Delivered within 3-4 weeks.
Iroko is one of the most sought-after hardwoods for premium exterior cladding, prized for its rich colour, natural oils and impressive strength. Sourced from West and Central Africa, Iroko has been used for generations in shipbuilding, high-end joinery and architectural projects, thanks to its ability to perform in harsh outdoor conditions while maintaining its beauty.
Our 145mm x 19mm Iroko Planed Square Edge (PSE) boards offer a clean, modern option for timber cladding and exterior finishing. The square edge profile is perfect for contemporary designs, creating crisp horizontal or vertical lines with a minimalist, architectural feel.
Irokos natural density and built-in oils give it outstanding resistance to moisture, rot and insects without the need for pressure treatment. When freshly installed, the timber displays beautiful golden to medium brown tones, which slowly mellow into a soft silver-grey patina if left untreated. Many customers choose to apply a quality wood oil or OSMO stain to preserve the warm colour and enhance surface protection.
This profile is ideal for modern faades, garden rooms, outdoor buildings, feature walls and bespoke architectural projects where a refined, high-quality timber finish is required.
Product Specifications
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Material: Iroko
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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
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Width: 145mm
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Thickness: 19mm
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Face Coverage: 145mm
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Finish: Planed Timber (PSE)
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Type: Hardwood
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Origin: Africa
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Durability Class: Class 2
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Movement Class: Low
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Knots: Few
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Colour: Golden to medium brown, weathering to soft silver-grey
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Modified Timber: No
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Fixings: Stainless Steel recommended
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Treatment: Untreated (OSMO oil or 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: 510%
Key Features & Benefits
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Premium African hardwood
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Clean, modern square-edge (PSE) profile
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Naturally resistant to moisture, rot and insects
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Extremely stable with low timber movement
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Smooth planed finish for a high-end look
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Suitable for horizontal and vertical installation
Alternative Options
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British Larch Cladding UK-grown, cost-effective softwood
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Iroko Loglap Profiled version of this hardwood cladding
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Iroko Shadow Gap Contemporary profiled option
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Thermowood Cladding Heat-treated timber with enhanced stability
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European Larch T&G Softwood profiled alternative
Frequently Asked Questions (FAQs)
1. What are PSE boards typically used for?
PSE boards are commonly used for modern exterior cladding, garden rooms, sheds, outbuildings and architectural feature walls.
2. Is Iroko suitable for outdoor use?
Yes, Iroko is naturally resistant to rot, moisture and insects, making it ideal for external environments.
3. Do I need to treat Iroko cladding?
Treatment isnt required for performance, but applying a wood oil or OSMO stain helps preserve colour and enhance surface protection.
4. How long does Iroko cladding last?
With correct installation and care, Iroko cladding can last 5060+ years.
5. What fixings should I use?
Use stainless steel nails or screws to prevent corrosion and timber staining.
6. Can this timber be used indoors?
It can be used internally, but its primarily designed and recommended for external applications.
7. Do you offer bespoke lengths?
Yes. Please contact usfor bespoke orders.
8. Does Iroko warp or move much over time?
Iroko has low movement, making it far more stable than most softwoods.
9. How much wastage should I allow?
We recommend allowing 510% extra material for cutting and trimming.
10. How do I install Iroko PSE cladding?
We provide full Cladding Install Guides with step-by-step instructions to help you achieve a professional finish.
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