Description
These 4m European Larch Wood Cladding 145mm x 18mm Shadow Gap Boards are designed to deliver a sleek, contemporary finish while offering exceptional durability for exterior timber projects. Manufactured from slow-grown Northern European Larch, this naturally robust softwood is highly resistant to decay, making it an ideal choice for modern building façades, garden rooms and architectural features.
The 145mm x 18mm shadow gap profile creates crisp, clean shadow lines that add depth and texture to walls and surfaces. With 135mm face coverage, these boards provide efficient coverage while maintaining the striking linear aesthetic that shadow gap cladding is known for.
Supplied untreated, European Larch develops a beautiful natural patina, transitioning from warm golden-brown tones to a refined silver-grey over time. To maintain the original colour and improve protection against weathering, UV exposure, cracking and movement, we recommend applying a high-quality OSMO stain.
This profile is precision-machined and planed smooth for ease of installation and a flawless finished look. European Larch Shadow Gap cladding is suitable for both horizontal and vertical installation, creating a modern architectural appearance for residential and commercial projects.
Product Specifications
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Material: European Larch
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Minimum Order: 100 linear metres (orders below this quantity will be cancelled due to machining requirements)
Smaller quantities available in British Cedar, British Larch or Treated Redwood -
Width: 145mm
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Thickness: 18mm
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Face Coverage: 135mm
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Finish: Planed Timber
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Type: Softwood
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Origin: Northern Europe
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Durability Class: Class 3
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Movement Class: Medium
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Knots: Variable
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Colour: Golden-brown, weathering to subtle silver-grey
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Modified Timber: No
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Fixings: Stainless Steel recommended
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Treatment: Untreated (OSMO stain recommended)
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Available Lengths: 0.9m, 1.2m, 1.8m, 2.4m, 3.0m, 3.6m, 3.9m and 4.2m
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Recommended Wastage: 5–10%
Board Run – Important Installation Detail
Please let us know whether your cladding will be fitted vertically or horizontally at the time of ordering.
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Vertical installation naturally channels water downwards and requires boards with a crisp shadow gap edge.
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Horizontal installation requires boards machined with a slight angle in the shadow gaps to allow water to run off and prevent moisture trapping.
Specifying the correct board run ensures better weather resistance and long-term performance.
Key Features & Benefits
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Modern shadow gap profile for a striking contemporary look
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Naturally durable and decay-resistant European Larch
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Strong, dense timber for excellent structural performance
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Stable material with medium movement class
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Unique natural grain and colour variation
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Suitable for horizontal and vertical cladding designs
Alternative Cladding Options
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British Larch Cladding – UK-sourced, environmentally friendly timber
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European Larch Shiplap – Profiled cladding alternative
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European Larch T&G – Tongue and groove profile
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European Larch 6” x 1” Boards – Square edge board option
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European Larch Loglap – Decorative profiled cladding
Frequently Asked Questions (FAQs)
1. What are shadow gap boards typically used for?
Shadow gap boards are ideal for external cladding on summerhouses, sheds, garden rooms, outbuildings and contemporary building façades.
2. Is European Larch suitable for outdoor use?
Yes, European Larch is naturally durable and highly resistant to decay, making it ideal for external environments.
3. Do I need to treat European Larch shadow gap cladding?
Treatment is not essential, but applying OSMO stain is strongly recommended to preserve colour and extend lifespan.
4. How long does European Larch cladding last?
With proper installation and maintenance, European Larch cladding can last 10–15+ years, and often much longer.
5. Do you offer bespoke lengths?
Yes, bespoke lengths are available. Please contact us.
6. What fixings should I use?
Always use stainless steel nails or screws to prevent corrosion and staining.
7. Can this cladding be used internally?
It can be used indoors, but it’s specifically designed and recommended for external applications.
8. Why do I need to specify horizontal or vertical installation?
Different machining is required to ensure proper water runoff and to prevent moisture trapping within the shadow gaps.
9. How much wastage should I allow?
We recommend allowing 5–10% extra material for cutting, trimming and natural defects.
10. How much does delivery cost?
Delivery costs are calculated at checkout and vary depending on your order size and delivery location.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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
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