If you’ve got an uneven garden and you want a cost-effective way to build a seating area, decking is a great option. With lots of different styles, finishes and extra features available, you can create a decked area that complements your garden.

But how much does it cost? We’ll go through all the costs involved in decking and what you can do to get the best quote for the work.

How much does decking cost?

The cost of installing decking varies depending on the materials, size and complexity of the design. On average, decking costs range from £50 to £200 per square metre for materials and installation combined.

A small decked area of 10 square metres might cost between £500 to £1,425, while a larger 30-square-metre area could range from £1,800 to £3,660. The more decking you need, the lower the cost per square metre tends to be.

As well as the wood or composite material for the decking, you’ll need to factor in the cost of other materials, finishes and extras you might need:

Factors that affect the cost of decking

Several factors can influence the overall cost of a decking project:

• Size of the decking: Larger decked areas require more materials and labour, increasing the total cost. However, fencers can often get a cheaper rate on materials, so the cost per m² can be lower.
• Your choice of material: Softwood is the cheapest option, while hardwood and composite decking are more expensive. In the long run, choosing hardwood or composite decking may cost you less as it will last longer and require less maintenance.
• Complexity of the design: Intricate patterns, multiple levels or built-in features like seating will increase the cost.
• Site preparation: If the area you want to deck is very uneven or sloped, you may need to have your garden levelled before work begins.
• Additional features: Extras such as railings, steps or lighting will increase the overall cost, but make your decking more pleasant to use.
• Your location: Labour costs vary depending on where you live. Prices are generally higher in urban areas, although if you live in a very rural area costs tend to be higher here too.

Our costs in this guide are averages based on our database of hourly and daily rates for fencers from across the UK. The actual price you pay will depend on the work completed and where you live. Take a look at our decking cost table and find your nearest town or city to get a more accurate idea of how much your project will cost.

Pros and cons of decking

If you’re not sure whether decking is right for you, it’s a good idea to weigh up the pros and cons to see how they fit within your budget, lifestyle and your property’s looks:

Types of decking board

Now you know the pros and cons of decking, you need to consider the pros and cons of the different decking board materials available. The most common options are softwood, hardwood and composite boards:

Softwood

Softwood decking is the most affordable type of decking board. These boards are usually made from pine or spruce and are treated to resist rot and decay. However, they still require regular maintenance to keep them in good condition, and won’t last as long as other types of decking.

Pros

• Affordable
• Widely available
• Easy to lay

Cons

• Requires regular maintenance
• Shorter lifespan than hardwood or composite

Hardwood

Hardwood decking, such as ash or oak, offers a premium and durable option. Costs vary depending on the type of wood you choose, but the average cost per m² is £101. Hardwood decking boards are usually more difficult to install so take longer, which is partly why the cost per square metre is higher. They are also usually imported from other countries and are complicated to manufacture, which also increases the cost.

Pros

• More durable than softwood
• Customisable due to the range of hardwoods available
• More weather resistant than softwood
• Much more aesthetically pleasing

Cons

• Higher initial cost
• Harder to install

Composite

Composite decking is becoming more and more popular as an alternative to wooden decking boards. Made from recycled wood and plastic fibres, it’s easier to maintain and typically lasts longer than natural wood decking. So while the upfront cost is often higher, choosing composite decking may save you money in the long run.

Pros

• Low maintenance - simply hose down twice a year
• Warp-, splinter- and weather-resistant
• Slip-resistant
• Highly customisable

Cons

• Higher initial cost
• Not a natural product
• Permanently coloured, so you can’t change your mind once installed

The decking installation process

A fencer or landscaper will follow these general steps as they install your decking:

1. Planning and preparation: Measure the area and lay down the boards in your chosen pattern to check the look and whether there are enough boards.
2. Groundwork: Clear the space, ensure it’s level, and install weed-resistant fabric.
3. Frame construction: Build a sturdy timber or metal framework to support the decking.
4. Laying boards: Secure the decking boards onto the frame using screws or hidden fixings.
5. Finishing touches: Add edging, railings or steps as desired.

Professional installation ensures the decking is stable, safe and long-lasting. Any good fencer will be happy to answer any questions you have about the installation process before they start work.

Is it cheaper to do a deck or a patio? Which is easier?

Decking is generally cheaper than a patio, especially when using softwood. However, the gap narrows with premium decking materials like hardwood or composite.

Decking is easier to install, particularly on uneven ground, while patios are more durable and low maintenance in the long term.

Can you put decking over block paving?

Yes, decking can be installed over block paving if the surface is stable and even. A timber frame or adjustable decking pedestals can be laid on top, ensuring proper drainage and airflow to prevent moisture build-up. 

A fencer or landscaper may also recommend adding a damp proof course to further prevent moisture build-up and keep your decking in good condition for longer. 

Does decking add value to your home?

Decking can enhance your garden's appeal and potentially increase your property’s value. It creates a desirable outdoor entertaining space that’s particularly attractive to families or homeowners who enjoy hosting. A well-designed deck could add 5-10% to your home’s value, depending on its quality and size.

If you live in your property and are not making improvements in order to sell it quickly, it’s always worth considering the value decking adds to your quality of life in front of the value it may add to your home. Whether you will see an increase in your property’s value due to the decking all depends on the market at the time, how long the decking has been installed and how well you have maintained it. 

How long does decking last?

The lifespan of decking depends on the material:

• Softwood: 10-15 years with proper maintenance
• Hardwood: 15-25 years, depending on the wood species and how often it’s oiled and cleaned
• Composite: 25–50 years, with minimal maintenance required

Regular cleaning, sealing, and treating can extend the life of your decking. Ask your fencer for advice on how to maintain your decking before you use any harsh chemicals or other products, as the wrong products can reduce the lifespan of your decking.

Can I build my own deck?

Yes, building your own deck is possible if you have basic DIY skills. A simple rectangular deck is the easiest to construct, as you’ll just need to create a subframe and secure the boards with counter-sunk screws. 

However, it’s best to consult a professional if you want a complex design, want an elevated deck that will need safety features, or you’re not sure about how to achieve structural stability. 

By building it yourself, you could save on labour costs, but be prepared to invest time and effort in the project. If you have to take time off work to complete the decking, remember to compare your hourly rate against a fencer’s rate.

 Don’t forget that it will take longer for you to fit the decking - you may find that it’s actually cheaper to ask a fencer to complete the work.

Ready to get quotes for a fabulous new deck? Post your job on HaMuch now to get in touch with trusted professionals in your area.

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