TrimJoist® is the marriage of an open web floor truss and a trimmable, wooden I-joist, bringing the best features of each to the relationship. As the name TrimJoist indicates, our product can be trimmed on the construction site for a custom fit. No more custom made floor trusses! Trimjoist's floor truss products are used by discriminating builders, contractors, and remodelers and specified by leading architects, engineers, and designers. The TrimJoist® can be quickly incorporated into any house and/or light commercial plan and is the first step to a floor system with superior quality and superior support.