Cedar Posts, Beams & Rafters
Western Red Cedar posts, beams and rafters for pergolas, porches and outdoor structures, supplied to builders and homeowners who want naturally decay-resistant softwood.
About Cedar Posts, Beams & Rafters
Western Red Cedar is a naturally decay-resistant softwood used for posts, beams, rafters and trim. The heartwood contains thujaplicins, fungicidal compounds behind that resistance, and it is more durable than sapwood. Cedar is light, with a dried density around 24 to 25 lb/ft3, stable, and accepts stain and sealer well.
It does not need chemical treatment for above-ground use, though sealing slows weathering. Rough-sawn and surfaced lumber is sold by nominal size, and actual dimensions are smaller: 4×4 is 3-1/2 x 3-1/2 in, 4×6 is 3-1/2 x 5-1/2, 6×6 is 5-1/2 x 5-1/2, 2×6 is 1-1/2 x 5-1/2 and 2×8 is 1-1/2 x 7-1/4. Grade and moisture content vary by supplier, so we verify them at order.
For a quote on cedar posts and beams, send a cut list with nominal sizes, lengths and counts, rough-sawn or surfaced, and grade preferences. Axiom South ships nationwide.
Colors, sizes and specifications
Sizes and configurations
- 4×4 (3-1/2 x 3-1/2 in actual)
- 4×6 (3-1/2 x 5-1/2)
- 6×6 (5-1/2 x 5-1/2)
- 2×6 (1-1/2 x 5-1/2)
- 2×8 (1-1/2 x 7-1/4)
Features
- Natural decay resistance
- Light weight, stable
- Accepts stain and sealer
Specifications
| Dried density | About 390-400 kg/m3 (24-25 lb/ft3) |
|---|---|
| Natural decay resistance | Heartwood contains thujaplicins, fungicidal compounds |
Best for
- Pergola and porch posts, beams and rafters
Frequently asked questions
Why is cedar used outdoors?
Older-growth heartwood contains thujaplicins that resist decay, and the wood is light with a tight, straight grain and few knots.
Cedar Posts, Beams & Rafters photos
One product or the whole package
Order this on its own, with a few related products, or with everything else for the project. One itemized quote, shipped to all 50 states. Need someone to install it? Find an installer serving your area.
Request a quote for Cedar Posts, Beams & Rafters
Send plans, measurements, or photos and we will prepare an itemized quote. You can also call us with questions.