This is a step-by-step calculator that gives you all the options, though you don't need to feel overwhelmed as you can skip any step along the way. Those steps are simply there so you don't forget about fascia boards, edging, clips, and your subframe. You simply start by selecting your design, length, and colour, key in your length and width in metres, and go through each step based on everything we've learned you will need—skipping what you don't and adding what you do—while it works everything out for you.
Ash Grey Composite Decking Board
- Type: Reversible Wood Grain
- Material: Wood Fibre & HDPE Plastic
How Many Ash Grey Boards Do You Need? Calculate Your Area
Quick Board Calculator
Just need to know how many boards your project takes? Enter your length and width to get an instant board count and cost estimate for your area.
Calculate Boards Only ↓Full Project Calculator
It's easy to overlook hidden clips, starter clips, edging trims or joists. Build your kit step-by-step and skip anything you don't need.
Build Full Project ↓Total
Select options
Quantity
Inspired by weathered timber and designed with modern flair, our Ash Grey Decking Board combines rustic charm with next-gen durability. A favourite from our premium decking collection, it features mixed ash tones and a woodgrain texture that creates a natural, varied look—no two boards are the same.
Ideal for patios, terraces, and garden hideaways, it’s built using HDPE plastic and Grade A wood fibres for extra strength, scratch resistance, and colour stability. The reversible profile lets you switch between a realistic grain and narrow grooves, while the slip-resistant, splinter-free surface makes it as practical as it is beautiful.
Please Note: Order Your Free Samples
We highly recommend ordering our free samples to confirm the colours before placing an order, as digital photos can vary significantly between screens.
Truly Unique Finish
Superior Durability
15 Year Warranty
Expert Advice for Ash Grey Decking
Want to know more? Our in-house expert, Allan, gives his take on our Ash Grey Composite Decking, and we’ve selected some of our best guides to help you decide if this is the right choice for you.
A Word from Our Expert, Allan:
“Our original composite decking lines were all about perfecting the blend of quality and affordability. But we didn’t stop there. We listened to our customers as they asked the next logical question: ‘How can we get even closer to the authentic look of real, weathered timber?’
Our answer was to stop thinking in single colours. For our Mixed Grey, we developed a process to blend lighter and darker shades of grey throughout a single board. This, combined with our unique wood grain texture, creates a level of depth and natural inconsistency that you just can’t get with a standard board. It’s the perfect choice for a truly authentic, high-end look without any of the maintenance.”
-
Authentic Mixed Colour
No two boards are the same. The natural wood-effect look captures the unique wood grain pattern and colour of exotic wood, truly one of a kind!
-
Highly Durable
Engineered with the latest manufacturing techniques for strength and longevity.
-
Enhanced UV & Weather Resistance
Designed to withstand Britain’s rain, sun, and frost without warping or rotting. Slip- and scratch-resistant, ideal for barefoot walks and busy family life.
-
Modern Design
Enhanced luxury and appearance compared to the classic woodgrain seen on the market for almost a decade.
Specifications
-
Length
3600mm
-
Width
148mm
-
Finish
Reversible Wood Grain
-
Thickness
25mm
-
Colour
Mixed | Anthracite Grey | Grey
-
Installation
Grooved (requires decking clips)
-
Weight (per board)
Approx. 9kg
-
Material
High-Density Polyethylene & Wood Fibre Composite
-
Warranty
15 Years Residential
Calculate Your Composite Decking Boards & Project Kit
You may already know what you need or have your build planned out. In this case, our quick calculator lets you work out just the boards you need for your project—with recommended accessories populated below so you can easily add them if needed.
Area
0 m²
Required Boards:
0
Composite Joists – Size: 3m x 100mm x 50mm
C24 Timber Floor Joist 47mm x 100mm x 3.6m
Composite Posts
Timber Posts Treated 100mm x 100mm
Slim Hidden Fasteners – Decking Clips
Plastic Decking Fasteners
Ultra Composite Decking Clip
Calculate Your Decking
Calculate
Delivery Information
| Delivery Type | How Long? | Delivery Cost |
|---|---|---|
| Urgent | Estimated 1-4 Working Days | £79.99 |
| Normal* | Estimated 5 to 7 Working Days* | FREE |
| Royal Mail Standard (Small Parcels) | 3–5 Working Days | £8.00 |
| Royal Mail Standard (Large Parcels) | 3–5 Working Days | £29.95 |
| Collection | Collection from our warehouse | FREE |
| Sample Packs | 3–5 Working Days | FREE |
| *Normal | Distance Deliveries Can Exceed Estimate | FREE |
Want Know More About Our Ash Grey Boards
1 Will the Ash Grey boards fade over time?
Yes, like all composite decking, the colour will naturally soften by up to 20% due to UV exposure. This is an expected, factored-in characteristic that enhances the organic timber look.
2 Can I install these wood grain boards myself?
Absolutely. The grooved edges are designed for hidden fastener systems, allowing easy installation with a clean finish. Whether you’re an experienced DIYer or a first-timer, our installation guide will walk you through the process.
3 Is this ash grey decking safe for children and pets?
Yes. The boards are splinter-free and slip-resistant, ideal for little feet, muddy paws, and all the mischief in between.
4 How do I choose between the woodgrain and grooved finish?
Both surfaces come with every board! Use the woodgrain side for a natural, rustic feel, or flip to the grooved side for a modern, structured appearance. You can also mix both for a truly custom look.
5 How can I be sure the ash grey colour suits my outdoor space?
We highly recommend ordering a free sample. Screens can display colours differently, so it’s always best to see the shade in your own environment.
As Seen In
