU-Value & SHGCThermal PerformanceCondensation ResistanceAir Barrier InterfaceGlass and GlazingInstallationTerms & ConditionsWarrantyResourcesKey to NFRC CodesAffiliationsGlossaryFrame Width Comparisons
Opening methodLimitSash width (rebate)Sash height (rebate)Max sash weight
Concealed Tilt & TurnMinimum
390 mm1' 3 3/8"15.35 in
555 mm1' 9 7/8"21.85 in
80 / 100 kg
Maximum
1600 mm5' 3"62.99 in
2700 mm8' 10 5/16"106.30 in
Concealed Inward CasementMinimum
250 mm0' 9 13/16"9.84 in
520 mm1' 8 1/2"20.47 in
80 / 150 kg
Maximum
1600 mm5' 3"62.99 in
2700 mm8' 10 5/16"106.30 in
Exposed-Hinge Tilt & TurnMinimum
390 mm1' 3 3/8"15.35 in
520 mm1' 8 1/2"20.47 in
80 / 200 kg
Maximum
1600 mm5' 3"62.99 in
2400 mm7' 10 1/2"94.49 in
Exposed-Hinge Inward CasementMinimum
390 mm1' 3 3/8"15.35 in
520 mm1' 8 1/2"20.47 in
80 / 200 kg
Maximum
1600 mm5' 3"62.99 in
3000 mm9' 10 1/8"118.11 in
Outward Casement & Top-HungMinimum
300 mm0' 11 13/16"11.81 in
300 mm0' 11 13/16"11.81 in
35 / 180 kg
Maximum
750 mm2' 5 1/2"29.53 in
2500 mm8' 2 7/16"98.43 in
Parallel Push-Out WindowMinimum
600 mm1' 11 5/8"23.62 in
700 mm2' 3 9/16"27.56 in
120 / 250 kg
Maximum
2000 mm6' 6 3/4"78.74 in
3800 mm12' 5 5/8"149.61 in
Lift & Slide DoorMinimum
700 mm2' 3 9/16"27.56 in
1800 mm5' 10 7/8"70.87 in
150 / 300 kg
Maximum
3000 mm9' 10 1/8"118.11 in
3100 mm10' 2 1/16"122.05 in
Side-Sealing Sliding DoorMinimum
600 mm1' 11 5/8"23.62 in
1000 mm3' 3 3/8"39.37 in
200 kg
Maximum
2000 mm6' 6 3/4"78.74 in
2500 mm8' 2 7/16"98.43 in
Hinged DoorMinimum
800 mm2' 7 1/2"31.50 in
1800 mm5' 10 7/8"70.87 in
100 / 140 kg
Maximum
1300 mm4' 3 3/16"51.18 in
2800 mm9' 2 1/4"110.24 in

Sash weight / hardware capacity. Where two figures are shown, the first is the standard hardware configuration and the second is the upgraded, heavy-duty configuration (for example, standard 80 kg / upgraded 100 kg). The higher capacity requires the upgraded hardware set for that series.

Rebate size. The width and height above are the sash rebate (groove) dimensions, not the visible glass or the rough opening.

Values are hardware limits for the Roto operating hardware; final sizes are also governed by glass weight, wind load, and the specific system. Confirm project-specific maximums with GlasFëns.