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Choosing the right load capacity means calculating load per caster (total loaded equipment weight divided by number of casters), applying a safety factor for uneven distribution, and matching every caster on the equipment to at least that rating.
Don’t forget to include the equipment’s own weight, not just cargo, and account for shock loads separately if the application involves impacts, dock plates, or rough floors.
Every caster purchase — undersizing capacity is a direct path to premature failure and downtime.
Sizing to cargo weight alone, forgetting equipment weight. Total loaded weight includes the cart or equipment itself, not just what’s being carried.
What safety factor should I use?
A common starting point is 1.5x the calculated per-caster load, with more margin for rough floors, shock loads, or uneven weight distribution.
Do all casters on the same equipment need the same capacity?
They should all meet or exceed the required per-caster load — mismatched capacities create an uneven weak point.
