Description
With its strong horizontal lines and open slatted roof, this pergola delivers a minimalist look while still offering practical shade and comfort for everyday outdoor living.
Built from high-quality, pressure-treated timber, the structure is engineered for long-term performance in all weather conditions, making it a reliable and stylish addition to your outdoor setup.
Open Roof for Light & Atmosphere
The flat, open roof design allows sunlight to filter through naturally, creating a relaxed balance of shade and openness. It’s ideal for enjoying warm days outdoors while still offering enough coverage for dining, seating, or entertaining areas.
This design also lends itself perfectly to personalisation—whether that’s trailing plants, outdoor lighting, or decorative features that evolve with your garden.
Strong, Modern Construction
This unique pergola uses 6" x 6" posts and 4" x 2" beams to provide outstanding strength and stability once securely fixed.
The rough-sawn timber finish adds texture and character, giving the pergola a premium, natural appearance.
Key Benefits:
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Flat roof pergola with open slatted design
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Pressure-treated timber for rot resistance and low maintenance
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Heavy-duty posts and beams for excellent structural strength
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Supplied in kit form for straightforward installation
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Bespoke sizing available to suit your exact space
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All fixings included
Made to Fit Your Garden
With a wide range of standard sizes and custom dimensions available, this pergola can be tailored precisely to your layout—whether you’re enhancing a compact patio or defining a larger outdoor area.
Installation & Safety Guidance
This pergola is not suitable for freestanding installation. For safety and long-term stability, it must be securely anchored into the ground using an appropriate fixing method. Correct installation ensures optimal performance and durability.
Specifications Overview
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Depth (Back to Front): 1.8m to 4.2m (custom sizes available)
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Width (Front): 1.8m to 4.2m
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Post Height: 2320mm
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Overall Height: 2320mm
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Post Size: 150mm x 150mm
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Roof Rafters: 100mm x 47mm
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Ring Beam: 150mm x 47mm
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Collars: 100mm x 47mm
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Roof Type: Open slatted
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Front & Rear Overhang: 300mm
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Side Overhang: 300mm
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Timber Finish: Rough sawn
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Treatment: Fully pressure treated
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Fixings: Included
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Guides: Written instructions and video install guide
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Approx. Weight: 240kg
FAQs – Flat Roof Wooden Pergola with Open Slatted Roof
Product
Are all pergola components treated for outdoor use?
Yes. All structural timber elements are fully pressure treated to help protect against rot, moisture, and insect damage. Roofing components may vary depending on the configuration selected.
Can this pergola be made to custom sizes?
Yes. Bespoke sizing is available, allowing the pergola to be manufactured to fit your exact garden or patio dimensions.
Installation
Does the pergola arrive fully assembled?
No. The pergola is supplied in kit form for easier transport and handling. Detailed written instructions and a video installation guide are provided to support both DIY installation and professional fitting.
Are fixings included with the pergola kit?
Yes. All necessary fixings required for assembly and installation are included with your order.
Can the pergola be installed as a freestanding structure?
No. For safety and stability, the pergola must be securely fixed into the ground using an appropriate fixing method.
Aftercare & Maintenance
Can I paint or stain the pergola?
Yes. Once the timber has fully dried, you can apply a water-based paint, stain, or protective finish. Applying UV protection beforehand is recommended to maintain the appearance of the timber.
What ongoing maintenance is required?
To maintain performance and appearance, we recommend treating the pergola approximately every 6 months with a suitable wood oil and periodically cleaning away dirt and debris.
How long can I expect the pergola to last?
With correct installation and regular maintenance, a pressure-treated wooden pergola can typically last between 10 and 20 years, depending on exposure and care.
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This company deserves more than 5 stars
This company deserves more than 5 stars! Brilliant help & communication by the staff there. My purchase was delivered the next day. can't fault them at all. Thank you
Date of experience: 21 February 2024
Made up with the cladding and…
Made up with the cladding and corrugated roof sheets
Delivered early which was a bonus
All the sheets were not damaged
And l must say cheapest around
Spot on
Will defo use again
Date of experience: 17 October 2023
Cladding
Very pleased with my grey composite cladding. Staff helpful, free samples received, confirming a good product at a fair price, leading to my purchase.
Date of experience: 11 June 2023
Help with my new garage roof!
Trade Warehouse could not have been more helpful. They very patiently guided a roofing newbie through all of the stuff I would need to do the job and provided helpful tips along the way. It's rare to find a company offering such a fantastic level of customer service as standard. I would highly recommend them and will certainly use them again.
Date of experience: 23 August 2023
Garden Storage
My contractor (Charlie Keep) recommended you to me so I could order the materials online for delivery direct to my home. These were for a project to construct a Garden Storage Area. The materials were perfect and the whole process was simple and slick with materials delivered on time and very well packaged. Charlie has since completed the project & I am very happy with the outcome.
Date of experience: 20 August 2023
Right product, right price, right delivery.
Right product, right price, right delivery. Sure, it was only one length of cast iron guttering but they took the order seriously, packed it well and kept me updated on delivery. And when I opened the very good packaging I found it was exactly what I had wanted. How can you do better!!
Date of experience: 31 January 2023
Fast
Fast , efficient service
Date of experience: 12 September 2023
It was exactly what I wanted
It was exactly what I wanted. Arrived in good order
Perfect
Date of experience: 16 September 2023
Straight forward and helpful with…
Straight forward and helpful with making the order. Delivery guy was friendly and was helpful in bringing the sheets into the back yard (was only a few). Really happy and would highly recommend!!!
Date of experience: 27 August 2023
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