Box Sash Window
The traditional sliding sash window with concealed counterweight boxes, ideal for heritage restorations and period properties requiring authentic detailing.
Classic
Key features
Cords & Weights
Details
Face applied glazing bars
Performance
PAS24 tested
Glazing options
- 4-6-4 (14mm DGU)
- 4-12-4 (20mm DGU)
- 4-16-4 (24mm DGU)
- 7.7mm - 10.3mm vacuum glass
- 4-14-4-14-4 (40mm triple glazed)
Specification options
- Material specification options
- Glazing specification options
Conservation
Key features
Cords & Weights
Details
- True solid glazing bars.
- External putty bead: Hand applied
Performance
PAS24 not applicable to this range
Slimline glazing
- 4-4-4 12mm DGU
- 4-6-4 14mm DGU
- 11.3mm Heritage vacuum glass
Specification options
- Material specification options
- Glazing specification options
Period
Key features
Cords & Weights
Details
- True solid glazing bars.
- External putty bead: Hand applied
Performance
PAS24 not applicable to this range
Slimline glazing
- 4-4-4 12mm DGU
- 4-6-4 14mm DGU
- 11.3mm Heritage vacuum glass
Specification options
- Material specification options
- Glazing specification options
Spring Balance Sash
Key features
Spring loaded mechanism
Details
Face applied glazing bars
Performance
PAS24 tested
Glazing options
- 4-6-4 (14mm DGU)
- 4-12-4 (20mm DGU)
- 4-16-4 (24mm DGU)
- 7.7mm - 10.3mm vacuum glass
- 4-14-4-14-4 (40mm triple glazed)
Specification options
- Material specification options
- Glazing specification options
Conservation
Key features
Spring loaded mechanism
Details
True solid glazing bars with external putty beads.
Performance
PAS24 not applicable to this range
Slimline glazing
- 4-4-4 12mm DGU
- 4-6-4 14mm DGU
- 11.3mm Heritage vacuum glass
Specification options
- Material specification options
- Glazing specification options
Summary
Overview of key features within the Sliding Sash collection. Alternative glazing options and configurations are available.
Box Sash
Spring Balance
Range
Sash
Depth
Depth
PAS 24
Part Q
Part Q
Glazing
Glazing Bars
Operation
Box SashClassic
56mm
Yes
4-16-4 · 24mm DGU
Face-applied glazing bars, internally beaded
Cords & weights
Box SashClassic
50mm
Yes
4-6-4 · 14mm DGU
4-12-4 · 20mm DGU
Vacuum glass
4-12-4 · 20mm DGU
Vacuum glass
Face-applied glazing bars, internally beaded
Cords & weights
Box SashClassic
73mm
Yes
4-14-4-14 · 40mm triple glazed
Face-applied glazing bars, internally beaded
Cords & weights
Box SashConservation
50mm
No
Slimline double glazing4-4-4 · 12mm DGU
4-6-4 · 14mm DGU
Heritage vacuum glass
4-6-4 · 14mm DGU
Heritage vacuum glass
True solid glazing bars, externally glazed with hand-applied putty
Cords & weights
Box SashPeriod
44mm
No
4mm single glazed
Heritage vacuum glass
Heritage vacuum glass
True solid glazing bars, externally glazed with hand-applied putty
Cords & weights
Spring BalanceClassic
56mm
Yes
4-16-4 · 24mm DGU
Face-applied glazing bars, internally beaded
Spring balance mechanism
Spring BalanceClassic
50mm
Yes
4-6-4 · 14mm DGU
4-12-4 · 20mm DGU
Vacuum glass
4-12-4 · 20mm DGU
Vacuum glass
Face-applied glazing bars, internally beaded
Spring balance mechanism
Spring BalanceClassic
73mm
Yes
4-14-4-14 · 40mm triple glazed
Face-applied glazing bars, internally beaded
Spring balance mechanism
Spring BalanceConservation
50mm
No
Slimline double glazing4-4-4 · 12mm DGU
4-6-4 · 14mm DGU
Heritage vacuum glass
4-6-4 · 14mm DGU
Heritage vacuum glass
True solid glazing bars, externally glazed with hand-applied putty
Spring balance mechanism
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ARCHITECTURAL WINDOWS, DOORS & STAIRCASES
