Project Calculator

Metal Roof Snow Guard Calculator

Enter your roof dimensions, snow load, pitch, and panel details. The calculator estimates the rail pieces and clamps your project needs and checks the result against a worst-case capacity model.

Project Inputs

Snow Retention Calculator

Enter the roof details below. Results will show required rail pieces and clamps first.

Takes about a minuteNo account neededFree planning estimate

Snow Load

The single biggest driver of how much material your roof needs.

Roof Snow Load (psf)

Worst-case model: no shedding credit and no friction credit.

Roof Dimensions

Measured along the eave and up the slope to the ridge.

Roof Width, Along Eave (ft)

Rafter Length, Eave to Ridge (ft)

Roof Pitch (x:12)

Snow Retention System

Panel material and rail configuration for your roof.

Roof Material

Material selection adjusts estimated Universal clamp capacity. 24 ga steel is the tested baseline.

Rail System

Distance Between Seams (in)

Seam-to-seam spacing (tributary width). Pickup assumed on every seam.

Seam Height (inches)

Captured for future leverage/refinement; not used in current capacity math.

Rail Setup

Select single-rail or two-rail configuration for each row.

Rail Length

You'll see required rail pieces and clamps right away.