Short answer: Douglas fir is naturally more durable above ground (class 3) with a warm reddish-brown look. Pine (grenen) is cheaper softwood (class 4–5) and outdoors mainly makes sense as pressure-treated pine. “Douglas vs pine” therefore depends on whether you mean raw pine or treated fencing timber.
Comparison at a glance
| Property | Pine (untreated) | Pressure-treated pine | Douglas fir |
|---|---|---|---|
| Durability class | 4–5 | ~3 after treatment | 3 (heartwood) |
| Look | Pale yellowish | Green → weathers grey | Warm reddish-brown |
| Outdoor treatment | Needed / avoid | Factory impregnated | Often untreated above ground |
| Ground contact | No | Yes (correct class) | Limited / avoid permanent |
| Price level | Low | Low–mid | Mid |
| Typical use | Indoor / temporary | Fencing, posts | Canopy, decking, façade |
When pine, when Douglas?
- Budget fencing – pressure-treated pine.
- Visible natural colour – Douglas.
- Treated vs Douglas detail – also read Douglas vs pressure-treated.
More context: what is pine timber?, what is Douglas?, outdoor timber species.
Frequently asked questions
What is the difference between pine and Douglas?
Douglas is naturally more durable and warmer in colour; pine is cheaper and outdoors usually pressure-treated.
Douglas vs pine: which is better value?
Treated pine is usually cheaper to buy; Douglas can pay off through look and less chemical treatment above ground.