Trus Joist TJI Joists - Shop by Brand - Arlington Coal & Lumber MA

The Only Way to Build Your Floor

Trus Joist TJI Joists has been considered the number one brand that builders turn to when they need quality high performance flooring solutions. Lightweight, customizable, and easy to set up, Trus Joist TJI Joists provide unparalleled dimensional strength and performance, giving builders the stability they look for in flooring products. Each one is manufactured to precise specifications to be highly resistant to shrinking, twisting, and bowing that result in the development “soft” floor. With its consistency and stability, it’s no surprise that Trus Joist TJI Joists has exceeded the expectations of contractors, builders, and homeowners everywhere.

Why Choose TJI Joists?

Easy to work with – can be drilled and cut quickly.
Built for strength and consistency.
Long length gives you flexibility when it comes to setting up your floor plans.
No callbacks once the flooring is finished.
Highly resistant to bowing, shrinking, and twisting.
Backed by limited lifetime warranty.

TJI Joists Vs. Plated Trusses

TJI Joists

Lightweight (3 lb/ft) and trimmable.
Wrapped in TimberStrand LSL rim board giving you a solid nailing surface with high shear values. Allows 1-hour separation between units and corridor.
No need for strongbacks.
Reduces costs (not just in floors but in other building materials) thanks to its shallow depth floor system design.
Does not require a fully sprinkled floor cavity (NFPA 13 Section 8.14.1.2.6)
Uses only carpet and pad to achieve Sound Transmission Class (STC) and Impact Insulation Class (IIC) ratings of 50.

Plated Trusses

Heavy (5-6 lb/ft) and cannot be trimmed.
No shear transfer -- requires 1x4 nailing strip on its perimeter just to prevent racking. Needs the use of draft stop or extra gypsum to achieve the 1-hour separation between units and corridors.
Strongbacks are required to help it maintain some 1-hour fire assemblies. 2x6 strongbacks are needed at 10’ on-center to reduce vibration.
Uses a deep floor system design (16” +).
Requires a fully sprinkled floor cavity unless gap is completely filled with noncombustible insulation.
Requires concrete overlay or a sound-deadening mat to achieve STC and IIC ratings of 50.