Description
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. It’s 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 façades, 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 -
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: 5–10%
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?
They’re most commonly used for high-end exterior cladding on garden rooms, garden offices, sheds, façades 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 50–60+ 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 it’s 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 5–10% 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.
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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