Box Sash Windows
Our heritage sash windows are made to match box sash windows crafted more than a century ago. These premium sash windows, with the classic weight-and-pulley mechanism are the perfect choice for replacement windows in listing buildings, while also suiting high-end architect-led new developments.
We use traditional putty externally to secure high-performance Slimlite glass. Single or double glazed, this authentic-looking slim glass satisfies the modern demands for acoustic and thermal performance.
Solid glazing bars come as standard, so each window comprises a number of individual glass panels, giving these heritage sash windows genuine character.
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Material
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Frame+Sashes Engineered redwood, Bottom Cill in Solid Hardwood – Standard. Engineered hardwood, Accoya, European oak.
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Sash
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39 x 45 mm top rail and stiles, 90
x 55 mm bottom rail, 45 x 55 mm meeting rail |
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Mullion / Transom |
200 mm wide (130 mm for triple sash with fixed outer
sash) |
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Sill Projection
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35 mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm
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Staff / parting beads
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Timber
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Wood moisture content
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12-19%
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Glazing beads
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External Traditional putty glazed
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Frame
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100 x 140 mm (lining width x frame depth),
manufactured using mortise and tenon joints, glued and mechanically fixed |
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Sash
|
39 x 45 mm top rail and stiles, 90
x 55 mm bottom rail, 45 x 55 mm meeting rail |
|
Mullion / Transom |
200 mm wide (130 mm for triple sash with fixed outer
sash) |
|
Sill Projection
|
35 mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm
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|
Staff / parting beads
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Timber
|
|
Wood moisture content
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12-19%
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|
Glazing beads
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External Traditional putty glazed
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