How To Measure For Gable Vents

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Measuring Guide for understanding how to measure louver vents, decor vents and arched trim products. All products here are 3 dimensional objects. The width and height are just 2 dimensions.

The third is the depth. Most of these products require only these 3 measures.

The instructions below will apply for Louvered Vents and Decor Vents.

These will be measures for the vent alone.  Not any flange chosen.

First, choose the shape of the vent to be measured.