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Camco’s FasTen 10-pack is designed for RV owners who want stackable leveling support without hauling loose lumber. This editorial guide is based on current product information and RV setup principles; RVGearScout did not perform a hands-on test.
Quick verdict
The FasTen blocks make the most sense for travel trailers and motorhomes that need a modular, easy-to-store way to raise a low-side tire or support approved jacks. The interlocking format lets you build a gradual platform, while the integrated carrying system keeps the set together between campsites. They are not a substitute for wheel chocks, jack stands, or the leveling instructions supplied by your RV manufacturer.
What stands out
The current set contains ten polymer blocks that lock together for storage and can be arranged to suit the campsite. That flexibility matters on gravel and mildly uneven pads, where a fixed-height ramp may be too much or too little. A broad block footprint can also keep an approved jack foot from sinking into softer ground.
The tradeoff is that stackable blocks still require deliberate setup. Build a stable ramp rather than a vertical tower, keep every tire fully supported, and never exceed the product’s stated stacking limit. Inspect each block for cracks, warping, or embedded stones before reuse.
Fit and campsite checks
Measure tire width and consider whether a dual-wheel axle needs a wider arrangement. Confirm that every contact point stays on the block surface. On sloped sites, reposition the RV if the amount of correction feels excessive; leveling accessories cannot make an unsuitable campsite safe.
Use the parking brake and properly sized wheel chocks according to the RV manual. Stabilizer jacks reduce movement after leveling, but most are not designed to lift the RV. Hydraulic and electric leveling systems also have their own pad and extension limits.
Who should buy it
This set suits campers who value compact storage and want small, repeatable height adjustments. A curved drive-on leveler may be faster for single-axle trailers, while larger coaches may need wider or heavier-duty pads selected around axle weight and the leveling system.
View the Camco FasTen blocks on Amazon
Featured photo by Devon MacKay on Unsplash.