Your timber delivery turns up on site and you’re wondering, “Now what? How do I keep this lot in good condition until I can actually use it?”
Unlike bricks or tiles, timber is a natural material that continues to react to its surroundings, long after it’s been sawn. Rain, humidity and even how it’s been stacked can all affect its appearance. With the wetter, more unpredictable weather we see these days, knowing how to store wood properly is important.
We’re here to walk you through the key principles of timber storage, based on years of experience in the yard. These practices will help you keep your timber safe and ready for use.
Why storing timber correctly matters
Timber is different from other building materials because it’s hygroscopic, meaning it absorbs and releases moisture depending on its environment. If it’s left unprotected or stacked poorly, you can end up with:
- Unsightly staining or tannin bleed
- Mould and mildew growth
- Weakening at points of contact with the ground
- Shorter lifespan overall
With some straightforward precautions, you can prevent most of these issues and make sure your wood looks and performs as it should.
Keep timber off the ground
The number one mistake people make is leaving timber directly on the ground. Moisture will travel upwards and damage your wood before you even get started.
The solution is simple – make sure you elevate it. Use “sacrificial timbers” to raise your stack clear of damp surfaces and puddles. Something sturdy like Douglas Fir offcuts works well. Spacing these evenly also stops long lengths from sagging in the middle.
This small effort makes a big difference in preserving the straightness and integrity of your boards and beams.
Let the wood breathe
Covering timber might feel like the right move, but sealing it tightly does more harm than good. When air can’t circulate, moisture gets trapped inside the stack, and that’s exactly when mould and rot thrive.
A better approach is to encourage ventilation:
- Use thin spacers between layers of boards so air can move freely.
- Choose breathable covers or netting rather than solid sheeting.
- Leave ends of stacks exposed where possible to encourage even drying.
Timber, whether air-dried, kiln-dried or freshly cut, always benefits from good airflow. Think of it as letting the wood breathe.
Protect against ground-level splash
Even once timber is installed, there’s one danger zone that often gets overlooked – ground level. Rain hitting paving or soil bounces back up and soaks the bottom of cladding, posts or fences, leading to early decay.
Best practice is to design with this in mind:
- Keep the lowest parts of timber at least 300mm above the ground.
- Use stone bases or padstones to lift posts out of splash range.
- Make the lowest elements easy to repair or replace if necessary.
It’s a small detail in your project planning that pays off hugely in terms of longevity.
Expect tannins to leach
If you’re working with Oak, it’s important to know that tannins will naturally wash out when the timber is exposed to rain. This can leave rusty tea-coloured marks on surfaces below.
It’s not a fault, just a stage in the timber’s life cycle. To work around it:
Install Oak later in the year, giving the winter months time to flush tannins before summer weather. Hold off on finishing landscaping or paving directly beneath Oak until leaching has reduced.
Accept that it’s a temporary process. After a while, the staining fades and the timber settles in beautifully.
Choose the right fixings
The connection between wood and metal is often underestimated. Use the wrong screws or nails and you’ll quickly see black streaks and corrosion.
The most reliable option is austenitic stainless steel (316 grade) fixings. They resist rust, prevent chemical reactions with tannins and maintain their strength for decades. Yes, they’re more expensive, but they’re also an investment in the durability of your project.
Consider design details
Even the toughest timber species can fail early if the design doesn’t allow for water movement and ventilation. Likewise, softer species can last for generations if detailed well.
Some design principles worth following:
- Build in overhangs or drip edges to keep surfaces dry.
- Angle sills, ledges and capping to shed water instead of holding it.
- Create air gaps behind cladding for circulation.
- Secure joints and fixings firmly to prevent movement and ingress.
These details reduce maintenance and keep the material looking its best.
Avoid over-stocking
There’s often a temptation to order timber early and store it on site “just in case.” The reality is that leaving it lying around for long periods usually leads to damage or wasted material.
Where possible, order in sync with your project timeline. Most timber suppliers can work with you to deliver when you need it, minimising the risk of distortion or accidental knocks while it waits to be used.
For indoor projects, allow time for timber to acclimatise to the local humidity before installation. For outdoor use, less idle time is usually better.
Don’t panic about a bit of rain
It’s worth remembering that wood doesn’t become saturated overnight. A sudden shower won’t undo weeks of drying. Moisture takes time, often weeks or months, to penetrate and change the actual content of the timber.
So if your beams or cladding get rained on during transport or while stacked outside, don’t stress. Once conditions improve, they’ll dry out again. Rain is part of the natural seasoning process and timber is more resilient than we sometimes think.
The bigger picture
How you store timber matters but so does where it comes from in the first place. Local and certified sources provide added reassurance:
- Local timber often has a lower carbon footprint and is better suited to the UK’s climate.
- Certification schemes such as Grown in Britain (GiB) and PEFC guarantee traceability and sustainability.
- Knowing the story of your timber adds meaning to your project and connects you to the wider forestry cycle.
Get in touch today
At English Woodlands Timber, every board, beam and cladding panel in our yard has been carefully selected, responsibly sourced and stored with the same attention to detail we encourage our customers to follow.
Come and see us, or give us a call. Our specialists are always happy to chat. We’ll help you find the perfect species for your project, share practical advice on how to care for it and make sure you get the absolute best from your timber.
Please call 017308 16941 or email us on sales@englishwoodlandstimber.co.uk to arrange a convenient day and time to visit our West Sussex woodyard.
