Whether you’re an al fresco breakfast-eater, the family’s go-to BBQ host, or you simply enjoy stretching out on a sun lounger, decking offers you outdoor space to relax or entertain.
Composite decking is low maintenance and stylish, which makes it an ideal option to extend your living space and wow guests.
If you’re thinking of installing decking but aren’t sure where to start, this step-by-step guide can help you get it right the first time.
Key takeaways
- Plan with purpose: Decide how you’ll use your decking, whether it’s for dining, relaxing, playing, or as a design feature.
- Design smart: Think about size, shape, sun, and placement to suit your space and needs.
- Choose composite: A durable, low-maintenance, and eco-friendly alternative to timber.
- Prep and check: Use a calculator to estimate materials, and confirm if planning permission is required.
What do you want to use your decking for?
Modern decking is versatile – not only can it provide a distinct seating area, it can be used to create:
- Outdoor dining area
- Play area
- Raised platform or steps
- Path to an outbuilding or garden room
- Anti-slip surface around pools/hot tub
- Planting boxes
Choosing the right material
Decking has come on since the days of traditional timber. There are innovative alternatives like composite (manufactured from recycled wood and polymer), which is resistant to a lot of the issues facing wooden decking like rotting, warping, insect damage, cracks and more.
So, how do the two stack up against each other?
Maintenance: Composite decking doesn’t need any chemical treatments for upkeep and it’s easy to clean. Simply wash it down with soap and water once or twice a year to keep it looking its best.
Durability: Standard timber decking needs to be replaced every 10-15 years, whereas composite decking boards, when looked after, can last well over 20 years.
Cost-effective: Composite decking costs vary depending on the project but Eurocell’s decking boards start from £23.71*, while untreated timber decking can cost around £10 in 2025. Composite decking may have a higher upfront cost but it requires less maintenance and has a longer lifespan, making it more cost effective in the long run.
Environmental impact: Composite decking is usually made from recycled materials, and doesn’t require treatment with harsh chemicals, making it a more eco-conscious choice.
Versatile and stylish: Composite decking comes in a range of colours and finishes, so you can create your dream decking project, without compromise.
“Installing decking means you get to increase your living space and get the most out of your garden, especially in the warmer weather. It makes a great base for any outdoor furniture like sun loungers, tables or sofas, and can be used to separate your garden into different sections.”
Shape and size of your decking area
The good thing about decking is that it can be cut and shaped to fit your design, whether you prefer a simple deck, or a more extravagant design like the picture below.
There are three main decking styles:
- Ground level
- Ground level with a balustrade (a stylish railing)
- Raised with a balustrade and steps
Depending on the size of your garden, and your design, composite decking can be laid to wrap around your house or fit nicely in a corner. It can also be raised, which is ideal if your garden is sloped or you want to create a more separated space. It can be finished with steps for accessibility or a matching balustrade to make it look more grand.
When planning the size of your decking, consider your budget and whether your garden furniture will fit.
Measuring your decking:
- Measure the width and length of the area
- Decide on the direction of the boards
- If laying the boards lengthways, divide the deck width by the board width (plus 5mm spacing for T-Clips)
Where will you lay your decking?
It’s not just the decking layout you need to consider but the positioning in your garden. Ask yourself the following:
What will the view be like? A view of trees and greenery can uplift your mood, so pick a scenic spot to lay your decking. Also consider the privacy of the area you choose.
Sunny or shaded? Decked seating areas are the perfect place to soak up the sun’s rays, so position your decking in a spot that will get a good amount of sun.
Existing landscaping in the way? If you’ve got plants or shrubs in your garden, don’t dig them up, unless you want to! You can lay your decking in a spot that doesn’t interfere with existing greenery.
Is the ground level? Level ground makes laying decking easier but don’t despair if your garden is on a steep slope. It can be raised slightly, which can also offer a better view, or laid on steep ground with some extra planning.
Is it easy to access? Positioning the decking close to your property for easy access.
How many decking boards will you need?
The amount of decking boards that you need depends on your project size and design – generally, the larger your decking area, the more boards you will need. Keep in mind that your decking can’t cover more than 50% of your garden without planning permission (more on this below).
Once you’ve settled on the shape, size and design, use Eurocell’s decking calculator to figure out how many boards you may need.
Will you need planning permission?
You don’t typically need planning permission to lay an area of decking in your garden, but there are some exceptions where you will have to:
- If your decking is more than 30cm off the ground
- If you live in a conservation or listed area
- If your decking covers more than 50% of your garden
If you’re unsure, get some advice from your local planning authority, so you can plan your project with confidence.
What else do you need to buy?
To fit your decking, you’ll need joists and fixings like edging and angle trim, and you may also want a balustrade for raised decking areas or a matching composite gate.
You may also want to buy garden furniture like a couch, chairs, dining table, plants, rugs and other accessories. Plan the aesthetics in advance, so you know exactly what you will need – it helps to make a list with prices, so you stay within budget.
Installing your decking
Eurocell’s composite decking is lightweight and easy to handle. It’s also been designed for straightforward installation but if you’re unsure, it’s always best to get help from a professional tradesperson, especially if your design is more grand.
Ready to get started? Check out Eurocell’s composite decking to give your outdoor space a lift.
*All prices for Eurocell products are correct on the date of publishing. Please check the individual product pages for exact prices at the time of reading as these might be subject to change.
