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Single traditional box sash windows.
Suitable for non-listed buildings and contemporary developments.
Timber sash windows which embrace the all style and function of traditional box sash windows, yet are enhanced with modern construction and materials.
Features and benefits:
TRC Contracts Ltd offers robust guarantees on all TRC window ranges we supply and install. The following general terms apply on all new windows:
Colour from RAL classic range - standard, dual finish or stain - optional.
Available in dual finish, RAL classic range and stain. Insert requirements.
L10/10 Wood windows
L10/210 Wood windows
To EN 14351.
Dimensions and configurations
UK exposure category
The window is fully weather sealed to BS EN 6375-1.
To BS EN 1026, Class 4.
To EN 1027, 4A.
Resistance to wind load
To EN 1221, Class C4.
Operation and strength characteristics
To BS 6375-2
To PAS 24:2016.
Acoustic performance rating
36 (0;-3) dB.
Whole window U-value
To BS EN ISO 10077-1.
To BS EN 942.
100 x 160 mm (lining width x frame depth), manufactured using mortise and tenon joints, glued and mechanically fixed.
Chain of custody
For opaque finishing: to BS EN 942, J10 for glazing beads and drip mouldings .
Finish as delivered
Three coats of sprayed applied microporous water based TEKNOS paint system.
Preservative treatment to wood components
Concealed through frame head trickle ventilator.
Concealed through frame head trickle ventilator. 1700 mm², 4400 mm² or 5000 mm² air flow dependent on frame width.
Solid feature horns to top sashes are included as standard.
Glazing or infill
Relevant parts of BS EN 1279.
Factory glazed with 24 mm thickness dual sealed units.
A lockable Fitch fastener and two finger pulls to the bottom sash.
Consult manufacturer for colour and finish.
Manual. Sashes are hung on cords or chains, operating over pulleys and counter balanced with lead weights.
A lockable fitch fastener and two finger pulls to the bottom sash.
Internal Glazing Bars and/or Perimeter Bead
18 mm lambs tongue type 2.
18 mm ovolo profile type 2.
22 mm lambs tongue type 1.
22 mm ovolo profile type 1.
External Glazing Bars
18 mm chamfered putty bar.
22 mm chamfered putty bar.
24 mm double glass unit.
4 mm tough/ 16 mm argon/ 4 mm tough low-E.
24.8 mm sound control double glazed unit.
6.8 mm sound control laminated/ 14 mm argon/ 4 mm tough low-E.
Insert requirement, safety, obscured, acoustic or solar control glass options available.
Perimeter/Integral spacer bar
Black warm edge perimeter spacer and integral glazing bars within unit cavity.
Matt chrome warm edge perimeter spacer and integral glazing bars within unit cavity.
White warm edge perimeter spacer and integral glazing bars within unit cavity.
Antique brass sash fitch fastener, sash lifts, sash pulleys.
Brass sash fitch fastener, sash lifts, sash pulleys.
Oil rubbed bronze sash fitch fastener, sash lifts, sash pulleys.
Polished chrome sash fitch fastener, sash lifts, sash pulleys.
Satin chrome sash fitch fastener, sash lifts, sash pulleys.
Satin nickel sash fitch fastener, sash lifts, sash pulleys.
Selected Croft ironmongery with bespoke finish is available; consult manufacturer and insert requirement.
Traditional sash stop.
Sashes are hung on cords or chains, operating over pulleys and counter balanced with lead weights.
39 x 55 mm top rail and stiles, 90 x 55 mm bottom rail, 45 x 55 mm meeting rail.
200 mm wide (130 mm for triple sash with fixed outer sash).
54 x 160 mm.
Three coat spray applied factory finish using water based micro-porous paint/ stain.
RAL classic range
Engineered European oak.
Contains Red List materials
Country of material origin
Country of product manufacture
A1-A3 (production stage) as defined in BS EN 15804
0.5 kg CO₂ eq/kg
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.
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