What lengths do flashing sticks come in?

Drip edge and step flashing are usually 10-foot sticks. Valley metal is often sold in 10-foot sections as well. This calculator rounds up to whole sticks.

How much overlap should flashing have?

Overlap flashing pieces by at least 2 inches, and seal the lap. This calculator adds a 10% allowance to cover overlaps and end cuts.

Calculator

Flashing Calculator

Flashing sizing is per-linear-foot. Enter your eaves, rake, valley, and wall lengths and this calculator returns the total linear feet plus recommended stick counts.

Eaves (drip edge)

Rakes (drip edge)

Valleys

Wall / step flashing

Linear ft (+10%)

188 ft

10-ft sticks

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Frequently asked

What lengths do flashing sticks come in?: Drip edge and step flashing are usually 10-foot sticks. Valley metal is often sold in 10-foot sections as well. This calculator rounds up to whole sticks.
How much overlap should flashing have?: Overlap flashing pieces by at least 2 inches, and seal the lap. This calculator adds a 10% allowance to cover overlaps and end cuts.

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