Home

Lumberyards

Boise Lumberyard

Wholesale Distribution

Stockton, CA

Contact

Login

9-1/2" RFPI-20 I-Joist

In Stock — Boise yard
$3.850 per linear foot
Pieces  
Length  

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

Phone Number:
208-283-6056

★★★★★ 5.0 · 17 Google reviews

View all Google reviews →

Bulk purchase pricing

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

Order total
Your price
$500–$1,999
Tier 1 discount
$3.657 / lf
$2,000–$5,999
Tier 2 discount
$3.542 / lf
$6,000+
Best public pricing tier
$3.388 / lf

Full house packages may qualify for deeper price discounts.

Boise Lumberyard

1200 Lake Hazel Ln
Boise, ID 83705

Phone Number:
208-283-6056

★★★★★ 5.0 · 17 Google reviews

View all Google reviews →
Framing Lumber | Timbers & Posts | Pressure-Treated Lumber | OSB Sheathing | I-Joists | Rim Board | LVL Beams | Boards | House Packages

Product Description

9-1/2" RFPI-20 I-Joists are supplied through our Boise, Idaho lumberyard for construction projects throughout the Treasure Valley. The RFPI-20 series is the industry-recognized equivalent to Weyerhaeuser TJI-110 and Boise Cascade BCI-5000 I-joists and can be used as a substitution where those joist series are specified. Featuring 1-3/4" LVL flanges, these engineered floor joists provide a consistent nailing surface and improved dimensional stability compared to dimensional lumber floor framing. I-joists are commonly used to reduce floor movement, minimize shrinking and warping, and support longer floor spans with less material weight.

Specifications
  • Depth: 9-1/2"
  • Flange Width: 1-3/4"
  • Series: RFPI-20
  • test Equivalents: TJI-110, BCI-5000
  • APA-rated engineered wood I-joist
Common Uses
  • Residential floor framing
  • Basement and first-floor systems
  • Single-family and light multi-family construction
  • Engineered floor systems paired with rim board and LVLs
  • Roof framing
Contractor & Builder Notes
  • Commonly installed at 16", 19.2", or 24" on center per manufacturer span tables
  • Official manufacturer span tables available in the Roseburg RFPI Residential Design Guide (PDF download)
  • Always verify spans, loads, and layouts using manufacturer literature or the engineer of record

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.