Product Description

11-7/8" RFPI-90 I-Joists are supplied through our Boise, Idaho lumberyard for luxury home projects throughout the Treasure Valley. This premium series combines an industry-standard 11-7/8" depth with heavy-duty 3-1/2" wide flanges to deliver maximum stiffness and vertical load capacity. Engineered to replace old-fashioned dimensional 2x12s, they stay straight and flat, preventing uneven subfloors. This series serves as a direct equivalent to Weyerhaeuser TJI-560 and Boise Cascade BCI-90.

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

Sales & Return Policy

All Sales Final: Material processing and custom cutting begin immediately upon order submission. No cancellations, returns, or exchanges are accepted under any circumstances. Buyers are solely responsible for verifying all structural dimensions, series, and specifications prior to ordering.

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.