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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.

Key specifications

Overall size: 886 × 1918mm
Clear opening: 706 × 1749mm
45mm spruce profile construction
Double glazing: 4+6+4 ESG with silicone sealant
Outward opening with adjustable hinges

Spruce Timber Door Built for Outdoor Performance

The SD-3 Low is a precision-made outward-opening single timber door for garden buildings, log cabins, and summerhouses. Frame size is 886×1918mm, with a clear opening of 706×1749mm.

Anti-Warp Engineering

Built from 45mm spruce profiles, it uses laminated spruce on components over 160cm to reduce warping and seasonal movement while keeping a solid-timber look.

Weather-Proof from Day One

For all-weather use, it includes 4+6+4 ESG double glazing, silicone sealing, rubber draught seals, a spruce casing with rubber gaskets, and an aluminium threshold strip for extra protection at the base. Fully adjustable hinges (set with a standard allen key) allow accurate alignment over time, with black covers for a clean finish.

Specifications

Width

88.6 cm

Height

191.8 cm

Doors

Applications

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.

Storage & Utility

Keep your property organized and clutter-free with efficient storage solutions. Our range covers everything from compact garden sheds for tools to spacious logistical buildings. Use our sturdy structural timber to build custom shelving and heavy-duty storage units, or choose a ready-made wooden shed that combines practicality with aesthetic appeal to complement your garden design.

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 Single Door SD-3 Low?

Laminated Anti-Warp Construction

All spruce components exceeding 160cm in length are manufactured from laminated spruce, combining the visual appeal of solid timber with superior resistance to warping. This engineering detail ensures the door maintains its fit and function through years of outdoor use across varying climates.

Double-Glazed Weather Sealing

The door features 4+6+4 ESG double glazing sealed with silicone, paired with rubber draught excluders and a rubber-sealed spruce casing. Together these elements create an effective barrier against wind and water infiltration, suitable for year-round installation in Northern and Western European conditions.

Fully Adjustable Hinge System

Hinges can be precisely adjusted using a standard allen key, enabling correct alignment during installation and allowing future fine-tuning without specialist tools. Black decorative hinge covers provide a clean, professional finish that complements natural timber building aesthetics.

Aluminium Threshold Protection

An aluminium strip protects the door threshold from wear, moisture, and mechanical damage — extending the service life of the door in high-use residential and commercial garden building applications.

Frequently Asked Questions

The SD-3 Low has an overall frame size of 886mm wide by 1918mm tall. The clear door leaf opening measures 706mm wide by 1749mm tall.

The door is fitted with 4+6+4 ESG (enhanced safety glass) double glazing, sealed with silicone sealant.

All wooden parts longer than 160cm are manufactured from laminated spruce rather than solid timber. This technique retains the visual character of natural wood while substantially reducing the risk of warping caused by moisture and temperature changes.

The SD-3 Low is an outward-opening door.

Yes. The hinges are fully adjustable using a standard allen key, allowing the door to be precisely aligned at the time of installation and re-adjusted as needed over the door’s service life. Decorative black covers are supplied to conceal the hinge mechanism.

The SD-3 Low is designed to be compatible with Dadsons timber structures. Partners and resellers can specify this door as part of a complete building package.

The SD-3 Low includes rubber draught excluders for wind and water resistance, a rubber-sealed spruce casing, silicone-sealed double glazing, and an aluminium threshold strip.

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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Fixed Window SFW-5

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Premium Window GW-2

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Door GD-1

Premium wooden door (1290 x 2072 mm) manufactured from Nordic spruce. Features a robust frame design and high-quality hardware for secure garden building access.

Vitrine Window SFW-2

Fixed square timber window (571 x 606 mm) with double glazing. Manufactured from Nordic spruce for 44mm log structures.

Single Window Model SW-1

Premium wooden single window (886 x 1271 mm) for 44mm garden buildings. Features double glazing, weather strips, and Nordic spruce frame. Hardware included.

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.

Standard Double Door SDD-1

Premium spruce double door (1416 x 2043 mm) designed for 44mm log structures. Features classic wooden construction and durable hardware.

Premium Window GDW-3

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