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6x6 x 20' Douglas Fir #1 Lumber

32 pieces in stock — Boise yard
$156.00 per piece

Available for pickup or delivery

Online orders are typically staged same day for fast, hassle-free pickup or on your selected pickup date.

Boise Lumberyard

1200 Lake Hazel Ln
Boise, ID 83705

★★★★★ 5.0 · 16 Google reviews

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Bulk purchase pricing

Applies to the entire order (mix & match across all products).

Order total
Your price
$500–$1,999
Tier 1 discount
$148.20 / pc
$2,000–$5,999
Tier 2 discount
$143.52 / pc
$6,000+
Best public pricing tier
$137.28 / pc

Full house packages may qualify for deeper price discounts.

Framing Lumber OSB I-Joists Rim Board LVLs House Packages

Product Description

6x6 x 20' Douglas Fir #1 Lumber is a solid structural timber commonly used for major posts, columns, beams, and heavy framing applications requiring substantial strength and stability.

Cut from Douglas Fir and graded #1, this timber offers enhanced structural quality with fewer defects and strong load-carrying performance. It is surfaced four sides (S4S) and supplied green (S-GRN), making it suitable for structural supports, beam construction, and above-grade exterior applications.

Specifications
  • Nominal Size: 6x6
  • Length: 20'
  • Species: Douglas Fir
  • Grade: #1
  • Moisture Condition: Green (S-GRN)
  • Surfacing: S4S
Common Uses
  • Structural columns and vertical supports
  • Primary beam members
  • Large pergola and patio posts
  • Timber framing components
  • Heavy load-bearing construction
Contractor & Builder Notes
  • Pre-drill for large-diameter bolts or structural fasteners to minimize splitting
  • Confirm load paths, bearing conditions, and connection hardware per engineered drawings

Delivery Options

  • Fast pickup at our Boise yard
  • Moffett job-site unload available
  • Combine with OSB, LVLs, I-joists, or additional framing lumber in one delivery

Return Policy

  • 100% store credit on all items returned in unused, like-new, fully resaleable condition.
  • Store credit can be used toward any future purchase and does not expire.

If you already have a material list

Email it to info@dynamiclumbersolutions.com for fast, accurate pricing.

Many customers save significantly when they price their full list with us.

No material list yet?

If your project is already moving forward and you need a material list, we can help with quantity takeoffs for active builds.