Camco RV Leveling Blocks, Interlocking Nested Design and Storage Bag, Each Block 8.5" x 8.5" x 1", 10-Pack (44510) Review (2026)
Updated September 20, 2026 · Research-based review
Our verdict
Camco's 10-pack of interlocking leveling blocks each measure about 8.5 by 8.5 by 1 inch, made from UV-stabilized resin with a nested design that packs into the included storage bag. It suits RVers who want a large stack of simple blocks to level tandem axles or multiple jacks, without the ramps or chocks some competing kits bundle in.

Camco's 10-Pack of interlocking nested RV leveling blocks, each 8.5" x 8.5" x 1", with a storage bag (44510).
Price range: See on Amazon
What we liked
- + 10-Pack gives enough blocks to level tandem axles and jacks
- + Nested design stores compactly in the included bag
- + 8.5" x 8.5" footprint spreads jack and tire weight
Trade-offs
- - 1" height per block means stacking several on steep sites
- - Blocks are not ramps, so pull on carefully to avoid slipping
What is in the pack
This kit includes 10 individual leveling blocks, each measuring about 8.5 by 8.5 by 1 inch, along with a zippered storage bag with a handle to keep the full set organized in a storage bay between trips. Camco states the blocks are compatible with single wheels, double wheels, hydraulic jacks, tongue jacks, stabilizer jacks, fifth wheel jacks, and tandem axles, making this a fairly general-purpose set rather than one built for only a single narrow leveling scenario. Ten blocks is enough to level more than one wheel position at once or run several separate stacks under multiple jacks on a larger rig.
Material and stacking design
The blocks are made from UV-stabilized resin, a plastic formulation intended to resist becoming brittle or fading from sun exposure over repeated seasons of outdoor storage and regular use, which matters for a product that often lives loose in an exterior compartment for months at a time. Each block adds about 1 inch to the stack height, and the interlocking nested design is meant to keep a stack from shifting sideways once a tire or jack is resting on top of it. Camco also states the solid bottoms help resist sinking into soft ground compared with a thinner, unreinforced block design without that added support.
Storage and portability
Camco's nested design allows the blocks to sit inside one another for storage, and the included zippered bag with a carrying handle keeps the set from rattling loose in a basement compartment during travel down the highway. This kind of compact storage matters more than it might first seem, since a bag of loose plastic blocks can otherwise shift around and take up more room than needed in an RV bay that is already tight on space for other gear. The bright yellow color of the blocks also helps them stay visible on the ground at dusk or in otherwise low light conditions.
Height limits and technique
Because each block only adds about 1 inch of height, leveling a significant slope means stacking several blocks rather than using a single piece, which takes more time and care than a wedge-style ramp designed to climb a slope in one continuous motion. These are flat interlocking blocks rather than ramps, so a tire needs to be pulled onto the stack carefully and slowly to avoid it slipping off the edge, particularly once the stack gets taller than two or three blocks stacked together. Chocking the opposite wheel is a good habit to form once a stack is fully in place to help prevent any unwanted rolling on the site.
Who this set suits
This set fits RVers who want a straightforward stack of leveling blocks that can also do double duty under jacks and stabilizers, rather than a kit built primarily around ramps meant for driving on. The 10-block count gives enough material to level tandem axles on both sides at once or to support several jack points on a larger trailer or motorhome. Campers who specifically want a ramp for a smoother, more gradual drive onto a stack, rather than a step climb, may prefer a kit that bundles blocks together with dedicated ramp pieces instead of this simpler block-only set.
Frequently asked questions
How many blocks come in this set?
It includes 10 individual leveling blocks, each measuring about 8.5 by 8.5 by 1 inch, plus a zippered carrying bag.
What is each block made from?
Camco makes the blocks from UV-stabilized resin, intended to resist becoming brittle or fading from repeated sun exposure over time.
Can these blocks be used under jacks as well as tires?
Yes, Camco lists compatibility with single wheels, double wheels, hydraulic jacks, tongue jacks, stabilizer jacks, fifth wheel jacks, and tandem axles.
How much height does each block add?
Each block adds about 1 inch to the total stack height, so leveling a steep site means stacking several blocks together.
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