Timber beams and posts are essential components of a reliable structural framing system. Proper sizing depends on the span, loads, timber grade, support conditions, tributary area, connections, and how forces are transferred through the structure.
Beam Sizing
Timber beam design typically considers roof and floor loads, clear span, tributary width, point loads, bending, shear, deflection, and bearing. The selected member needs to provide adequate strength while maintaining acceptable serviceability under the expected loading conditions.
Post Sizing
Posts transfer loads from beams and upper framing into the foundation. Their design may require checks for axial compression, combined bending and compression, post height, slenderness, bracing, connection forces, and bearing at the base.
Load Path And Bearing
A continuous load path is critical. Loads should transfer from the roof and floor framing through beams, posts, connections, and foundations without creating overstressed or inadequately supported members. Beam bearing and post support should therefore be coordinated with the foundation design.
Structural Checks
Depending on the project, calculations may include:
- Bending and shear
- Deflection
- Axial compression
- Combined loading
- Bearing
- Stability
- Support reactions
- Connection forces
- Applicable load combinations
Deliverables
We can provide timber beam and post sizing, structural calculations, framing plans, member schedules, bearing details, connection details, and detailed drawings suitable for permit documentation.
Send the architectural plans, structural spans, roof and floor layouts, project location, and timber species or grade if known. We can develop the required timber framing design and supporting documentation.