TrimJoist

TrimJoist®

floor systems-ewp

Description

TrimJoist® is a patented open-web floor truss system that combines the strength of an I-joist with the layout flexibility of a truss. Designed with wood diagonal webs and an open center, TrimJoist® allows for field trimming and easy routing of utilities—making it ideal for modern framing.

Common Applications

  • Single-family homes
  • Multi-family structures
  • Light commercial buildings
  • Remodels or additions where flexibility and utility access are key

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Specifications & Details

Key Specifications

  • Depths: Standard depths include 11-7/8", 14", 16", and 18" (custom depths also available)
  • Lengths: Available in custom lengths up to 30 feet or more, depending on load specifications
  • Web Configuration: Wood diagonal webs (not metal), which allow for trimming
  • End Trimming: Trimmable on both ends—typically 6" to 24" total, depending on depth
  • Top & Bottom Chords: Solid-sawn or LVL, depending on span and loading requirements
  • Bearing Requirements: Typically requires 3-1/2" minimum bearing at each end
  • Design Loads: Designed to meet or exceed L/480 live load deflection standards
  • Fire Rating: May require additional fire protection (e.g., drywall or encapsulation), depending on code
  • Code Compliance: Complies with IBC, IRC, and APA/EWS standards; stamped engineering drawings typically provided

Benefits

  • Open-web design simplifies HVAC, plumbing, and electrical runs—no drilling or notching needed
  • Trimmable on-site, unlike traditional trusses
  • Lighter than solid beams for easier handling and faster installation
  • Custom engineered for your project’s span and load needs
  • Sustainable—engineered wood maximizes fiber efficiency

Learn more at: https://trimjoist.com/

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