double-glazedgarden-buildingoutward-openingsprucetimber-windowweatherproof

Double Window SDW-3

Double-glazed outward-opening timber window in 45mm spruce profile. 1326x1011mm overall size with rubber draught excluders and black hardware. Ideal for garden buildings.

Key specifications

Overall size: 1326 x 1011 mm
Clear glazed opening: 1146 x 796 mm
45mm solid spruce profile
Double glazing 4+6+4 with silicone sealant
Outward opening with allen-key adjustable hinges

45mm Spruce Double-Glazed Window for Timber Buildings

The SDW-3 is a double-glazed outward-opening timber window perfect for wooden buildings. Constructed from 45mm solid spruce profile, it combines natural warmth with dependable weatherproofing. It’s a practical, attractive choice for both standard and bespoke timber structures.

Durability and Weather Resistance

The SDW-3 features double-glazed 4+6+4 units sealed with silicone sealant, providing effective thermal and acoustic performance. Rubber draught excluders are fitted throughout to guard against wind and water ingress, while the spruce casing is finished with rubber sealants for an additional layer of protection.

Precision Hardware and Easy Adjustment

Hinges are supplied with decorative black covers and can be fully adjusted using a standard allen key, allowing precise alignment during and after installation. A black high-quality handle completes the fitting. All hardware is selected for long-term reliability in outdoor timber applications.

Specifications

Width

132.6 cm

Height

101.6 cm

Applications

Windows, Doors & Architectural Joinery

Upgrade your property with high-performance operational elements. Our range of premium and standard windows and doors offers excellent thermal efficiency and aesthetic appeal for both new builds and renovations. Beyond the units themselves, we supply the specialized timber components needed for architectural joinery, allowing for custom fitting, frame construction, and the creation of unique entrances that make a lasting first impression.

Why choose Double Window SDW-3?

Double-Glazed

The 4+6+4 double-glazed unit with silicone sealant provides effective insulation against heat loss and external noise. This makes the SDW-3 well-suited for garden buildings used beyond the warmest summer months.

Wind and Waterproof Sealing

Rubber draught excluders are fitted around the full perimeter of the opening sash, while the spruce casing incorporates rubber sealants to prevent wind and water penetration.

Solid Spruce Construction

The 45mm spruce profile offers excellent dimensional stability and a natural aesthetic that complements log cabin and timber frame buildings. The wood grain and texture may vary slightly between units, reflecting the natural characteristics of solid spruce.

Outward Opening Design

The outward-opening configuration maximises usable interior space and suits the ventilation requirements of garden rooms, summer houses, and hobby buildings. The black high-quality handle provides a secure, comfortable grip.

Frequently Asked Questions

The SDW-3 has an overall frame size of 1326 x 1011 mm. The clear glazed opening measures 1146 x 796 mm.

The SDW-3 is fitted with double-glazed 4+6+4 units sealed with silicone sealant.

Yes. The hinges are fully adjustable using a standard allen key, allowing precise alignment of the sash both during and after installation.

The SDW-3 is supplied with a black high-quality handle and black decorative hinge covers.

Quality Materials Inside

Sawn Timber: Pine and Spruce for Construction

Discover our high-quality sawn timber from pine and spruce, ideal for construction with natural moisture, eco-friendly properties, and versatile sizing options.

Glued (Laminated) Wooden Beams and Boards

Discover glued wooden beams and boards made from pine and spruce, offering high moisture resistance, load capacity, and splinter-free handling for furniture, stairs, and windows.

Solid Glued (Laminated) Spruce Panels

High-quality solid glued panels made from premium spruce, available in various thicknesses, lengths, and widths, with hand-planed and sorted finishes for superior quality.

BS 2482:2009 Certified Scaffold Boards

Compliant with BS 2482:2009, our scaffolding boards feature metal plate clamping and come in multiple sizes for versatile construction applications.

Sawn Timber: Pine and Spruce for Construction

Discover our high-quality sawn timber from pine and spruce, ideal for construction with natural moisture, eco-friendly properties, and versatile sizing options.

Glued (Laminated) Wooden Beams and Boards

Discover glued wooden beams and boards made from pine and spruce, offering high moisture resistance, load capacity, and splinter-free handling for furniture, stairs, and windows.

Solid Glued (Laminated) Spruce Panels

High-quality solid glued panels made from premium spruce, available in various thicknesses, lengths, and widths, with hand-planed and sorted finishes for superior quality.

BS 2482:2009 Certified Scaffold Boards

Compliant with BS 2482:2009, our scaffolding boards feature metal plate clamping and come in multiple sizes for versatile construction applications.

Other Wooden Houses

Windows & Doors

Premium Window GW-4

Premium 878×1981mm tilt-and-turn timber window with 68mm laminated pine profile and 4+16+4 LowE glazing. U-value 1.1, MACO hardware, for garden buildings.

Windows & Doors

Premium Wooden Window GW-1

High-performance 68mm glued pine window (878 x 1171 mm) featuring a tilt-and-turn mechanism. Includes double glazing and factory-fitted rubber sealants.

Windows & Doors

Single Door SD-2

Solid spruce single door with 45mm profile, laminated anti-warp construction, rubber draught seals, and adjustable hinges. Engineered for timber garden buildings.

Windows & Doors

Fixed Window SFW-6

Fixed timber window, 1466x1011mm, 45mm spruce profile with double glazing and silicone sealant. Compatible with log cabin and garden building kits.

Windows & Doors

Single Window SW-2

Solid spruce outward-opening window with 45mm laminated profile, double-glazed 4+6+4 ESG units, and rubber draught excluders. B2B timber window for garden buildings.

Windows & Doors

Single Door SD-3

Single, outward opening door, 886×2053mm. Made of 45mm laminated anti-warp spruce and double-glazed ESG. Ideal for timber garden buildings.

Windows & Doors

Premium Window GDW-3

High-specification 68mm glued pine tilt-and-turn window (878x766mm). Features double glazing and integrated rubber sealants for superior insulation.

Windows & Doors

Fixed Window SFW-5

Spruce fixed window SFW-5, 886 x 1956mm with 45mm profile and double glazing. Compatible with Dadsons timber structures. Request a trade quote.

Windows & Doors

Single Door SD-5

Timber single door SD-5 with 45mm spruce profile, double-glazed upper panel, outward opening. 886x2053 mm.

Windows & Doors

Double Door SDD-4

Solid spruce double door SDD-4, 1416 x 2053mm overall. 45mm laminated profile, adjustable hinges, rubber weather seals and aluminium threshold. B2B supply across Europe.

Premium Window GW-4

Premium 878×1981mm tilt-and-turn timber window with 68mm laminated pine profile and 4+16+4 LowE glazing. U-value 1.1, MACO hardware, for garden buildings.

Premium Wooden Window GW-1

High-performance 68mm glued pine window (878 x 1171 mm) featuring a tilt-and-turn mechanism. Includes double glazing and factory-fitted rubber sealants.

Single Door SD-2

Solid spruce single door with 45mm profile, laminated anti-warp construction, rubber draught seals, and adjustable hinges. Engineered for timber garden buildings.

Fixed Window SFW-6

Fixed timber window, 1466x1011mm, 45mm spruce profile with double glazing and silicone sealant. Compatible with log cabin and garden building kits.

Single Window SW-2

Solid spruce outward-opening window with 45mm laminated profile, double-glazed 4+6+4 ESG units, and rubber draught excluders. B2B timber window for garden buildings.

Single Door SD-3

Single, outward opening door, 886×2053mm. Made of 45mm laminated anti-warp spruce and double-glazed ESG. Ideal for timber garden buildings.

Premium Window GDW-3

High-specification 68mm glued pine tilt-and-turn window (878x766mm). Features double glazing and integrated rubber sealants for superior insulation.

Fixed Window SFW-5

Spruce fixed window SFW-5, 886 x 1956mm with 45mm profile and double glazing. Compatible with Dadsons timber structures. Request a trade quote.

Single Door SD-5

Timber single door SD-5 with 45mm spruce profile, double-glazed upper panel, outward opening. 886x2053 mm.

Double Door SDD-4

Solid spruce double door SDD-4, 1416 x 2053mm overall. 45mm laminated profile, adjustable hinges, rubber weather seals and aluminium threshold. B2B supply across Europe.