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Timber Box Sash Windows

Verified by manufacturer 25 days ago

Legacy Weights Balance

Westbury Windows & Joinery Ltd Variant:
Product certifications:

  • PAS 24

    Certificate type

  • PAS 24

    Certificate type

  • Weathertightness Testing

    Certificate type

  • SRL

    SRL

    Certificate type

Timber wood box sash windows.

Jump to:
BOS
 +44 (0)1245 326510 Website

Application

Residential spring sash windows, suitable for new build or refurbishment projects.

Description

Westbury timber wood sash windows offer a distinctive style, period authenticity and traditional sight lines. The Box Sash Windows use pulleys, cords and weights to counter balance the top and bottom sashes. Offering the best of tradition and modern technology, they retain authentic heritage styling with the latest technology for improved security, thermal and acoustic performance.


Features and benefits:

  • Incorporate a heritage design.
  • Distinctive design features include decorative sash horns, a concealed trickle vent detail, deep moulded lamb’s tongue profiles with 21 mm glazing bars and internally moulded staff beads.
  • The weights are housed in a ‘box’ created by liners extending the frame on each side internally and externally.
  • These energy-efficient timber windows are made from premium grade, knot-free engineered Accoya and European Redwood. Accoya is a sustainable wood that is laminated to provide excellent stability and a superior finish.
  • Treated with a three-coat, spray-applied, microporous paint system prior to delivery.

General information

Color

Beige

Black

Cream

Grey

Ivory

Show more

Finish

Painted

Material

Glass

Timber

Shape

Rectangle

Square

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Guidance for specification option:

Glass, hardware, weather seal and paint.

Uniclass

Pr_30_59_98_96 Wood window unitsPrimary

CAWS

L10/10 Wood windows

L10/210 Wood windows

Specification data - Wood window units

Classification data

Standard

To BS 644:2009.

Dimensions and configurations

Sliding down LSSWB.
Sliding down LSSWB horns.
Sliding up LSSWB.
Sliding up LSSWB horns.
Top Fixed LSSWB.
Top fixed LSSWB horns.
Bottom fixed LSSWB.
Bottom fixed LSSWB - no fastener.
Bottom fixed LSSWB horns.
Bottom fixed LSSWB horns - no fastener.
As drawing.

Guidance for specification option:

Insert details as required.

As schedule.

Guidance for specification option:

Insert details as required.

Manufacturer guidance

Consult manufacturer for details as required.

Product performance

-

Weather performance

-

UK exposure category

To BS 6375-1, 2000 Pa.

Air permeability

To BS 6375-1, Class 4.

Guidance for specification option:

Air permeability tests in accordance with BS EN 1026:2000.

Watertightness

To BS 6375-1, Class 8A.

Guidance for specification option:

Watertightness test in accordance with BS EN 1027:2000.

Resistance to wind load

To BS 6375-1, Class A5.

Guidance for specification option:

Wind resistance tests in accordance with BS EN 12211:2000.

Thermal

-

Whole window U-value

-

Manufacturer guidance

Insert requirements.

Frame

-

Standard

To BS EN 942.
To BS EN 14220.

Profile

Heritage (silicon glazing).
Classique (silicon glazing).
Heritage (vented/ gasket glazing system).
Classique (vented/ gasket glazing system).

Wood species

Accoya and European redwood.

Guidance for specification option:

Premium grade, knot-free engineered Accoya and European Redwood. Accoya is a sustainable wood that is laminated to provide excellent stability and a superior finish.

Finish as delivered

Water-based microporous paint.

Guidance for specification option:

Creates an extremely durable and highly protective barrier against weather, high levels of UV exposure and fungal attack. They also contain greater quantities of pigment, needed for quality paint, giving the colour greater clarity and less fading.

When properly cared for these paints will protect for 12 years or more before repainting may be required.

Ventilator

External - Pair Select GN16 148 Grille Brown.
External - Pair Select GN16 148 Grille White.
Internal - Select XR16 4600EA Brown.
Internal - Select XR16 4600EA White.
Internal - Select XR16 4600EA Clotted Cream.
Internal - Select XR16 4600EA Anthracite Grey.
Internal - Select XR16 4600EA Black.

Frame horns

-

Manufacturer guidance

Insert requirements or omit.

Glazing or infill

-

Requirements

16 mm glass.
4T-8-4T low-E.
4T-6-6T Black Lacobel low-E.

Manufacturer guidance

See Coatings for further options.

Hardware

Manufacturer's standard.

Guidance for specification option:

See below for Fastener, Vent locks, Window lifts and Window pulleys.

Operation

-

Type

Manual.

Fixing features

-

Manufacturer guidance

Insert requirements.

Colour

01 Westbury White.

Guidance for specification option:

RAL 9010.

02 Birch.

Guidance for specification option:

Farrow & Ball Lime White.

03 Westbury Stone.

Guidance for specification option:

Farrow & Ball Drop Cloth.

04 Holland Linen.

Guidance for specification option:

M&L Candle.

05 Upton White.

Guidance for specification option:

Farrow & Ball James White.

06 Wash White.

Guidance for specification option:

Farrow & Ball Skimming Stone.

07 New Salt Stone.

Guidance for specification option:

Farrow & Ball Pavilion Grey.

08 OS White.

Guidance for specification option:

Farrow & Ball Old White.

09 Morris Grey.

Guidance for specification option:

Farrow & Ball Charleston Grey.

10 Bark.

Guidance for specification option:

Farrow & Ball Mouse's Back.

11 Estuary Grey.

Guidance for specification option:

Farrow & Ball Dove Tale.

12 Westbury Black.

Guidance for specification option:

M&L Graphite Grey.

13 Strong Limewash.

Guidance for specification option:

Farrow & Ball Hardwick White.

14 River Green.

Guidance for specification option:

M&L Dutch Green.

15 Westbury Bronze.

Guidance for specification option:

Middle Bronze Green BS223

16 Saxifrage.

Guidance for specification option:

M&L Drab.

17 Aggregate.

Guidance for specification option:

Farrow & Ball Lamp Room Grey.

18 Roman Bronze.

Guidance for specification option:

M&L Roman Bronze

19 Portland Stone.

Guidance for specification option:

Farrow & Ball Light Grey.

20 Flint.

Guidance for specification option:

Farrow & Ball Pigeon.

21 Pebble.

Guidance for specification option:

M&L Umber.

22 Granite.

Guidance for specification option:

M&L Ash Grey.

23 Slate.

Guidance for specification option:

M&L Slate Blue.

24 Westbury Grey.

Guidance for specification option:

RAL 7015.

Special order.

Guidance for specification option:

Consult manufacturer for options and insert requirements.

Spacer bar

Black.
White.

Gas

Argon.
Krypton.

Glazing beads

Glazing beads - scribed/ scribed.
RF panel glazing beads – MAR.
VEE board panel glazing beads - mitred/ scribed.

Coating

None.
SN70/35 4/6 mm.
Westbury SunGuard 4S.
SKN 176.

Glazing options

None (clear glass).
6 mm Diamond Lead 135 x 230 mm.
9 mm Diamond Lead 135 x 230 mm.
6 mm Antiqued Diamond Lead 135 x 230 mm.
9 mm Antiqued Diamond Lead 135 x 230 mm.
4 mm Minster Obscure (T).
4 mm Satin Obscure (T).
Other.

Guidance for specification option:

Consult manufacturer for options and insert requirements.

Glazing accessories

Bonded astragals.
21 mm putty style bar with no integral bar.
21 mm putty style bar with 18 mm integral bar.
QWOOD bonded astragals.
Supplier bars - internal/ applied.
9 mm rectangular leading.
9 mm antiqued rectangular leading.
6 mm rectangular leading.
12 mm antiqued rectangular leading.

Frame

Legacy frame SSWB flush sill.
Legacy frame SSWB projected sill.
Legacy frame SSWB flush sill - with vent profiles.
Legacy frame SSWB projected sill - with vent profiles.
Legacy frame SSWB flush sill arched.

Frame accessories

Legacy SSWB sash bar horizontal.
LSSWB solid bar horizontal.
LSSWB sash bar vertical.
LSSWB solid bar vertical.

Seals

Weatherseal, brown/ black.
Weatherseal, white.

Fastener

Forged hook fastener locking narrow - polished brass.
Forged hook fastener locking narrow - polished brass (x2).
Forged hook fastener locking narrow - polished chrome.
Forged hook fastener locking narrow - polished chrome (x2).
Forged hook fastener locking narrow - satin chrome.
Forged hook fastener locking narrow - satin chrome (x2).
Forged hook fastener locking narrow - satin nickel.
Forged hook fastener locking narrow - satin nickel (x2).
Forged hook fastener locking narrow - antique brass.
Forged hook fastener locking narrow - antique brass (x2).
Fitch fastener locking narrow - polished brass.
Fitch fastener locking narrow - polished brass (x2).
Fitch fastener locking narrow - polished chrome.
Fitch fastener locking narrow - polished chrome (x2).
Fitch fastener locking narrow - satin chrome.
Fitch fastener locking narrow - satin chrome (x2).
Other.

Guidance for specification option:

Special fastener. Consult manufacturer for options and insert requirements.

Manufacturer guidance

Handle/ fastener.

Vent locks

No stops.
Lockable vent lock - polished chrome.
Lockable vent lock - polished brass.
Lockable vent lock - satin nickel.
Lockable vent lock - satin chrome.
Flush sash stops and strike plate - bronze.
Flush sash stops and strike plate - antique brass.
Push vent lock - brass.
Push vent lock - polished chrome.
Push vent lock - satin nickel.
Push vent lock - bronze.
Push vent lock - antique brass.
Special vent lock.

Guidance for specification option:

Consult manufacturer for options and insert requirements.

Bottom sash stops - lockable vent lock - polished chrome.
Bottom sash stops - lockable vent lock - polished brass.
Bottom sash stops - lockable vent lock - satin nickel.
Bottom sash stops - lockable vent lock - satin chrome.
Bottom sash stops - flush sash stops and strike plate - bronze.
Bottom sash stops - flush sash stops and strike plate - antique brass.

Window lifts

Sash lift curved neck - polished brass.
Sash lift curved neck - polished chrome.
Sash lift curved neck - satin chrome.
Sash lift curved neck - satin nickel.
Heavy curled sash lift – antique brass.
Special sash lift.

Guidance for specification option:

Consult manufacturer for options and insert requirements.

Window pulleys

Brass.
Polished chrome.
Satin chrome.
Antique brass.
Satin nickel.

Sill projection

Flush.
50 mm.
63 mm.
75 mm.
80 mm.
100 mm.
120 mm.
30 mm.
50 mm, loose.
75 mm, loose.
100 mm, loose.

Manufacturer guidance

With or without cill weathering groove.

Insert requirements.

Transom

Transom SSWB.

Mullion

Legacy mullion.

Accessories

None.
Glazing tape, 2x12, black - internal.
Glazing tape, 2x12, white - internal.
Glazing tape, 2x12, black - external.
Glazing tape, 2x12, white - external.
Internal window board groove @25.
Internal window board groove @38.

Integral accessories

Sash cord, white.
Sash cord, white - bottom sash.
Sash cord, black.
Sash cord, black - bottom sash.

Silicon sealant colour

Portland stone low silicone.
Mid grey silicone.
Buff low mid silicone.
Clear low mid silicone.
Anthracite silicone.
Dow corning white silicone.
French limestone silicone.
Black silicone.
Stone silicone.
Silfix white silicone.

Sustainability data

Contains Red List materials

No

Country of product manufacture

United Kingdom

Material

Glass
Timber

Expected Life

60 year

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
 -

1

IFC
 -

1

Product certifications

PAS 24

PAS 24

15521 - PART Q COMPLIANT CERTIFICATE

PAS 24

PAS 24

R15521 Security Testing

Weathertightness Testing

Weathertightness Testing

W15232-3 Weather Final Test Report

SRL

SRL

SRL Acoustic 23410 - T01

Literature

Westbury Colour Chart

Westbury Colour Chart

Sash Windows - Ironmongery Finishes

Sash Windows - Ironmongery Finishes

WWJ 2024-25 Brochure

WWJ 2024-25 Brochure

Case studies

Classic Georgian New Build

Classic Georgian New Build

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