Douglas fir versus pressure-treated timber is one of the most common choices for fences, canopies and decks. Both materials are popular, affordable and available quickly from Meppel - but differ in appearance, chemical treatment and total lifetime cost.
Short answer: choose Douglas fir for a warm, natural appearance without chemical pressure treatment (durability class 3 above ground). Choose pressure-treated pine when you want the most affordable fencing timber, including under greater moisture exposure.
Comparison at a glance
| Property | Douglas fir | Pressure-treated pine |
|---|---|---|
| Durability | Class 3 (approx. 15–25 years above ground) | Class 3 after treatment (approx. 10–20 years) |
| Treatment | Not required; oil/stain optional for colour | Factory pressure-treated (green → weathers to grey) |
| Appearance | Warm reddish-brown, natural grain | Greenish when new, later grey-brown |
| Price level | Mid-range | Affordable |
| Ground contact | Avoid; use a post base or hardwood post | Better suited than untreated Douglas fir |
| Typical applications | Fencing, canopies, facades, decking | Fencing, play equipment, simple structures |
When should you choose Douglas fir?
- You want a warm timber colour without the green colour of pressure treatment.
- The project is mainly above ground (fence boards, beams, weatherboard, canopy).
- You accept or plan periodic maintenance with oil or stain to retain the colour.
More details: buying Douglas fir timber and hardwood versus Douglas fir.
When should you choose pressure-treated pine?
- Budget comes first and you want competitive prices per linear metre.
- You are building a functional fence or structure where appearance matters less.
- You want factory-preserved softwood that is ready for outdoor use sooner.
Note: retreat cut ends and use a dust mask when sawing. Also read pressure-treating fencing timber.
Price and service life: which costs less?
Pressure-treated timber usually costs less initially. Douglas fir often performs better for appearance and the project's residual value. Over 10–15 years, maintenance and replacement can narrow the difference - especially for visible work. Current prices are in the webshop; for larger volumes, request a quote.
Frequently asked questions
Is Douglas fir better than pressure-treated timber?
Not automatically. Douglas fir is often the better choice for visible work and a natural appearance; pressure-treated timber wins on purchase price and immediate outdoor use.
Can I put Douglas fir in the ground?
Preferably not. Use a concrete pier or post holder, or choose hardwood or pressure-treated posts for ground contact.
Which should I choose for a fence?
Both work. Many customers choose Douglas boards with pressure-treated or hardwood posts. Our advisers in Meppel can help determine the right combination.
Browse our Douglas fir range and pressure-treated timber, or book an advice appointment.
Related: Pine vs Douglas · Outdoor pine and spruce · Outdoor timber species