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10 compact interlocking blocks rated at 40,000 lbs — the RV campground staple
Last reviewed: March 2026
Set of 10 interlocking polypropylene leveling blocks in the compact 2x2 size, rated at 40,000 lbs. Stack to your desired height up to 4.5 inches. The smaller footprint fits under most standard RV tires and jack pads.
At a glance
Why this product
This is the block that started the RV leveling block category. Camco's 2x2 FasTen blocks interlock, stack to 4.5 inches, and handle 40,000 lbs. They are in nearly every RV campground in the country for a reason — reliable, affordable, and they do not crack in cold weather. Ten blocks handles most leveling situations. Buy a second set if you run a big rig.
Detailed specs
| Leveling Type | Stackable Block |
| Weight Capacity | 18144 kg |
| Max Lift Height | 11 cm |
| RV Type Compatibility | travel_trailer, fifth_wheel, class_a, class_b, class_c |
| Interlocking | Yes |
| Pieces Per Set | 10 |
| Anti-Slip Surface | Yes |
| Storage Bag Included | No |
| Material | Polypropylene |
| UV Resistant | Yes |
| Freeze Resistant | Yes |
Best prices
| Retailer | Price | Status | |
|---|---|---|---|
| Amazon | Check price | Check availability | Check Price |
Disclosure: MyCargoRacks.com is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more
Disclosure: MyCargoRacks.com is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more
Price may vary. Prices and availability are subject to change.
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