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At EcoChoice, we often talk about how sustainable timber is, but what does that really mean? Is it actually the most sustainable construction material out there? To learn more, we have put together this quick, evidence-based guide exploring just why responsibly sourced timber is the greenest choice for your construction projects. Let’s dive into it!

Carbon Capture and Sequestering Properties

When talking about sustainability, carbon footprint is always a good place to start. When sustainably sourced and processed near its end use site, timber can actually have a negative carbon impact, instantly giving it a huge bonus in terms of eco-credentials. This is because of carbon capture and sequestration.

As trees grow, they absorb carbon dioxide from the atmosphere and release oxygen. This CO₂

is then stored within the tree, where it remains as long as the timber is not rotting or breaking down. By opting for timber, you are using a material which actively traps and stores CO₂.

Of course, the additional steps taken to process timber and get it to your doorstep can add to the carbon footprint of your material. However, by shopping for native timbers, you can drastically reduce this and keep the CO₂ output of your material either negative or very low.

CO₂ Footprint Compared to Other Building Materials

Whether you are looking for decking boards or bog mats, the carbon footprint of timber is particularly low when compared to other materials.

For every dry tonne of timber, an average of 1.8 tonnes of carbon dioxide is removed from the atmosphere as trees grow.

When creating steel, every tonne releases an average of 1.85 tonnes of CO₂ into the atmosphere. Cement is the source of around 8% of the world’s total CO₂ emissions, while concrete is worse for the environment than flying.

The fact is that – other than timber – these simply are not sustainable materials for building our homes, towns, cities and infrastructure.

A Renewable Resource

Moving away from carbon footprint, it is also important to note that timber is a renewable resource. When responsibly forested, it is a building material which will never run out – unlike steel, aluminium, plastic, glass, concrete and cement. We do not have to mine the earth or pollute our oceans when using timber for construction. There are eco-friendly, minimally damaging ways to produce timber which could actually help protect our world’s woodlands, such as those outlined by the FSC.

Enhanced Insulation for Sustainable Buildings

As if that wasn’t enough, using timber products could also create more sustainable buildings! Timber has amazing thermal insulation properties, which is why it is such a prominent part of architecture in cooler climates, such as Scandinavia. It keeps buildings warmer when the weather’s colder, reducing the need for heating and cutting down on emissions from electricity and gas usage.

Find FSC-Certified Timber at EcoChoice

Timber is undoubtedly the most sustainable material used in construction. It can be carbon negative, it is renewable and it better insulates our buildings, all of which bring enhanced sustainability to building works. But to ensure your timber purchase aligns with your eco-friendly ethos, you need to source it from responsibly managed forests – that is non-negotiable.

Luckily that is where we come in. At EcoChoice, we supply PEFC and FSC-certified timber for UK construction projects: from piers to railway sleepers, as well as decking and cladding. The timber we supply is sourced from lands where biodiversity, conservation and sustainability are championed, ensuring your construction materials do better for our planet.

To learn more about the sustainability of our timber or to start an order, get in touch with our team today.

Timber sustainability

Ask Joe! Expert industry advice

Unsure which timer is best for your project?

Our timber experts have years of experience and will be able to match the perfect species to your project, as well as provide a quote for sustainable timber at highly competitive prices.

Frequently asked questions

Do you supply timber for domestic uses?

Yes, we supply timber for domestic applications as well as commercial and public constructions. From garden decking to shed cladding, we will be happy to supply smaller deliveries for home use.

Is your timber FSC-certified?

Yes, all timber we supply is FSC or PEFC certified and sourced from independently verified responsibly managed forests. If we can’t find your request in FSC/PEFC certified timber we’ll suggest an alternative that is certified or clearly note that the offer is minimum EUTR.

Where does EcoChoice deliver to?

EcoChoice delivers to construction sites, warehouses and homes across the UK, as long as there’s access and unloading for our trucks.

What are the best timber species for exterior use?

There are many different timber species suitable for exterior use and which is the best for your project depends on your requirements. In general, though, we recommend EkkiGreenheartOpepe and Oak for heavier civil/marine uses. For intermediary external use such as decking, where the timber needs to be both strong and durable but not on the same level as civil engineering (bridgespiling, etc) we usually supply CumaruIpe, Jatoba, and Balau. And for the lighter exterior use where the timber is non-structural such as cladding, we deliver CedarLarchThermowood and others.

Which timber is the most durable?

Durability Class 1 timbers are the most durable. This of course depends on the use (hazard) class they’ll be in service for. For direct ground and water contact such as sleepers, fenders, marine piling, etc, Ekki and Greenheart are known to be the most durable timbers available. For decking and cladding where there’s no direct ground contact (use class 3) there’s a much wider range of timbers such Larch, Cedar, Thermo modified Pine or Ash and others.

What’s the best timber for internal cladding?

Internal cladding, where your timber is not in ground and not exposed to the elements can be classed as either use-class 1 or 2 – in which case most timbers will meet this durability criteria. That is not to say they’ll be the best, since internal environments have lower humidity (moisture) levels than outside. So in these cases, it’s best to go for a kiln-dried timber cladding board as these are more stable and delivered already in lower MC (moisture content) than the usual fresh sawn timbers sent to external applications. A word of caution – as timber reacts to variations in moisture, it’s best to avoid cladding any areas inside your bathroom.

How can I make decking less slippery?

The first thing is to ensure your deck boards are kept clean from leaves and other debris which will, over time, cover the surface and make it more slippery. Grooved boards can be used to improve grip if installed and used perpendicular to traffic, so especially useful in narrow passages and footbridges. Lastly, you can add our Grip-Choice strips: these are a mix of epoxy with aggregates that add gripping ridges to your deck area. Gripchoice is an easy way to make decking less slippery and safer, especially over large areas or where there’s high traffic. We can pre-install Grip-Choice strips for your decking before delivery or ship the strips separately to add to your existing deck’s grooves as a retro-fit solution.

What wood machining services do you offer?

We can offer planing, sawing, drilling and profiling of rough-sawn wood to any profile you require: from handrails to large port fenders.

Can you supply pre-drilled timber?

Yes, we will be happy to provide pre-drilled timber which is tailored to your needs for quick installation, thus saving you valuable time on site.

What cladding profiles do you supply?

We provide a wide range of cladding profiles, including tongue and groove, featheredge and shiplap. You can check the standard profiles here – but we can also match or custom make profiles to suit your specific needs.

Does timber change colour?

Yes, timber is well-known for changing colour over time. Some species can darken quickly right after installation, and like most untreated wood will eventually weather to a beautiful silver-grey. Interior timber is less likely to change colour (depending on conditions), and timber can be stained, painted or treated with UV-resistant oils to reduce colour change.

Do I need to treat exterior timber?

Some timbers such as Oak and Ekki, can withstand the strains of exterior use without any treatment. However, to extend the lifespan and maintain the aesthetic of your wood, we do recommend treating your timber with stains and oils. Pre-treated timber, such as ThermoWood and OrganoWood, are low-maintenance options which are more durable, but can have their life service extended by applying a clean and stain maintenance schedule.

Do I need to treat interior timber?

Depends on what area the timber is being used. For floor joists and timber rafters, it is common to see timber treated, or least very well kiln-dried. Other uses such as flooring may benefit from varnishing while internal timber cladding for decorative purposes shouldn’t require any treatment other than if you want to change its colour with different types of stains or oils.

Where are you based?

We’re based in Cambridge, UK, and coordinate multiple sawmills all over the world to manufacture your order. We then organise delivery with a range of hauliers so that your orders gets to your site on time.

What are the usual decking sizes?

Timber decking is usually 21x140mm or similar. For heavier applications where there’s more load and traffic, we deliver 35 or 45mm thick boards (such as Hastings Pier). Narrower boards are also possible: 95-90mm is a standard width – but we can manufacture whatever size you require.

What are the usual cladding sizes?

Typical cladding section sizes are 18×95 and 18x145mm although we can always custom make a section to suit your project’s design requirements. That includes waney edge boards in Oak or Chestnut as well as extra wide 195mm boards.

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What our customers say about us

Good quality, great service, fast delivery!

5

Marinella Li

Always helpful! One of our valued TDCA DeckMark and CladMark accredited supplier members which means their quality procedures are routinely audited and stand up to scrutiny giving you extra peace of mind.

5

Janet Sycamore

Having needed the supply of cladding, decking boards and other specified timbers through out the year Eco choice have been very helpful in sourcing the specified timbers and quantities required at a very competitive price.

5

Tim Saunders

Great quality, service and price. A pleasure to deal with. I would highly recommend Eco Choice.

5

Emma Hurrell

Fantastic company- Mike and the team are the best in the business- worked with them for many years.

5

Prem Raja

Always reliable and quality products, easy to deal with company.

5

Stone Zone

4.9

Average rating on Google Reviews

  • 6 years ago

Having needed the supply of cladding, decking boards and other specified timbers through out the year Eco choice have been very helpful in sourcing the specified timbers and quantities required at a very competitive price.

Tim Saunders

  • 9 years ago

Wonderful guys!

Nicola Edmead

  • 9 years ago

Excellent service and outstanding product

Cindy Dicks

  • 6 years ago

Great quality, service and price. A pleasure to deal with. I would highly recommend Eco Choice.

Emma Hurrell

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