Wooden Decking in Caernarfon

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Wooden Decking in Caernarfon

Wooden decking is an increasingly popular option for providing outdoor seating areas in gardens. Because of the natural beauty of wood, they can be very fashionable areas which you can use year round by adding external heating and light. Wooden decking is typically fitted in locations in front of patio or French doors where they can create a seamless transition between inside and outside spaces. Wooden decking can come in any size or shape to suit any area. Curved designs or large areas joined by pathways can create an attractive effect. Wooden decking is relatively easy to install and causes minimal disruption, particularly in comparison to other possibilities like patio or paving. It can even be installed over the top of a pre-existing patio. It is necessary however to be certain that your wooden decking is structurally sound and capable of taking the load of any furniture or plants that you would like to use on the decking. There is a choice of species of wood that can be used in wooden decking. Normally decking is constructed from hardwood, but there are softwoods available that fulfil the durability specifications. As hardwood decking will require maintenance, which commonly involves yearly cleaning and staining for weather proofing, composite woods are becoming more popular for use in wooden decking because they are more robust and require significantly less maintenance.

Average Wooden decking cost in Caernarfon

The typical cost of Wooden decking is £1500. Costs can change based upon the materials and the firm hired. The upper price range can be as high as £1725. The material costs are commonly approximately £375

Average price per Wooden decking job in 2026

Avg. price low

Avg. price low
£1,125

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£1,500

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£1,725

£1900

£1425

£950

£475

£0

Prices based on actual Wooden decking costs for Caernarfon, as reported by local LeadsDoWork members.

Wooden decking installation cost in Caernarfon 2026

Labour cost £1,050
Material cost £375
Waste removal £75
Time frame: 1-4 days
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Caernarfon

Caernarfon is a royal town, community, and port in Gwynedd, Wales, with a population of approximately 10,000. It is situated on the A487 road, on the eastern shore of the Menai Strait, opposite the Isle of Anglesey. Bangor is 8.6 miles (13.8 km) towards the north east, whilst Snowdonia borders Caernarfon towards the east and south-east. Carnarvon and Caernarvon are English spellings of the name that were superseded in 1926 and 1974, respectively. The villages of Bontnewydd and Caeathro are nearby. Abundant natural resources in and around the Menai Straits enabled human habitation in prehistoric Britain. The Ordovices, a Celtic tribe, settles in the location through the period referred to as Roman Britain. The Roman fort Segontium was established around AD 80 to control the Ordovices through the Roman conquest of Britain. The Romans controlled the region till the end of Roman rule in Britain in 382, after which Caernarfon became a part of the Kingdom of Gwynedd. In the late 11th century, William the Conqueror ordered the construction of a motte-and-bailey castle at Caernarfon as part of the Norman invasion of Wales. He was unsuccessful, and Wales remained independent till about 1283. During the 13th century, Llywelyn ap Gruffudd, ruler of Gwynedd, refused to pay homage to Edward I of England, which led to the English conquest of Gwynedd. This was followed by the construction of Caernarfon Castle, among the biggest and most imposing fortifications built by the English in Wales. The city has turned into a major tourist centre and seat of Gwynedd Council, with a busy harbour and marina. Caernarfon has expanded beyond its medieval walls and experienced heavy suburbanisation. Its population includes the biggest percentage of Welsh-speaking citizens anywhere in Wales. The castle and town walls are part of a World Heritage Site described as the Castles and Town Walls of King Edward in Gwynedd. For all of your property improvements, make sure that you use trustworthy pros in Caernarfon to ensure that you get a top quality service .

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FAQs

Will I need safety barriers or balustrades for my decking?

If your deck isn’t going to be flat to the ground, it’s a good idea to have some kind of balustrade to avoid any tripping. If the gap between the deck and the ground is less than 600mm, use a 900mm balustrade. If it’s higher than 600mm, the balustrade should be 1100mm tall.

How much maintenance will a wooden deck need?

Properly installed wooden decking will not need a lot of maintenance. Most manufacturers recommend regularly brushing leaves and dirt off the deck, and a yearly cleaning and staining procedure. This will keep the wood in the best condition. Fluids and treatments are readily available from all DIY shops and stores.

How much decking do I need?
How much decking you need will – of course – depend on how big you plan your deck to be. There is an equation to help you work out how many deck boards you need. It’s a little complicated until you’ve been shown how it works, but once you know how to do it it’s easy to work out how much decking you need for any project. The equation takes into account the recommended 10% wastage and includes the expansion gaps that are required, which is between 5-8mm along the length of the deck boards (EGL, or expansion gap length) and 3mm along the ends of the deck boards (EGW, or expansion gap width) for timber. It also assumes you’re laying your decking horizontally, as if you’re looking for a diagonal or chevron design you’ll need more deck boards. Let’s go through an example, assuming you have a 10m x 6m area that you want to cover with decking made from timber boards that are 2.4m long and 144mm wide. We’ll use the EGL of 5mm and EGW of 3mm.
  1. Calculate the surface area for your decking Multiply the length (L) of your decking area by the width (W): L x W = Decking Surface Area (DSA) in m2 10 x 6 = 60m2
  2. Work out the coverage of your deck boards Add your deck board width (DBW) to the expansion gap length (EGL), then add the deck board length (DBL) to the expansion gap width (EGW). Then multiply these numbers. (DBW + EGL) x (DBL + EGW) = Single Board Coverage (SBC) 0.144m + 0.005m = 0.149m 2.4m + 0.003m = 2.403m 0.149 x 2.403 = 0.358m2
  3. Calculate the number of deck boards you need Multiply the SBC by 1.1 to allow for 10% wastage. Then, divide the DSA by the SBC. DSA / SCB x 1.1 = Total number of boards required 60m2 / 0.358m2 x 1.1 = 184.36 boards – so round up to 185 so you’re not left short.
If that all seems a bit complicated for you, let a professional do the maths – they will be able to give you an idea of how much decking you’ll need in no time.
How much is decking?
How much decking costs depends on the type of material you go for, how big you want your decking to be and where you live in the country. But typically, the cost of decking is between £1,200 - £1,800. The most popular material for decking is pre-treated softwood, which will set you back around £1,000 for 15m2. Hardwood is more expensive but is more durable, and will cost approximately £2,000 for the same amount. Homeowners are also beginning to choose composite decking, which is made from recycled plastic and wood fibres, and is low-maintenance and eco-friendly. This will cost around £1,600 for 15m2, while uPVC which is also a low-maintenance option costs around £600. People tend to choose composite over uPVC because it looks more like natural timber. If you’re a competent DIYer, you might want to have a go at laying decking yourself which will set you back around £1,000 for a standard softwood timber deck. We think it’s worth paying the extra £600 for a professional to lay your decking, since they will be able to do it much more quickly. If you do want to try it yourself, we recommend leaving at least a whole weekend open to do it, but it’s likely to take you longer. Factor in the possibility of having to take time off work to complete it and it might be more cost-effective to leave it to the pros.
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