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.










Hot tub and spa dollies on solid oak decks: 50 x 28 in with 10 in pneumatic wheels rated 1,400 lb, and 40 x 18 in with 3-1/2 to 5 in rubber or 8 in pneumatic wheels rated 1,000 lb.
| Deck | Wheels | Rated load | Best surface |
|---|---|---|---|
| 50 x 28 in oak | 10 in pneumatic | 1,400 lb | Grass, gravel, driveway, dock plates |
| 40 x 18 in oak H-frame | 8 in pneumatic | 1,000 lb | Outdoor, compact footprint |
| 40 x 18 in oak solid deck | 3-1/2 to 5 in thermo rubber / non-marking | 1,000 lb | Indoor floors, lower profile |
Active product titles and capacity fields [S1]. Ratings are per dolly.
Related: furniture dollies · off-road casters · pneumatic tires
On this page, 1,000 lb on the 40 x 18 in oak dollies and 1,400 lb on the 50 x 28 in oak dollies with 10 in pneumatic wheels, per dolly.
No. Drain first. A filled spa often weighs several thousand pounds and exceeds these ratings.
The oak RoverMax / Lonestar-style decks on this page are USA-built solid oak. Confirm the listing for the exact model you pick.
Jordan Wilson, CasterHQ · reviewed October 26, 2026 · 844-439-4335 · info@casterhq.com
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