What is White Garden Timber?
The Wood Guide · Wood register
MaterialWhite garden timber
A trade term, not a tree. If you buy white garden timber, you need to know which species is in it — because the service life depends entirely on that.
- Collective name
- Mostly softwood
- Durability varies widely
White garden timber
A trade term, not a tree. If you buy white garden timber, you need to know which species is in it — because the service life depends entirely on that.
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A colour, not a species
White garden timber tells you something about how it looks and what it is meant for — nothing about how long it lasts.
In the trade the term covers light-coloured wood for garden and outdoor use. In practice it is predominantly softwood from conifers: spruce, Scots pine, other pines, poplar, sometimes larch. A few lighter hardwoods fall under it too. So the name refers to the colour and the typical use, not to one tree.
That makes the term risky when you buy. Two boards that both look light and fresh can be durability class 3 or class 5 — and that is the difference between ten years and three years outdoors. So always ask further: which species, and is it pressure-treated?
What the species do share is that they are easy to work, readily available in standard sizes, and affordable. For DIY projects that is exactly the combination that counts.
Which wood species is it, and is it pressure-treated? With those two answers you know whether it can go in the ground, how long it lasts above ground, and whether you still need to treat it.
- What it is
- collective name for light garden timber
- Mostly
- spruce, Scots pine, other pines, poplar
- Sometimes
- larch or light hardwoods
- Durability
- varies widely by species
- Mostly pressure-treated
- to extend the service life
- Workability
- easy to saw, drill and sand
- Availability
- good, in standard sizes
To be fair: the term says too little. Under the same name, wood is sold that lasts three years outdoors and wood that lasts twenty, and you cannot see the difference on the board. If you go by the term alone, you are buying on luck — and you only notice after the second winter.
Which species it covers
| Species | Colour | Class | Characteristic |
|---|---|---|---|
| Spruce | yellowish white to light cream | 4 | cheap, light, easy to work; pressure-treat for outdoor use |
| Pine | light yellow with reddish-brown heartwood | 3 – 4 | slightly harder than spruce; takes impregnation well |
| Pine | yellowish white with distinct knots | 4 | resinous; readily available |
| Poplar | almost white | 5 | very light in weight, but not durable |
| Larch | light with reddish-brown heartwood | 3 – 4 | more durable than spruce; does move a lot |
| Abachi or ayous | creamy white | 4 – 5 | light tropical hardwood; mainly indoors and in saunas |
What white garden timber is used for
Fences and garden screens
The most common use. Pressure-treated, and with posts suitable for ground contact — that is where the weak link lies.
Garden furniture
Light in weight and affordable. Solid spruce four centimetres thick lasts for years when pressure-treated.
Pergolas and canopies
Above ground and sheltered: here light softwood is more than adequate, provided the end grain is treated.
Decking
Possible with pressure-treated material, but expect more maintenance and splinters with the softer species.
Planters
Fine, with a liner on the inside and drainage at the bottom. The soil is the enemy here, not the rain.
DIY projects
The logical choice to learn with: cheap, light and forgiving when sawing.
What to look out for
- Ask for the speciesSpruce, Scots pine, other pine or poplar — that determines the durability class and therefore the service life.
- Ask about the impregnationPressure-treated or only surface-treated? That difference determines whether it can go in the ground.
- Look at the knotsLarge, loose knots eventually fall out and weaken the board. Firm, small knots are not a problem.
- Check for bowingSight along the board. Bowed or twisted pieces rarely come fully straight when you fix them.
- Expect to touch upEvery cut you make yourself is untreated wood. Treat end grain afterwards, especially in ground contact.
- Decide on your maintenance beforehandLet it turn grey or oil it every year? With light wood species the colour difference is more noticeable than with dark ones.
Frequently asked questions about white garden timber
Is white garden timber a wood species?
No, it is a collective name for light-coloured wood for outdoor use. Usually it is spruce, Scots pine, other pine or poplar.
How long does white garden timber last?
That depends entirely on the species and on the treatment. Untreated softwood lasts a few years outdoors; pressure-treated considerably longer.
Do I need to treat it?
For service life: impregnation is the norm with these species. For colour: an oil or stain, otherwise it turns grey — which is clearly visible on light wood.
Can it go in the ground?
Only if it is pressure-treated for ground contact. Surface-treated wood won't hold up.
What is the difference from hardwood in the garden?
White garden timber is lighter, cheaper and easier to work, but less durable. Hardwood is heavier and more expensive and lasts longer without treatment.
What do I ask when buying?
Which wood species it is and whether it is pressure-treated. With those two answers you know what you are buying.
More in the wood register
Every species that falls under this name is covered separately.
Have a question about your project? Just ask — we're happy to help.
Photo via Wikimedia Commons: Pinus sylvestris & Picea abies — Torbjörn Axelson, Public domain