Top 5 Hardwood Decking Choices for UK Gardens in 2025

by

Southgate Timber

July 16, 2025

Choosing the right hardwood decking can transform your outdoor space. Whether you’re upgrading your garden, installing a new terrace, or replacing old boards, selecting the right timber is essential for long-term durability, aesthetics, and performance in the UK climate. To make the decision slightly easier for you, we’ve narrowed down the top 5 hardwood decking options for 2025, all in stock and trusted by landscapers, architects, and homeowners across the UK.

 

1. Yellow Balau – A Best-Seller  

Yellow Balau hardwood decking smooth both sides 21 x 145mm. Top 5 decking choices in UK 2025. Finished garden decking project garden goals of decking kitchen terrace

Yellow Balau is a dense, tropical hardwood known for its strength, golden-brown colour, and excellent weather resistance. It’s one of the most popular decking choices for UK gardens, often seen as a budget-friendly alternative to the famous Ipe, and due to such high demand, we’ve just replenished our stock.

  • Affordable, durable, and smooth
  • Naturally resistant to decay and insect damage
  • Ages beautifully to a silver tone if left untreated

2. Ipe – Premium Choice for Luxury Decking

Ipe hardwood decking 21 x 145mm hidden fixings, durable and hardwearing decking. Poolside decking design in garden, garden decking goals and inspiration. Premium decking choice one of the top 5 decking choices in UK 2025

Ipe remains one of the toughest hardwoods available. With a deep brown tone and an incredibly long lifespan, it’s ideal for high-end outdoor spaces where performance and appearance matter.

  • Lasts 30–40+ years
  • Dense, weather-resistant, and scratch-resistant
  • Compatible with hidden fixing systems for a clean finish

3. Thermo-Ash – Sustainable & Stylish

Thermo-Ash decking 20 x 132mm from Thermory, thermally-modified ash decking, very stable and durable with deep brown tone, end matched for easy install and hidden fixi system. Outdoor decking project, restaurant exterior design

Thermo-Ash is a thermally modified hardwood made from sustainably sourced Ash. The heat-treatment process enhances durability, making it ideal for UK weather while offering a rich, modern colour.

  • Eco-friendly, thermally modified hardwood
  • Lightweight and easy to install, even with the hidden fix system
  • Excellent stability with minimal movement

4. Jatoba – Strong, Striking, and Long-Lasting

Sustainable, FSC certified Jatoba decking 21 x 145mm decking with hidden fixings. Durable and deep, rich colour decking. Striking decking, seaside decking, garden project

Jatoba is a bold, reddish-brown hardwood with incredible hardness and a high-end look. It’s ideal for anyone looking to make a visual statement with their decking without compromising on performance.

  • Extremely hard and durable
  • Unique colouring that deepens with age
  • Works well with hidden fixings for a flawless look

5. Iroko – Natural Warmth with Tropical Toughness

Tropical hardwood, Iroko decking smooth 20 x 140mm. Exotic gardens design with exterior decking outside kitchen

Iroko is a golden-brown tropical hardwood, recognised for its unique multi-directional grain. It’s naturally oily, making it resistant to rot and perfect for outdoor use.

  • Great durability and weather resistance
  • Rich colour and smooth grain
  • Excellent value for long-term performance

Still need help deciding?

Each timber on this list offers unique strengths, whether you’re after long-term value, bold aesthetics, or sustainability. Still unsure? Our expert team is here to help you choose the right decking for your space. Call us on 01277 890783 or email us for more advise on your project. Made your choice already? All that’s left to do now is shop on our website and get ordering!


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