// multi-utility computation suite · offline · instant · precise
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build.structural-roof-pitch Calculator
Calculates rafter length, roof surface area, and material quantities from span and pitch, expressed as rise-over-run (e.g., 6:12). Pitch determines snow load capacity, drainage speed, and whether a roof is walkable for maintenance.
Inputs
Rise
Reference formula or conversion factor shown for context.
Span
Distance between supports (m). Longer spans experience larger bending moments — structural adequacy must be rechecked.
Results
pitch
Reference formula or conversion factor shown for context.
angle
The computed angle in degrees or radians.
rafter multiplier
Gratuity amount — the suggested amount to add to the bill as a service tip.