Description
Crafted from home-grown British Western Red Cedar, these Shadow Gap cladding boards bring a sleek, architectural finish to any exterior or interior project. Each board is smooth-planed for a clean, contemporary appearance, and features a 10 mm recessed gap that creates striking shadow lines — perfect for modern façades, garden buildings, and feature walls.
British Cedar is naturally durable, lightweight, and resistant to decay and insects, requiring no chemical treatment. Its light reddish-brown hues mature beautifully into a soft silver-grey patina, delivering a timeless look that complements both contemporary and traditional designs.
Machined in-house with precision, each board offers excellent consistency, easy installation, and design versatility. The 145 mm × 19 mm profile provides a refined shadow detail and effective rainwater drainage, making it both functional and visually distinctive.
Ideal for architectural cladding, fencing, soffits, or decorative wall features, this profile showcases the natural beauty of British timber while maintaining a refined, professional finish.
Specification
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Sample: Free sample available
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Width: 145 mm (face coverage 128 mm)
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Thickness: 19 mm
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Lengths: 15 cm sample, 1.8 m, 2.4 m, 3.0 m, 3.6 m, 4.8 m
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Overlap: 10 mm
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Timber Type: Home-Grown Western Red Cedar (Softwood)
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Finish: Smooth Planed
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Treatment: Untreated – naturally durable timber
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Durability: Class 3 (moderate)
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Movement Class: Medium
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Colour: Light reddish-brown, weathering to silver-grey
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Fixings: Stainless steel recommended
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Recommended Wastage: 5–10 %
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Weight: Approx. 3 kg per board
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Origin: UK
Key Features
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Made from sustainably sourced home-grown British Cedar
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Ruby in-house machining for precision and consistency
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Smooth planed finish for modern, architectural appeal
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Distinct 10 mm shadow gap for depth and definition
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Naturally rot-resistant – ideal for external applications
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Lightweight and easy to install
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Excellent thermal insulation and workability
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Free samples available to preview tone and texture
FAQs – Shadow Gap British Cedar Cladding (145 mm × 19 mm)
1. What is shadow gap cladding?
Shadow gap cladding features boards installed with a small recessed gap (around 10 mm) between each profile, creating bold horizontal lines and dramatic shadow effects for a clean, contemporary finish.
2. What is the face coverage of the 145 mm × 19 mm shadow gap board?
The face coverage is 128 mm, allowing for a precise fit and consistent shadow line once installed.
3. How does shadow gap cladding differ from shiplap or tongue & groove?
Unlike overlapping shiplap or interlocking T&G profiles, shadow gap boards have a visible recessed joint. This gives a modern linear look and strong light-and-shadow definition.
4. Is British cedar suitable for outdoor use?
Yes. British cedar is naturally resistant to decay, insects, and moisture, making it perfect for external cladding, fencing, and architectural detailing.
5. Does the cedar need treatment?
Treatment isn’t required, but applying a UV-protective oil (such as Osmo) helps retain the natural colour and reduce weathering.
6. Can shadow gap cladding be used indoors?
Yes — it’s often used for feature walls or interior panelling where a sleek, modern aesthetic is desired.
7. How should shadow gap boards be fixed?
Use stainless steel screws or nails, fixing through the face or with hidden clips depending on the design. Always allow for ventilation behind the cladding.
8. What lengths are available?
Standard lengths include 1.8 m, 2.4 m, 3.0 m, 3.6 m, and 4.8 m, with samples available for inspection.
9. Do you offer custom or cut-to-length options?
Yes — boards can be cut to bespoke lengths on request, subject to an additional machining charge.
10. How long will cedar shadow gap cladding last?
When correctly installed and maintained, cedar cladding can last 20–30 years or more, thanks to its inherent durability and resistance to weathering.
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