Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
All measurements indicate the wheel diameter by the tread width.
The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.
W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.
Rubber and polyurethane favor floor protection; phenolic and steel favor heavy capacity. Compare materials →















| Tread | Core | Wheel sizes | Rated per caster | Listed temperature | Where it fits |
|---|---|---|---|---|---|
| Polyurethane | Aluminum | 5, 6 and 8 in | 800 to 1,500 lb | -45°F to 180°F | quiet, floor-friendly and long wearing |
| Rubber | Polyolefin | 4 and 8 in | 250 to 400 lb | -20°F to 160°F | cushioned and quiet on finished floors |
| Phenolic | 4, 6 and 8 in | 800 to 2,500 lb | -50°F to 250°F | hard and easy rolling on smooth, dry floors | |
| Semi-steel | 8 in | 1,250 lb | -45°F to 600°F | rough floors, heat and heavy loads |
Ratings are for single casters of contractor prefab & jobsite cart casters, from product fields [S1].
| Wheel | Treads | Rated |
|---|---|---|
| 4 x 2 in | rubber and phenolic | 250 to 800 lb |
| 5 x 2 in | polyurethane | 1,500 lb |
| 6 x 2 in | polyurethane and phenolic | 800 to 1,250 lb |
| 8 x 2 in | rubber, semi-steel and polyurethane | 400 to 1,250 lb |
| 8 x 3 in | phenolic | 2,500 lb |
Single contractor prefab & jobsite cart casters are rated 250 to 2,500 lb; most fall between 800 and 1,500 lb.
Most contractor prefab & jobsite cart casters use 4 x 4-1/2 in. Other plates on contractor prefab & jobsite cart casters: 4 x 11 in and 4-1/2 x 6-1/4 in.
Polyurethane leads on contractor prefab & jobsite cart casters, rated 800 to 1,500 lb per caster. Among contractor prefab & jobsite cart casters, rubber is next at 250 to 400 lb.
Yes. Wheel-only listings for contractor prefab & jobsite cart casters are here, sized 8 in; measure bore and hub length before you order.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
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