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OBThe Overhead Bench

Field notes on sectional doors, their operators and the hardware that carries them

About this bench

What The Overhead Bench is, who writes it, how a work order is put together.

The Overhead Bench is an independent editorial reference on the sectional garage door and the operator that moves it. It is written for the person who owns the house with the door, and for the person who has to decide, on a Saturday morning, whether the noise is normal or whether a part is about to fail.

What a work order contains

Each work order takes exactly one question about the door on its track. The answer comes first, in the opening paragraphs, before any background. What follows is written so a reader can jump to the part they need: what the rating means, what to measure, what is normal, what is not.

The sources are named at the end of the order. They are the published standards, the installation instructions that ship with a door and an operator, the service literature, and the manufacturer's own published ratings. Where a source does not settle a question, the work order says so instead of guessing.

The number and the date

A work order is numbered inside its organ, so a reference such as DR-002 belongs to the second order filed under the door. It is dated with the day it was last checked, not the day it was first written. That date orders the front page, dates the entry in the feed and appears in the sitemap.