Delivered within 3-4 weeks.
Iroko cladding is considered one of the premium hardwood choices in exterior timber, and for good reason. Sourced from the tropical hardwood forests of West and Central Africa, Iroko has been used for centuries in boat building, high-end joinery and exterior architecture thanks to its extreme strength, natural oils and stunning visual character. Its often referred to as the African Teak because of its similar performance, rich colour and long lifespan.
These 2.4m 144mm x 19mm Iroko Tongue and Groove cladding boards bring that same high-end quality to modern building projects. This is a timber chosen when you want something that feels solid, luxurious and built to last. The tight grain, natural oils and dense structure give Iroko its outstanding resistance to moisture, rot and insects without the need for pressure treatment.
The tongue and groove profile creates a clean, tight fit, producing smooth, seamless walls with excellent weather protection. These boards are ideal for luxury faades, garden rooms, modern extensions, high-end sheds and architectural feature walls.
Fresh Iroko has beautiful golden to medium brown tones, which slowly weather to a refined silver-grey if left untreated. Many customers choose to apply a quality wood oil or OSMO stain to lock in the colour and keep that rich, warm finish for longer, while adding extra protection against UV, cracking and surface movement.
With its combination of African heritage, premium appearance and long-term performance, Iroko stands firmly at the high end of hardwood cladding options.
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: 144mm
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Thickness: 19mm
- Board Length: 2.4m
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Face Coverage: 137mm
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Finish: Planed Timber
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Type: Hardwood
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Origin: Africa
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Durability Class: Class 2 (very high natural resistance)
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Movement Class: Low
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Knots: Few
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Colour: Golden to medium brown, weathering to 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 with natural oils
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High-end architectural appearance
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Excellent resistance to moisture, insects and decay
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Low movement for stable, consistent installation
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Smooth planed finish for a luxury look
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Long service life with minimal maintenance
Alternative Cladding Options
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British Larch Cladding UK-grown, cost-effective softwood option
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Iroko Loglap Profiled version of this hardwood cladding
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Iroko Shadow Gap Contemporary profiled hardwood option
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Iroko 6 x 1 Boards Square edge hardwood boards
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European Larch T&G Softwood alternative
Frequently Asked Questions (FAQs)
1. What are Iroko tongue and groove boards typically used for?
Theyre most commonly used for high-end exterior cladding on garden rooms, garden offices, sheds, faades and feature walls.
2. Why is Iroko considered a premium timber?
Iroko is extremely dense, naturally oily and very stable, giving it outstanding resistance to rot, insects and weather without chemical treatment.
3. Do I need to treat Iroko cladding?
No treatment is required for performance, but applying an oil or OSMO stain helps maintain the rich brown colour and extends surface life.
4. How long does Iroko cladding last?
With proper installation and care, Iroko cladding can last 5060+ years.
5. What fixings should I use?
Always use stainless steel nails or screws to avoid corrosion and staining.
6. Can this cladding be used indoors?
It can be used internally, but its designed and recommended primarily for external use.
7. Do you offer bespoke lengths?
Yes, bespoke lengths are available. Contact us for more info.
8. Does Iroko move or warp over time?
Iroko has low movement, making it far more stable than many softwoods.
9. What wastage should I allow for?
We recommend allowing 510% extra material for cuts and natural timber variation.
10. How do I install Iroko T&G cladding?
We provide detailed Cladding Install Guides with step-by-step instructions to help you achieve a professional finish.
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