Toll Free: 1-800-667-3511

Engineered I-Joists

Strength and efficiency in every span with precision-engineered I-Joist roof and floor systems by Pacific Truss.

I-Joist Roof & Floor Systems

Say goodbye to warped, crowned, or shrinking floors. When building high-performance structures, selecting the right materials is critical. I-joists are an essential component of modern flooring systems and roof framing. They are made from top and bottom flange materials, typically composed of Laminated Veneer Lumber (LVL) or Structural Composite Lumber, connected by a web made of Oriented Strand Board (OSB). This unique combination creates a lightweight, cost-effective, and incredibly strong product. These characteristics make I-joists ideal for applications such as floor joists and ceiling joists.
request qUOTE
I-joists
Ijoist

Pacific Truss and TJI Joists

To ensure high-quality and robust construction outcomes, we incorporate TJI® I-joists into our designs. Known for their exceptional dimensional stability across longer spans, TJI® joists resist warping, twisting, and shrinking—creating a more stable foundation for flooring systems. By leveraging the superior performance of TJI® I-joists, we provide our clients with durable and high-performance flooring systems.

Available I-joist Sizes

TJI 110 11-7/8", 14", 9-1/2"

TJI 230 9 1/2", 11 7/8", 14", 16"

TJI 360 9 1/2", 11-7/8", 14", 16", 18"

TJI 360C 16"

TJI 560 9 1/2", 11-7/8", 14", 16" PRO, 18"

TJI 210 9 1/2", 11 7/8", 14", 16"
Tji end view
Floor system project

Floor Systems You Can Depend On

When selecting materials for your next construction project, make sure they’re built to last. Pacific Truss is dedicated to delivering innovative, high-quality flooring solutions using TJI joists. Whether you're working on a residential home or tackling a large-scale commercial build, we’re here to help you achieve your design goals with precision and expertise.

Key Advantages

Superior Strength

I-joists deliver exceptional strength with the ability to span long distances without sagging, minimizing the need for load-bearing walls. This makes them perfect for creating open floor plans and spacious designs. We ensure structural integrity that complies with building codes.

Reliable Sizing

Unlike traditional dimensional lumber, I-joists are precision-manufactured for uniform size and shape. The consistency reduces unexpected delays or callbacks related to misaligned joists during installation.

Flexible Design Options

I-joists design accommodates various applications, from floor and roof framing to more complex structural systems. The flanges provide reliable support, while the OSB webbing enhances stability, making them suitable for both residential and commercial construction projects.

Versatile and Customizable

They are incredibly adaptable, allowing plumbers, electricians, and contractors to easily drill or cut them for utility installations like ductwork and pipes. The TJ-Pro® Rating System even allows for customizable floor performance tailored to specific project needs.

Precision Manufacturing

Every joist used in our projects benefits from advanced precision engineering, ensuring long-lasting reliability. From cutting-edge coating technology to meticulous construction, these joists resist the challenges of crowning and shrinking, offering peace of mind for years to come.

Simplified Installation

TJI joists are both lightweight and offered in extended lengths, making them easier to handle and install. This efficiency speeds up project timelines and reduces costly callbacks, helping to save time and money.

New Product - TRIFORCE®

TRIFORCE® is a versatile all-wood, open web joist designed for quick and seamless MEP installations. Crafted with 100% robotic precision, it delivers unmatched accuracy and dependability. It is fully adjustable on-site and compliant with the 2018/2015 IRC R302.13 fire-rating. TRIFORCE® is built to perform and is perfect your next project. The open joist adapts for single-family homes, multi-family homes, and non-residential building construction. The joists are available in many different lengths and depths with 24" that you are able to trim.
Triforce project

I-Joists Guides and Charts

Trus Joist TJ-Pro Rating Q&A
DOWNLOAD
Specifier's Guide for TJI 110, 210, 230, 360, and 560 Joists - Canada
DOWNLOAD
Mid-rise Reference Guide
DOWNLOAD
Visual Literature Guide - Canada
DOWNLOAD
Product Overview: Parallam PSL
DOWNLOAD
Installation Guide for Floor and Roof Framing with TJI 110, 210, 230, 360 and 560 Joists
DOWNLOAD
Let us build your next high-performance I-joist system.
Request Quote Today
© 2025 Pacific Truss
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram