ICF Lintel Span Calculator
Calculate maximum spans for Insulating Concrete Form lintels.
Maximum Allowable Span
3.56 m
Calculation Details
- Thickness:150 mm (5.9 in)
- Depth:600 mm (23.6 in)
- Reinforcement:1-15M Bottom Bar (#5 rebar)
- Supporting:Light-Frame Roof Only
- Snow Load:1.50 kN/m² (31 psf)
⚠️ Important Disclaimer:
This calculator is for reference only and provides preliminary estimates based on BC Building Code 2018 Tables 9.20.17.4.-A, B, C.
Always consult with a qualified structural engineer or building professional for structural design and code compliance verification.
Important Notes: • Deflection criterion is L/240, where "L" is the clear span of the lintel
• Linear interpolation is permitted between ground snow loads and between lintel depths
• 10M stirrups are required at maximum d/2 spacing for spans greater than 1,200 mm
• Canadian rebar sizes: 10M ≈ #3 US, 15M ≈ #5 US
Important Notes: • Deflection criterion is L/240, where "L" is the clear span of the lintel
• Linear interpolation is permitted between ground snow loads and between lintel depths
• 10M stirrups are required at maximum d/2 spacing for spans greater than 1,200 mm
• Canadian rebar sizes: 10M ≈ #3 US, 15M ≈ #5 US
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