Engineered Wood Products

Roof Trusses and Components Ltd. uses the latest proprietary software from Mitek and iStruct to provide layout and engineering design for your project.

Each roof truss, floor wood I joist and LVL beam have been analysed for your particular layout. We do not rely on span charts to specify the right product. Our layout software analyzes each and every engineered product in the floor and roof system as it pertains to your exact usage. 

Even if your architect or designer specified a particular sized beam, we will run the analysis to see if it passes code. This way you know for sure if your project will work!

All of the individual trusses are certified and sealed by a professional engineer.


LVL - Laminated Veneer Lumber


LVL Laminated Veneer Lumber

Roof Trusses & Components Ltd. carries a complete line of laminated veneer lumber (LVL) for residential, commercial and agricultural construction applications, as high performance beams and headers.

Manufactured using waterproof adhesives to pressure bond wood veneers with grains running parallel, LVL combines the best qualities of natural wood with the strength and reliability of an engineered wood product.

Rim Joist

Rim Board

Roof Trusses & Components carries a complete line of Rim Board for residential, commercial and agricultural construction applications. Rim Board is available in both laminated veneer lumber (LVL) and Oriented Strand Board (OSB) materials. Product depths exactly match the joist framing members and come in several thicknesses with a variety of structural properties.

Designed to be a framing member to support wall loads, tie joist together and transfer in-plane lateral/diaphragm loads, Rim Board offers a unique framing solution in platform construction.

International Beams' I-Joists


International Beam Joists

Roof Trusses & Components Ltd. distributes International Beams™ (IB) I-joists, which are engineered structural joists, manufactured to provide consistent, high performance floor and roof systems. Light in weight and designed for quality-conscious builders, IB's I-joists significantly reduce job-site labour and materials while providing roof and floor systems that are rigid and uniform.

Manufactured with 2x3 or 2x4 sawn lumber flanges and structurally enhanced Oriented Strand Board webs, IB™ joists will not warp, twist or shrink. IB™ joists are available in different series and depths ranging from 9 1/2" to 20", for both residential and commercial applications, and are available in lengths up to 48 feet.

I-Joist Floor Installation Notes

When constructing an I-Joist floor system, use the Custom Layout, Guides and the following notes for proper installation.

  • This layout is for the placement of I-Joist products only. 
  • Before laying out floor system components, verify that I-joist flange widths match hanger widths.  If not, contact your supplier.
  • Building Designer must verify all spans, locations and loadings for joists and beams. Project Coordinator to verify all lengths and quantities before ordering. 
  • Except for cutting to length, NEVER cut, drill or notch the top or bottom flange of the joists. 
  • Do not cut, drill or notch  LVL beams. 
  • Refer to I-Joist Installation Guide for proper installation instructions. 
  • Contractor to coordinate with mechanical, electrical and architectural drawings for the locations and sizes of floor / roof openings that will affect the location of joists and beams. 
  • Install I-joists so that top and bottom flanges are within 1/2 inch of true vertical alignment.
  • I-joists must be anchored securely to supports before floor sheathing is attached, and supports for mulitple-span joists must be level.
  • All joist and beams must have full bearing contact in hangers. Seat I-joists firmly in hanger bottoms to minimize settlement.  Also apply construction glue into seat of hangers during the installation of the joists and beams. 
  • Minimum bearing lengths:  1 3/4 inches for end bearings and 3 1/2 inches for intermediate bearings.
  • Leave a 1/16 inch gap between the IB I-joist end and a header.
  • Blocking to be I-joist unless otherwise noted. 
    Contractor is responsible for the safety of workers during erection of I-Joists. 
  • Restrain ends of floor joists to prevent rollover.  Use rimboard or equivalent, rim joists or I-joist blocking panels. 
  • Provide permanent lateral support of the bottom flange of all I-joists at interior supports of multiple-span joists.  Similarly, support the bottom flange of all cantilevered I-joists at the end support next to the cantilver extension.  In the completed sructure, the gypsum wallborad ceiling provides this lateral support.  Until the final finished ceiling is applied, temporary bracing or struts must be used.
  • Never install I-joists where they will be permanently exposed to weather, or where they will remain in direct contact with concrete or masonry.

Engineered Hangers and Connectors

Roof Trusses and Components carries a complete line of wood to wood metal hangers by Simpson Strong-Tie. These connectors are developed to meet the changing needs of the builder who requires truss and engineered floor fastening systems.

Below are a few of the more common hangers and applications. Click for further details.

General Notes

These documents are provided by Simpson Strong-Tie and should be treated as a guide. Consult the Simpson Strong-Tie "Wood Construction Connectors" catalogue for hanger design information.

Instructions for the Installer

  1. All specified fasteners (quantity and type) must be installed according to the instructions in these installation guides and the Plated Truss catalogue. Incorrect fastener quantity, size, type, material or finish may cause hanger failure.
  2. Install all fasteners before loading the connection.
  3. Use proper safety equipment.
  4. The hanger must be sized for the truss used.
  5. Multiple trusses must be fastened together to act as a single unit.
  6. Pneumatic/power installed fasteners may deflect and injure the operator or others. Power tools may be used to install hangers, provided the correct quantity and type of nails are properly installed in the nail holes. Power tools with nail hole-locating devices should be used. Air driven palm nailers offer another installation option. Follow the manufacturer's instructions and use the appropriate safety equipment.
  7. Truss shall bear completely on the connector seat, gap between the truss end and the header shall not exceed 1/8".
  8. See Simpson Wood Construction Connectors Catalog for additional installation options.


Multiple rooflines framed