Load rating

Load rating is the manufacturer's number for how much weight a piece of storage can safely carry. It shows up on shelving as a per-shelf figure, on hooks and brackets as a per-hook figure, and on overhead racks as a total system figure. The number assumes the item is installed correctly, so a shelf rated for 200 pounds only holds that much if it is anchored the way the instructions describe.

Ignoring load rating is one of the fastest ways to turn garage storage into a hazard, since a shelf that looks sturdy empty can flex or pull loose once it is loaded with paint cans, tools, or holiday bins. Weight also needs to be spread evenly across a shelf or rack rather than stacked in one corner, because uneven loading concentrates stress on a single bracket or anchor point.

When shopping, compare load rating against what you actually plan to store, not just what looks impressive on the box, and remember that racks mounted to a wall or ceiling are only as strong as the studs or anchors backing them. A common mistake is buying a high-rated unit and then hanging it on drywall alone instead of into framing.