Back to all deflection criteria
SpanMan calculates post deflection criteria in the following way:
- From the building type determine whether the post is in a residential or commercial building type.
- Start with the appropriate deflection criteria below.
- Find the most brittle load the member is supporting.
- Increase the span ratio deflection criteria based on the load's brittleness.
Residential deflection criteria for Posts
| Span Maximum (mm) | Span Ratio | Overhang Maximum (mm) | Overhang Ratio | |
| Dead Load | -1 | L / -1 | -1 | NA |
| Live Load | -1 | L / -1 | -1 | NA |
Commerical deflection criteria for Posts
| Span Maximum (mm) | Span Ratio | Overhang Maximum (mm) | Overhang Ratio | |
| Dead Load | -1 | L / -1 | -1 | NA |
| Live Load | -1 | L / -1 | -1 | NA |