Linway Pitch Gauge

Pitch

—/12

Longer by

—

Stand the phone on its edge against the rake

Hold still 2 seconds. It locks and buzzes.

Cut length · over a roof

—

Type the short side, tap a fraction

Gable · both ends get shorter going up

Left pitch

Right pitch

Take off left—

Take off right—

Next piece longest

—

Set both pitches and type the length

Siding exposure 10 3/8″

Or set the pitch by hand

Course layout

Course	Height	Run in	On rake

From the eave line, one side of the gable. Run and rake to the nearest ¼″.

Accuracy check

Measure, tap 1st. Turn the phone end for end on the same spot, measure again, tap 2nd. The average cancels the phone's own error.