Dalfsen Modern DIY Douglas Gazebo 6.0 x 3.0m
Create an all-weather garden sanctuary with our bestselling Dalfsen 6.0 × 3.0 m Douglas Timber Gazebo with 3 Enclosed Walls. Crafted from high-grade European Douglas fir, this popular flat-roof garden pavilion features heavy-duty 15 × 15 cm square timber posts, solid 18 mm tongue-and-groove roof boards, and three enclosed sides made from broad 19.5 cm feather-edge cladding.
Offering 18 square metres of protected space with a generous 235 cm walk-through height, the Dalfsen easily accommodates a large outdoor dining suite, corner lounge sofa, and barbecue kitchen. Available in two finishes: Untreated Natural Timber Walls or contemporary Factory-Treated Black Cladding Walls.
- Overall Dimensions: 600 cm (W) × 300 cm (D) × 262 cm (H)
- Generous Headroom: 235 cm clear walk-through height under the front beam
- Heavy-Duty Framework: 6 × solid 150 × 150 mm fine-sawn Douglas fir uprights
- Three Enclosed Walls: Clad in substantial 19.5 cm wide Swedish feather-edge (potdeksel) timber planks for wind and privacy protection
- Premium Roof Construction: 18 mm double-lip tongue-and-groove boards with 50 × 150 mm roof beams and wide fascia
- Finish Options: Available with untreated natural Douglas walls or modern black-treated walls
- DIY Self-Build Kit: Complete timber and hardware package with assembly drawings (timbers cut to size on site)
Create an all-weather garden sanctuary with our bestselling Dalfsen 6.0 × 3.0 m Douglas Timber Gazebo with 3 Enclosed Walls. Crafted from high-grade European Douglas fir, this popular flat-roof garden pavilion features heavy-duty 15 × 15 cm square timber posts, solid 18 mm tongue-and-groove roof boards, and three enclosed sides made from broad 19.5 cm feather-edge cladding.
Offering 18 square metres of protected space with a generous 235 cm walk-through height, the Dalfsen easily accommodates a large outdoor dining suite, corner lounge sofa, and barbecue kitchen. Available in two finishes: Untreated Natural Timber Walls or contemporary Factory-Treated Black Cladding Walls.
- Overall Dimensions: 600 cm (W) × 300 cm (D) × 262 cm (H)
- Generous Headroom: 235 cm clear walk-through height under the front beam
- Heavy-Duty Framework: 6 × solid 150 × 150 mm fine-sawn Douglas fir uprights
- Three Enclosed Walls: Clad in substantial 19.5 cm wide Swedish feather-edge (potdeksel) timber planks for wind and privacy protection
- Premium Roof Construction: 18 mm double-lip tongue-and-groove boards with 50 × 150 mm roof beams and wide fascia
- Finish Options: Available with untreated natural Douglas walls or modern black-treated walls
- DIY Self-Build Kit: Complete timber and hardware package with assembly drawings (timbers cut to size on site)
Bestselling Outdoor Luxury: The Dalfsen 6 x 3 m Gazebo
The Dalfsen DIY Douglas Timber Gazebo (600 x 300 x 262 cm) is one of our most popular outdoor garden structures, engineered for homeowners who want serious weather protection, complete garden privacy, and exceptional value. By enclosing three full sides with substantial timber cladding, the Dalfsen creates a true outdoor room—sheltering you from chilly breezes and rain so you can enjoy your garden across all four seasons.
With an expansive six-metre width and three-metre depth, the interior provides ample room for a complete garden setup: position a deep-seated modular corner sofa at one end and a family dining table or garden bar at the other.
Three Enclosed Feather-Edge Walls for Ultimate Shelter
Unlike open-sided pergolas, the Dalfsen includes three full timber walls constructed from 19.5 cm wide Swedish feather-edge (potdeksel) boards. This overlapping timber profile sheds driving rain and blocks crosswinds, turning your patio into a cosy, private haven sheltered from neighbouring sightlines.
Chunky 15 x 15 cm Douglas Fir Uprights
Built for long-term stability and strength, the Dalfsen stands on six heavy-duty 150 x 150 mm (15 x 15 cm) square posts linked with 50 x 150 mm ring beams and diagonal corner braces. Sourced from slow-grown, heartwood-rich European Douglas fir, the timber is dense and naturally resinous. The frame is supplied fresh-sawn and fine-sawn, delivering an authentic architectural presence.
Solid 18 mm Boarded Flat Roof
Instead of cheap OSB or plywood sheeting, the Dalfsen comes equipped with solid 18 mm double-lip tongue-and-groove timber roof decking supported by heavy 5 x 15 cm purlins and framed by wide 2.5 x 25 cm perimeter fascia boards. This heavy timber roof dampens rainfall noise and creates a stable, long-lasting deck for modern waterproofing.
Finish Choices: Natural Untreated or Contrast Black
Select the look that best matches your garden design:
- Natural Untreated Timber: Uniform, golden-warm Douglas fir throughout. Ideal for traditional gardens, or ready to be stained in your choice of translucent wood preserver.
- Treated Black Walls: The frame remains natural Douglas fir, contrasted against sleek black-treated wall cladding for a striking, modern two-tone aesthetic.
Modular DIY Construction Kit
Supplied as an adaptable Do-It-Yourself (DHZ) timber kit, the Dalfsen offers unbeatable value for competent DIYers, carpenters, and landscaping contractors. Timber parts are supplied un-notched and slightly over-length to allow exact on-site cutting, ensuring the building aligns perfectly with your patio levels and wall angles. The package includes:
- 6 x 15 x 15 cm fine-sawn Douglas upright posts
- Roof rafters and ring beams (5 x 15 cm) plus 2.5 x 25 cm perimeter fascia boards
- Solid 18 mm double-lip tongue-and-groove roof boards and diagonal braces
- 19.5 cm wide feather-edge timber cladding boards for 3 enclosed walls
- Complete metal fixing hardware pack (screws, bolts, and fasteners)
- Clear, detailed architectural assembly plans
Recommended Installation Notes & Accessories
- Foundation Anchors: For maximum stability and to prevent moisture uptake, mount the six posts on straight concrete post anchors (betonpoeren) bedded in rapid-setting post-mix cement.
- Wall Base Support: Seat the timber wall panels on 6 x 20 x 100 cm concrete gravel boards. Straight concrete piers allow gravel boards to fit flush without gaps, keeping timber safely above wet soil or patio pooling.
- Roof Waterproofing (Required): Supplied without roof covering as standard. We recommend our heavy-duty EPDM rubber membrane kit (with contact adhesive and extra spray adhesive) or self-adhesive Easyroofing foil, finished with clean aluminium or anthracite edge trims.
- Flooring Ideas: Complement your gazebo with contemporary porcelain patio paving, tumbled concrete setts, or natural timber decking boards laid lengthways to accentuate the 6-metre width.
Model Specifications Overview
- Overall External Dimensions: 600 cm (W) x 300 cm (D) x 262 cm (H)
- Walk-Through Clearance Height: 235 cm
- Post Dimensions: 15 x 15 cm (6 uprights included)
- Span Between Posts: 270 cm
- Structural Rafters & Beams: 5 x 15 cm
- Fascia Boards: 2.5 x 25 cm
- Wall Design: 3 enclosed walls with 19.5 cm wide feather-edge cladding
- Roof Style: Modern flat roof with 18 mm double-lip T&G decking
- Roof Covering: Excluded as standard (EPDM or Easyroofing recommended; approx. 18 m² area)
- Assembly Type: DIY timber kit (cut to size on site)


