Timber Decking Cost

Written by Derry Boorman
Derry Boorman
Writer
I have a BA (Hons) in Media, which includes Marketing and PR, Media Theory, Photography and Film Production. I’m also a photographer specialising in Weddings, and I have five years experience in writing and social media management.
1st December, 2025
How we get our data
We gather our data from real quotes given by UK tradespeople to UK homeowners on the MyJobQuote platform.
At a Glance
  • The average timber decking install costs around £2,600 (30m²).
  • Most jobs typically take between 1 to 2 days to complete.
In this guide, you'll find:
  • Timber decking costs in 2025 by size and type.
  • How long the job takes and what's typically involved.
  • How to find a local timber decking installer using MyJobQuote.
timber decking in a UK garden

Timber Decking Installation Cost (30m²):

Depending on the complexity of the job, it usually takes: 1 – 2 days

£2,600

How Much Does Timber Decking Cost?

Timber's still popular in UK gardens for its warm look and flexibility. But before you decide, check typical garden decking costs so you can weigh it up against other options.

For a typical 30m² area in 2025, expect an average install of around £2,600. That’s roughly £85 per m² using mid-range boards and standard fitter rates.

  • Size: More area means more boards, fixings, and time.
  • Materials: Board type, subframe, rails, and finishes.
  • Labour: Day rates vary by region and access.

Consider that the size of your space will significantly impact the overall expense of the installation, as your contractors will likely be working for a more extended period of time.

When getting a quote for new timber decking, the price commonly will include both the supply and installation of your deck. However, it's always worth checking with your tradesman that their quote includes the complete cost of the timber.

I have a garden in which I would like to put around 18m² of wooden decking. Any idea of cost roughly please (with labour and materials)?

"Without seeing it, I would say it would cost between £1,200 and £1,600. That’s includes labour and materials for a treated wooden decking at 36mm thickness."

Timber Decking Installation Prices

Timber decking costs range from budget-friendly to more premium, extensive projects. You have the freedom to alter the cost of your project, depending on the materials and contractors used.

Below is a table for you to get an estimated guide of how much new timber decking would likely cost.

Timber Decking Costs for 10m² Area

Timber Used Decking Quality Area Covered Average Cost
Pressure Treated Softwood Budget 10m² £600 – £800
Pressure Treated Pine Budget 10m² £600 – £800
Redwood Decking Standard 10m² £700 – £1,000
Cedar Decking Standard 10m² £800 – £1,100
American Hardwoods Premium 10m² £900 – £1,200
Teak Solid Wood Premium 10m² £1,100 – £1,400
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Timber Decking Costs for 30m² Area

Timber Used Decking Quality Area Covered Average Cost
Pressure Treated Pine Budget 30m² £1,200 – £1,700
Redwood Decking Standard 30m² £2,000 – £2,500
Cedar Decking Standard 30m² £2,100 – £2,600
American Hardwoods Premium 30m² £2,600 – £3,100
Teak Solid Wood Premium 30m² £3,800 – £4,300
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Timber Decking Costs for 60m² Area

Timber Used Decking Quality Area Covered Average Cost
Pressure Treated Pine Budget 60m² £2,000 – £2,300
Redwood Decking Standard 60m² £2,800 – £3,100
Cedar Decking Standard 60m² £2,900 – £3,200
American Hardwoods Premium 60m² £3,400 – £3,700
Teak Solid Wood Premium 60m² £4,800 – £5,100
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Cost of Timber Decking Materials

If you’re contemplating laying timber decking DIY, then you may need to know the cost of timber decking only, without any labour fees or installation charges.

Type of timber Supply cost
Pressure Treated Softwood £10 – £20 per m²
Pressure Treated Pine £10 – £20 per m²
Redwood Decking £20 – £30 per m²
Cedar Decking £30 – £40 per m²
American Hardwoods £40 – £55 per m²
Teak Solid Wood £50 – £70 per m²
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If you're looking for cheap timber decking, pressure treated softwood is the cheapest option available. It is also likely that the price per metre will drop if you are buying in bulk.

Composite WPC decking is also a great alternative to timber as it's long-lasting but arguably not as attractive.

I would like to have some decking fitted in my garden and looking at a ball park figure cost. The job would also involve moving a small shed and relocating. The decking would be around 9foot by 12foot curved. Looking at small steps either side and a few lights added. Does anyone know roughly how much this would cost?

"Depending on the electrician, type of lights, where the live feed would be, and the type of decking, you could be anywhere between £1,200 and £1,800 for top quality tradespeople.

My best advice would be to get a few quotes — but never go for the lowest quote. Explain you are looking for a fixed price quote, too."
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Labour Cost to Lay Timber Decking

The labour price of timber decking is around £150 – £200 per day, depending on where you are within the country.

On average, it'll take between 1 and 2 days to complete, this heavily depends on how big you want your decking area. You may need to add an extra day if your current decking needs removing and disposing of.

Area Covered Install Time
10m² 1 Day
30m² 1 – 2 Days
60m² 1 – 2 Days
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Planning Permission and Building Rules for Timber Decking Installations

If you're completely replacing your timber decking, there are some key building regulations and planning permission rules to be aware of.

  • Height and area limits — Keep the surface under 30cm and, together with other outbuildings, cover no more than 50% of the garden. Anything forward of the home’s principal elevation isn’t permitted development.
  • Damp-proof course (DPC) — Don’t bridge the DPC. Leave a clear gap at the wall for air and water to pass. Decks can sit below the DPC, or level with thresholds if detailed to avoid bridging.
  • Services and access — Keep manholes or inspection chambers accessible (Building Regs Part H). Use recessed lift-out covers if the deck runs over them.

Always check local rules if you’re near a boundary, a highway, in a conservation area, or at a listed property.

What Does Timber Decking Installation Involve?

tradesperson cutting timber decking planks during an installation project

Timber decks look great, but the build needs a considerable amount of care. Think about hiring a local timber installer so the frame, drainage, and finish last as long as possible. Getting two or three quotes is sensible.

Submit a few details about what you're after and we'll connect you with decking installers near you for free, no-obligation quotes.

Before the Job Starts

  • Site survey and measure — Your installer checks access, drainage, manholes, and levels. They measure up to plan the subframe and work out materials.
  • Spec and quote — You agree on the board type, joist centres, fixings, rails, and waste removal. Dates, payment stages, and warranties get written down.

During the Job

  • Ground prep and subframe — Turf or slabs are lifted. Weed membrane goes down for low decks. Pads, posts, or ground screws are set, then the frame is built level.
  • Boards, edges, and safety — Boards go down with consistent gaps (usually 5–8 mm). Any cut ends on treated softwood get an end-grain preservative. Fascia, picture framing, steps, and balustrades are fitted where needed. Check handrail heights against Building Regs if you’re adding guarding.

After the Job

  • Finish and clean down — Timber is oiled or stained once dry. The team removes offcuts and waste. You get care notes for seasonal upkeep.
  • Problem check and handover — Fixings are inspected, rails feel solid, and water runs away from the house. Any issues are listed and resolved.

Can you cut millboard decking just as you would cut timber decking?

"Have not tried it but believe you can. Seek more advice, maybe Google and YouTube."
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What Different Types of Timber Decking Are There?

Before hiring a professional to install your new timber decking, you will need to think about the quality and style of decking you would like. There are many different types of timber decking available on the market today to suit almost every budget. You can select whether you would prefer soft or hardwoods, untreated or treated woods, as well as average or premium quality boards.

Remember, each of these variations will likely affect the cost of your project. A professional decking fitter will be able to advise you on which products would be better suited for your area and requirements.

Although timber is a great option for your garden decking, bear in mind that other garden decking options are available, like Composite, IPE, Trex and PVC which all offer benefits that timber decking may not.

Softwood Boards

The most popular choice for decking boards amongst homeowners tends to be pressure-treated, softwood boards. Timbers like pine are usually treated to withstand weathering, wood rot and decay.

Treated pine decks are generally much easier to cut and install, compared to hardwood boards. Softwood decking boards are readily available and easy to source, making them cheaper than other timber decking options. On average, the cost for pressure treated softwood decking is around £16 per m².

While softwood decking is much cheaper than hardwoods, it is important to remember that they will require more maintenance, regular cleaning and periodic re-treatment (often annually). Correctly specified and maintained softwood can achieve a 10–15+ year service life. Longer is possible with higher-spec treatment classes.

aged timber decking that has been removed

Hardwood Boards

Hardwood boards have a longer lifespan, thanks to their incredible durability. They’re lower-maintenance than softwood, but you’ll still want seasonal cleaning — and oil/seal if you want to keep the original colour (otherwise they weather to silver). Tropical hardwoods like ipe (often called Brazilian walnut) come from Central/South America, teak (Tectona grandis) is native to South and Southeast Asia or grown on plantations. Both are dense and naturally durable.

Compared to softwood, hardwood decking boards are much more expensive and can be more challenging to install. However, they require less maintenance which may work out more cost effective in the long run.

Hardwood decking boards are commonly sourced from exotic trees and are more desired for their aesthetic properties. Their natural warmer tones give an organic finish, eliminating the need for oiling and treating. With good design and upkeep, quality hardwood decking is often rated for 25+ years (some suppliers warrant 15–25 years).

Timber Decking Comparison

The overarching categories of softwood and hardwood are useful for understanding timber decking prices. You can also see at a glance in the table below how some popular types of timber compare:

Type Lifespan Maintenance Price Range
Pressure treated softwood 10 - 15 years High Budget
Redwood 15 - 20 years Medium Mid-Range
Cedar 20 - 25 years Medium High-Grade
Tropical hardwoods (e.g., ipe) 25+ years (with good design/maintenance) Medium - High High-Grade
Teak 30–40+ years in ideal conditions (25+ typical) Low - Medium Luxury
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Quick tip: For longevity and stability, hardwood wins. For a lower upfront spend and easier cutting, treated softwood is the safe bet.

Maintenance matters. Softwood can reach 10–15 years with yearly oiling, while well-kept hardwood can push several decades.

There are pros and cons to all of these styles, although the overall cost of decking and how it fits into your budget will often be one of the prevailing factors in any decision.

Checklist: Hiring a Timber Decking Installer

If you’re bringing someone in to fit timber decking, double-check these things before agreeing:

  • Are the quotes clear? Don’t just look at the price. Make sure it lists the timber, subframe, waste removal, VAT, start and finish dates – and anything that isn’t included.
  • Insurance and guarantees? Ask to see proof of public liability cover. Also, check if there’s a workmanship guarantee. It’s also worth asking how they take care of product warranties if anything fails early.
  • Seen their past work? If your installer is worth their salt, they should have before-and-after photos or a couple of references. Skim their MyJobQuote reviews. This’ll show you what local customers are saying.
  • What’s under the boards? The subframe matters — ask about joist size or centres, ventilation, end-grain treatment on any cut treated timber, and stainless or galvanised fixings.
  • How will they prep the ground? Things like levelling, drainage away from the house, leaving clearance for damp-proof courses, and making sure no pipes or cables get hit.
  • Are waste and access sorted? Enquire about whether they’re managing parking and getting the materials delivered. And what about skips or waste removal? Also ask whether they’ll take away old boards or turf.
  • What are the payment terms? A small deposit and staged payments are normal. By no means will you have to pay it all up front. Get them to explain how problems are fixed and who deals with permissions or balustrades.

FAQs

How Much Gap Should I Leave Between Boards?

Usually 5–6mm for timber. But follow the board guidance. You want drainage and airflow, plus a neat, consistent line across the deck.

Do I Need To Treat Cut Ends on Timber?

Yes. Any freshly cut end grain should be sealed with a suitable preservative before fixing. It helps resist moisture, rot, and early staining.

Can I Install Timber Decking Myself?

Small, low decks are DIY-able if you follow TDCA guidance. Anything raised or complex — bring in a local fitter and get a written spec, schedule and warranty.

If in doubt, get a couple of quotes on MyJobQuote and compare the method, not just the price.

Can I Lay Decking Straight Onto Soil?

No. Use pads, posts, ground screws, or pedestals and add a weed membrane for low decks. You need a stable, ventilated subframe that’s off the ground.

How Do I Stop Timber Decking Getting Slippery?

Keep it clean and clear. Wash off algae, brush debris from gaps, and use anti-slip oil or strips in traffic areas. Good airflow under the deck also helps.
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