RV Leveling Blocks Buying Guide: Blocks, Ramps, and Jack Pads

Blocks or curved ramps

Interlocking blocks build a customizable platform and can be shared with tongue or stabilizer jacks when the product permits. Curved ramps are faster for small side-to-side adjustments but have a fixed lift range and require enough clearance and tire contact.

Fit the RV and campsite

Measure tire width and spacing between tandem tires. Check the product's per-block or per-axle rating and the manufacturer's stacking pattern. Larger footprints distribute load better on soil, but every system still needs firm, stable ground.

• Rated capacity above the actual load placed on the product.
• Full tread support without sidewall contact.
• Enough pieces for tandem or dual-wheel arrangements.
• Bright color, carrying handle, and compact storage.
• Compatible chocks that prevent rolling after leveling.

Do not confuse leveling and stabilizing

Trailer stabilizer jacks reduce movement after the wheels carry the coach at the correct height. Unless the RV manufacturer explicitly says otherwise, stabilizers are not lifting jacks. Camco's setup guidance likewise levels side to side at the tires, chocks, then uses the tongue jack for front-to-back adjustment before stabilizing.

Avoid improvised supports

Cracked lumber, loose masonry, and blocks with unknown capacity can shift or fail. Inspect purpose-built products for UV damage, deformation, contamination, and cracks before each setup, and stay clear of the RV while it is being moved onto a platform.