Skip Links

Traditional Timber Box Sash Windows

View Windows style options

Traditional timber box sash windows are for refurbishment only as our wooden box sash is only available single glazed and with pulleys cords and weights. We generally use timber-parting beads but can implement a gasket-parting bead. This detail must be agreed if the windows are to a listed building.

The window is traditional mortice and tenon wedged and should be considered for any refurbishment to Grade II listed buildings.

SPECIFICATION

  • Box section and framework:

Treated laminated redwood. 144mm x 114mm (including face boards) as standard

  • Sashes:

Vertical grain, clear, Douglas Fir,

Top rail: 45mm x 39mm

Bottom rails: 90mm x 39mm

  • Sash jambs

Vertical grain, clear, Douglas Fir, 39mm x 45mm

  • Meeting Rail:

Vertical grain, clear, Douglas Fir, 48mm x 38mm

  • C ill:

Hardwood and rebated for window board ( Unless otherwise stated in order), 144mm x 70mm

  • Glass:

Clear Low E Softcoat units (Toughened where applicable) 4mm - 16mm - 4mm

  • Ironmongery:

Weights and cords hung on axle pullies. Lockable “knob” type fasteners and sash lift pulls as standard. Ventlocks used where required.

Bespoke specification*

  • Hardwood
  • Glazing in lambs tongue, ovolo
  • Glazing bar 20mm with beads fully factory glazed
  • Extended cills
  • Single 4mm toughened glass
  • Ironmongery brass, chrome and satin chrome, lockable flitch fasteners
  • Brass pulleys
  • Sash restrictors
  • Brush parting beads with carrier (removable for decorating)
  • Kite or square posts for bays
  • Decorative horns removed
  • Pull down handles
  • 3 Coat finish

Please click to download a Traditional Box Sash specification sheet.

*Any of the above must be agreed at time of order.

Window Range:

  • Heritage Box Sash Windows

    Heritage Box Sash Windows

    Westbury Windows and Joinery practices traditional joinery techniques and discreetly incorporates modern innovations to ensure that the finished wooden sash window is both practical and beautiful

  • New Build and Contemporary Timber Windows

    New Build and Contemporary Timber Windows

    Westburys range of contemporary double glazed timber windows differ in their simple profile and modern look but are made to the same high standard and finish as our other more traditional wooden casement and box sash window range.

  • Traditional Casement Windows

    Traditional Casement Windows

    With 100s of conservatories, timber orangeries, wooden garden rooms and poolhouses to our name, we feel we know something about wooden casement windows. Westbury's traditional windows have projecting mullions. which give depth and the impression that they are original.

The complete conservatory from Westbury Conservatories, renowned for our stylish bespoke timber garden rooms, timber orangeries, timber and glass conservatories and timber poolhouses. Our special one off glass rooms are second to none.