How to Measure and Spec a Custom Gate Right

Most gate problems are not made in the workshop. They are made at the measuring stage. If you get the opening width, ground level, and clearances right, a custom gate fits the first time. This guide shows you exactly what to measure and how to record it, so you can hand a fabricator numbers they can trust.

Why measuring is the make-or-break step

A gate is built to a fixed size. If the opening is 10 mm narrower than you reported, the leaf will not fit. If the ground rises across the opening, a gate cut square will scrape or leave a large gap. Fabricators build to your numbers, so an error in measurement becomes an error in steel that is expensive to undo.

The measurements you actually need

1. The clear opening width

Measure between the two posts or pillars at the narrowest point, not wall-to-wall at the top. Pillars are rarely perfectly plumb. Measure at the bottom, middle, and top, then use the smallest figure. Note whether the fabricator should add the hinge and latch gap or whether your figure already includes it.

2. The ground profile

Lay a straight edge or a taut string across the opening and measure the gap to the ground at several points. This tells you if the ground is level, rises, or dips. A gate on rising ground must be by . Bookmark the permalink.