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Double Door GDD-1

A premium laminated pine double door with a clean, modern profile and full-height glazing. Two large glass panels bring in maximum daylight, while the solid lower rails add strength and a grounded, finished look. Outward opening, weather-sealed.

Key specifications

Overall dimensions: 1854 x 2072 mm
Clear opening: 1508 x 1826 mm
4+16+4 Low-E ESG + Argon glazing, U-value 1.1
MACO 3-point security lock and adjustable hinges
Outward opening, rubber draught excluders included

Premium Laminated Pine Double Door with MACO Hardware

The GDD-1 is a premium outward-opening double door for use in timber garden buildings, log cabins, and summerhouses. Constructed from 68mm finger-jointed and laminated pine, it combines structural rigidity with the natural aesthetics of Nordic timber — making it a seamless match for Dadsons log cabin structures.

Performance and Security

At the core of the GDD-1 is a high-quality MACO 3-point locking system, delivering reliable security across the full height of the door frame. Adjustable MACO hinges allow precise alignment on installation and long-term adjustment as the timber naturally acclimates to its environment.

Thermal and Weather Performance

The two 4mm tempered glass panes are separated by a 16mm cavity (4+16+4) filled with Argon gas, which provides better insulation than air. One pane features a microscopically thin coating that reflects heat, enhancing energy efficiency by reducing thermal transfer (LowE). The silicone sealant ensures the unit remains airtight and watertight throughout its life. Overall, the composition achieves a U-value of 1.1. Rubber draught excluders on all sides deliver effective wind and water resistance, while an aluminium threshold strip protects the base against wear and moisture ingress. The spruce casing is finished with rubber sealants to ensure a weather-tight perimeter seal.

Dimensions and Delivery

The door unit measures 1854mm wide and 2072mm tall (overall frame), with a clear opening of 1508mm wide and 1826mm tall. All components are delivered as a pre-assembled, ready-to-fit unit.

Specifications

Width

185.4 cm

Height

207.2 cm

Doors

Applications

Garage & Vehicle Protection

Safeguard your vehicles and equipment from the elements with our robust protection solutions. Whether you need a secure double garage, an open-sided carport, or a boat shelter, we have you covered. Our pre-cut garage kits allow for quick assembly, while our structural timber beams and cladding provide the strength and durability required for custom-built vehicle storage projects.

Garden Retreat & Outdoor Living

Enhance your lifestyle by extending your living area into nature. Create a serene sanctuary for relaxation, reading, or yoga with our garden structures. Our durable timber decking, pergolas, and summer houses transform your garden into a functional outdoor living room. Experience the tranquility of natural wood and create a dedicated space for leisure and family enjoyment.

Guest Accommodation & Hospitality

Expand your living space and welcome visitors in style with high-quality guest accommodation. From cozy backyard cabins for family visits to premium holiday rental units for Airbnb, we provide the essential foundation. Our complete wooden houses offer turnkey convenience, while our structural timber ensures robust frameworks for custom hospitality projects and extensions.

Home Office & Creative Studio

Create the perfect productive environment just steps from your home. Whether you need a distraction-free home office, an inspiring art studio, or a craft workshop, our solutions offer the ideal space. Choose from our range of ready-made garden buildings or utilize our premium timber materials to construct a bespoke workspace designed for year-round comfort and professional focus.

Workshops & Hobby Rooms

Dedicate a robust space to your passions with our heavy-duty workshop solutions. Whether you are into woodworking, mechanics, or pottery, our "Active" line of garages and reinforced cabins offers the strength and space you need. With solid floors, thick walls for tool mounting, and ample room for workbenches, these buildings provide a secure and durable environment for all your hands-on projects and loud machinery.

Why choose Double Door GDD-1?

MACO 3-Point Security Locking

The GDD-1 is fitted with a premium 3-point lock from the MACO brand, engaging the frame at three points for superior security and reduced flex under load. Adjustable MACO hinges allow fine-tuning at installation and re-adjustment over the door's lifetime.

All-Weather Sealing System

Rubber draught excluders fitted around the entire door perimeter block wind and water ingress, while an aluminium threshold strip at the base provides durable protection against wear and moisture. The spruce casing is sealed with rubber sealants for a fully weather-tight installation. Double glazing with a 4+16+4 Low-E ESG + Argon composition achieves a U-value of 1.1, significantly reducing heat loss through the glazed panels.

Laminated Pine Construction

The 68mm finger-jointed and laminated pine profile delivers superior dimensional stability compared to solid timber, resisting warping and twisting across seasonal humidity changes. This ensures consistent operation and a reliable seal year after year.

Wide Double-Leaf Opening

With a clear opening width of 1508mm, the GDD-1 provides generous, practical access — ideal for garden rooms, garages, and summerhouses where moving furniture, equipment, or bicycles is required. The outward-opening design maximises usable interior space.

Frequently Asked Questions

The overall frame measures 1854mm wide by 2072mm tall. The clear opening (unobstructed passage width and height) is 1508mm wide by 1826mm tall.

The GDD-1 is constructed from 68mm finger-jointed and laminated pine. This engineered timber profile offers greater dimensional stability than solid wood, reducing the risk of warping or twisting over time.

The GDD-1 features 4+16+4 Low-E ESG + Argon double glazing with a U-value of 1.1. The Low-E coating and argon gas fill work together to minimise heat transfer, making the door suitable for thermally efficient buildings.

The GDD-1 is an outward-opening double door. This design is standard for garden buildings and maximises usable interior floor area by keeping the door swing outside the structure.

The GDD-1 includes a high-quality 3-point lock from MACO, a leading European hardware brand. Adjustable MACO hinges are also included, allowing precise alignment both at initial installation and as required over time.

Rubber draught excluders are fitted around the full door perimeter to block wind and water penetration. An aluminium threshold strip protects the bottom edge, and the spruce casing is finished with rubber sealants for a weather-tight seal.

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.

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Standard Double Window SDW 2

Tall format 1326 x 1686 mm double-glazed wooden window. Manufactured from Nordic spruce for 44mm and 68mm log cabin walls. Tilt-and-turn functionality.

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Premium Single Door GD-2

A clean, solid timber door with a warm natural finish and a simple three-panel design. It comes pre-hung in a matching wooden frame, with black hinges and a black lever handle for a crisp, modern contrast. Outward opening, 1054 x 2072 mm. Ideal for timber garden buildings.

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Sliding Door ALU-SLD-1

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Single Door SD-5

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Premium Tilt-and-Turn Window GDW-4

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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 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.

Standard Double Window SDW 2

Tall format 1326 x 1686 mm double-glazed wooden window. Manufactured from Nordic spruce for 44mm and 68mm log cabin walls. Tilt-and-turn functionality.

Premium Single Door GD-2

Sliding Door ALU-SLD-1

Two-panel sliding door with aluminium frame, 4mm tempered glass, and spruce casing. Precision-engineered for timber garden buildings. Request a trade quote.

Single Door SD-3 Low

Single, outward opening door, 886×1918mm. Made of 45mm laminated anti-warp spruce and double-glazed ESG. Ideal for timber garden buildings.

Garage Door SGD-2

Double-leaf timber garage door SGD-2. Spruce construction with steel hinges, rubber draught excluders, and outward opening design. 2576x2113mm. B2B supply across Europe.

Single Door SD-5

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

Double Door SDD-3

Solid spruce double door with 45mm profile, double glazing, and adjustable hinges. 1416x2053 mm. Outward opening, weather-sealed, and built for timber garden buildings.

Premium Tilt-and-Turn Window GDW-4

High-performance 68mm glued pine window (878x1981mm) with double glazing and tilt-and-turn mechanism. Includes cover boards and professional rubber sealing.

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.