Description
Upgrade your next project with these premium British Larch Planed Boards, expertly machined in-house by a skilled UK manufacturing team.
Measuring 6" x 1" (145mm x 19mm), these beautifully smooth planed boards combine the strength and character of home-grown Larch with a refined, modern finish — ideal for sheds, outbuildings, fencing, and garden offices.
Sourced from sustainable British woodlands, often in Devon, this Larch is a durable, eco-friendly choice that showcases natural charm while reducing transport miles and carbon footprint.
Key Features
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Made from British Home-Grown Larch / Douglas Fir Mix – sustainable and Devon sourced.
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Planed Smooth Finish – clean, professional appearance for modern projects.
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Ruby In-House Manufacturing – consistent, high-quality finish every time.
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Naturally Durable & Rot-Resistant – ideal for exposed areas and long-lasting use.
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Sustainable & Eco-Friendly – British-grown timber reduces carbon impact.
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Free Samples Available – see the quality before you buy.
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Versatile Application – perfect for sheds, cladding, fencing, and exterior joinery.
Specifications
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Width: 145mm (finished size)
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Thickness: 19mm (finished size)
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Lengths: 15cm sample, 1.8m (6ft), 2.4m (8ft), 3.6m (12ft), 4.8m (16ft)
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Face Coverage: 145mm
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Overlap: 0mm
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Weight: Approx. 3.0kg per board
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Timber Type: Home-Grown Larch / Douglas Fir Mix
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Surface Finish: Smooth Planed
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Treatment: Untreated – Naturally Durable (Durability Class 3)
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Maintenance: Osmo UV Oil recommended annually to maintain colour
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Origin: UK (often Devon)
Applications
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Garden offices and outbuildings
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Sheds, summerhouses, and garages
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Timber cladding and fencing
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Decorative and structural exterior projects
Why Choose British Larch?
British Larch is one of the toughest and most durable softwoods available in the UK. Its dense grain and natural resins provide excellent resistance to decay and weathering — no need for chemical treatment. The wood’s warm reddish tones and natural knots create a unique rustic aesthetic that gradually weathers to a soft silver-grey, maintaining timeless appeal.
Compared to imported Larch, home-grown varieties feature a more open grain and natural variation, giving a beautiful, character-rich finish that many customers prefer.
Installation & Maintenance
These planed Larch boards are easy to install using stainless steel fixings to prevent corrosion.
For best results:
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Apply UV-protective oil once or twice a year (we recommend Osmo Oil)
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Allow 5–10% wastage for cuts and natural movement
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Follow our detailed Cladding Install Guide for step-by-step fitting advice
Delivery & Samples
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Typical delivery within 3–7 working days
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Free samples available to test quality and finish
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Bespoke lengths available – contact our sales team.
Frequently Asked Questions
1. What are 6" x 1" planed Larch boards used for?
6" x 1" planed Larch boards are commonly used for exterior cladding, fencing, garden rooms, sheds, and joinery projects where a smooth and refined timber finish is desired.
2. Is British Larch suitable for outdoor use?
Yes. British Larch is a naturally durable softwood containing resins that make it resistant to moisture, decay, and insect attack, making it ideal for outdoor structures.
3. Does Larch timber need to be treated?
Treatment isn’t essential, but applying a UV-protective oil or wood stain (such as Osmo UV Oil) will help preserve its warm reddish tones and extend its lifespan in exposed areas.
4. How long does planed Larch timber last?
When correctly installed and maintained, planed Larch timber can last 15–30 years depending on exposure and maintenance routine.
5. What’s the difference between planed and sawn Larch boards?
Planed boards have a smooth, even surface ideal for visible applications like cladding or fencing, while sawn boards have a rougher texture suited for rustic or structural projects.
6. Can British Larch be used indoors?
Yes. Although most often used externally, planed Larch can be used internally for feature walls, joinery, and decorative finishes, providing a warm and natural look indoors.
7. How does British Larch weather over time?
Uncoated Larch naturally changes from a reddish-brown colour to a silver-grey patina when exposed to sunlight and rain. This weathering process is purely cosmetic and does not affect durability.
8. What fixings are recommended for planed Larch boards?
Use stainless steel screws or nails to prevent rust staining and ensure long-term durability, particularly in outdoor or coastal environments.
9. What is the difference between home-grown and imported Larch?
Home-grown Larch typically has a more open grain and prominent knots, giving a rustic and natural appearance. Imported varieties have a tighter grain and smoother consistency. Both are strong and weather-resistant.
10. How should planed Larch timber be maintained?
To maintain colour and performance, apply a UV-protective oil once or twice a year and keep surfaces clean of debris. Regular care ensures the wood remains stable and visually appealing for decades.
Payment & Security
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Request Samples
To request samples, please visit this page and fill out your details.
Some of Our Service Reviews
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
Read more reviews here.
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