Best RV Leveling Blocks

Here’s something nobody tells you before your first trip: your campsite is almost never level, and your RV cares. RV absorption refrigerators — the kind in most motorhomes and trailers — need to be within a few degrees of level to work properly and avoid permanent damage. Beyond the fridge, an unlevel rig means doors that swing, water pooling in the shower pan, slide-outs under stress, and sleeping with your head downhill. Leveling blocks are the simple, cheap solution: drive onto them or stack them under your tires and jacks until the bubble sits center. Every RVer carries some.

How to Choose: What Actually Matters

Two philosophies: stackable blocks vs. drive-on levelers. Interlocking stackable blocks (Lego-style) go under tires and stabilizer jacks — versatile and cheap. Curved drive-on levelers (like the Andersen) let you roll up a ramp to the exact height you need — faster and more precise for side-to-side leveling, but pricier. Many experienced RVers carry both: curved levelers for the wheels, blocks for the jacks.

Weight capacity. This is safety-critical. Your blocks must support your rig’s loaded weight with margin. Check your GVWR (gross vehicle weight rating — the maximum your loaded RV weighs, on the sticker by the door) and buy blocks rated well above the per-axle share. Cheap blocks crack under heavy fifth wheels; don’t gamble here.

Stack height. Each block adds roughly 1–1.5 inches. Most sites need 1–4 inches of correction; really sloped sites need more. A 10-pack of interlocking blocks stacked in a pyramid gives you up to ~4 inches under a tire. Curved levelers give up to 4 inches in one smooth ramp.

UV resistance. Blocks live outside in the sun. Cheap plastic gets brittle and cracks after a season or two of UV exposure. Look for UV-stabilized or UV-resistant plastics — it’s the difference between replacing blocks yearly and buying once.

Interlocking design. Good blocks lock together so the stack doesn’t shift when you drive onto it. Grids or posts on top also grip the tire. Avoid smooth, non-locking blocks — they squirt out from under tires at the worst moment.

Storage. Ten loose blocks are a pain. Sets with a storage bag or that nest compactly save real frustration. Curved levelers are bulkier but there are only two of them.

Stabilizer jacks are not for leveling. Worth saying clearly: the crank-down “stabilizer” jacks on travel trailers only stop rocking — they can’t lift the rig and will bend if you try. Level side-to-side with blocks under the tires first, front-to-back with the tongue jack (trailers) or front jacks (fifth wheels), then drop the stabilizers.

The Best RV Leveling Blocks

1. Andersen 3604 Camper Leveler — Best Overall

The Andersen leveler changed the game: instead of stacking blocks and guessing, you place the curved ramp in front of the tire and slowly drive up until you’re level — then slide the included chock under the low end. Precise to the inch, no stacking math.

Specs: 30,000 lb capacity · Up to 4″ of lift · Fits tires up to 32″ · Trimmable for smaller tires · Sold as a pair (2 levelers + 2 chocks) · ~$80–110

Pros:
– Infinitely adjustable within its range — nail level on the first try
– Fast: one person can level in under two minutes
– 30,000 lb rating covers most trailers and motorhomes
– No stacking, no guessing, no blocks shooting out

Cons:
– Only levels side-to-side (you still need blocks or pads under jacks)
– Bulkier to store than a bag of blocks
– Premium price — roughly 2x a 10-pack of blocks
– Not ideal for dual-axle trailers with tight tire spacing (check fit)

Bottom line: The fastest, most precise way to level side-to-side. Worth every penny.

Andersen 3604 Camper Leveler

2. Camco 44510 Heavy Duty Leveling Blocks — Best Budget/Value

The classic yellow Lego-style blocks. The Camco 44510 10-pack interlocks into whatever configuration you need — under tires, under tongue jacks, under stabilizers — and stacks to about 4 inches.

Specs: 10 interlocking blocks · Stacks to ~4″ · UV-stabilized resin · Includes storage bag · ~$35–50

Pros:
– Maximum versatility — one set does tires, jacks, and tongue
– Cheap enough to buy two sets
– Nests compactly in the included bag
– The most widely available leveling blocks anywhere

Cons:
– Stacking to the right height is trial and error
– Individual blocks can crack under very heavy rigs if stacked high — respect the weight limits
– Bright yellow fades (cosmetic, but the UV stabilization matters more)

Bottom line: The default starter set. Cheap, versatile, everywhere.

Camco 44510 RV Leveling Blocks

3. Tri-Lynx 00015 Lynx Levelers — Best Heavy-Duty Blocks

Lynx Levelers are the premium interlocking blocks, famous for a claimed 40,000 lb capacity — the highest in the stackable category. Modular design lets you build ramps, pyramids, and jack pads.

Specs: 10 interlocking blocks · 40,000 lb capacity · Modular interlocking design · UV-resistant · ~$45–65

Pros:
– Highest weight rating among stackable blocks — confidence for big fifth wheels
– Modular: configure as ramps, flat pads, or pyramids
– Excellent UV resistance for full-timers
– Very stable interlock — stacks don’t wander

Cons:
– Pricier than Camco for the same count
– Still trial-and-error stacking like all block sets
– Overkill (in a good way) for small trailers

Bottom line: The strongest stackable blocks you can buy. The pick for heavy rigs.

Tri-Lynx 00015 Lynx Levelers

4. Valterra A10-0918 Stackers — Best Alternative 10-Pack

Valterra’s Stackers are the other major 10-pack in the game: interlocking, UV-stabilized, and designed to work as both tire levelers and jack pads. A solid alternative if Camco or Lynx are out of stock.

Specs: 10 interlocking blocks · UV-stabilized · Works under tires and jacks · ~$35–50

Pros:
– Same versatile 10-pack format as the leaders
– Good interlocking stability
– Often competitively priced

Cons:
– Less widely stocked than Camco
– Weight rating less prominently documented — verify against your GVWR

Bottom line: A worthy third option in the 10-pack category.

Valterra A10-0918 RV Stackers

5. Beech Lane Stackable Leveling Blocks — Best Upgraded Budget Set

Beech Lane’s 10-pack brings thoughtful upgrades to the basic block formula: interlocking design, UV resistance, and a well-regarded storage bag — positioned as a step up from the cheapest sets without the premium price.

Specs: 10 interlocking blocks · UV-resistant · Storage bag included · ~$40–55

Pros:
– Good build quality for the price tier
– Bag and blocks feel a cut above bargain sets
– Strong user reviews from the RV community

Cons:
– Newer brand with less long-term track record than Camco/Valterra
– Verify weight capacity against heavy rigs

Bottom line: The “nice budget set” — a little better than the cheapest, well short of premium pricing.

Beech Lane RV Leveling Blocks

6. Kohree RV Leveling Blocks 10-Pack — Best Value Runner-Up

Kohree (known for budget-friendly RV accessories) offers a 10-pack of interlocking leveling blocks that hits the key specs — interlocking, UV-resistant, multi-use — at a competitive price.

Specs: 10 interlocking blocks · UV-resistant · ~$30–45

Pros:
– Competitive pricing in the 10-pack segment
– Covers the essentials: tires, tongue jack, stabilizers
– Good starter set on a tight budget

Cons:
– Least established of the block brands here — longevity less proven
– Confirm weight rating suits your rig before buying

Bottom line: A legitimate budget alternative; just verify the specs match your RV’s weight.

Kohree RV Leveling Blocks

Comparison Summary

Leveling solution	Style	Capacity	Max lift	Price range
Andersen 3604	Drive-on curved (pair)	30,000 lbs	4″	~$80–110
Camco 44510	10 interlocking blocks	—	~4″ stacked	~$35–50
Tri-Lynx 00015	10 interlocking blocks	40,000 lbs	~4″ stacked	~$45–65
Valterra A10-0918	10 interlocking blocks	—	~4″ stacked	~$35–50
Beech Lane 10-pack	10 interlocking blocks	—	~4″ stacked	~$40–55
Kohree 10-pack	10 interlocking blocks	—	~4″ stacked	~$30–45

Our pick: The Andersen 3604 for side-to-side leveling (fastest and most precise), plus a 10-pack of Camco 44510 or Lynx Levelers for jacks and tongue. That combo covers everything.

Frequently Asked Questions

How level does my RV actually need to be?
For absorption fridges (the common RV type), within about 3 degrees side-to-side and 6 degrees front-to-back — but level is always better. A simple bubble level on the fridge or floor is fine; phone apps work too. Compressor fridges (12V) don’t care about level at all.

Can I level with my stabilizer jacks?
No — this is the #1 beginner mistake. Stabilizer jacks only prevent rocking; they’re not designed to lift and will bend or break. Level with blocks under the tires (side-to-side) and the tongue/front jacks (front-to-back) first, then snug the stabilizers.

What’s the right order for leveling?
1. Park roughly, chock the wheels. 2. Check side-to-side level; drive onto blocks/levelers on the low side. 3. Chock again. 4. Level front-to-back with the tongue jack (travel trailer) or front landing gear (fifth wheel). 5. Drop stabilizer jacks just snug. 6. Re-check — the rig settles.

How many block packs do I need?
One 10-pack handles most situations for a single-axle trailer. Dual-axle or motorhome owners often carry two packs — you may need stacks under multiple tires plus pads under four stabilizer jacks.

Drive-on leveler vs. blocks — which first?
If budget allows one premium item: the Andersen for the wheels (where precision matters most), plus one cheap 10-pack for everything else. If budget is tight: two 10-packs of blocks do the whole job.

Can I just use wood blocks?
You can — 2×8 lumber cut into lengths is the old-school solution and it’s cheap. Downsides: heavy, rots, no interlocking (stacks shift), and campgrounds increasingly dislike them. Plastic blocks are lighter, grippier, and store smaller.

Do leveling blocks work on soft ground?
Partially — on soft grass or mud, blocks can sink. Put a flat pad, plywood square, or jack pad under the stack to spread the load. In real mud, reposition the rig instead of fighting it.

Beginner Mistakes to Avoid

Leveling with the stabilizer jacks. Worth repeating because nearly every beginner tries it once: stabilizers stabilize. They don’t lift. You’ll bend them.
Forgetting to chock before unhitching. Leveling means raising one side — an unchocked trailer can roll. Chocks go down before the trailer comes off the ball, every time.
Stacking blocks like a tower instead of a pyramid. Tall narrow stacks are unstable and can exceed the blocks’ rated capacity. Build wide pyramids — each layer smaller than the one below.
Driving onto blocks too fast. Creep up slowly with a spotter watching. A fast approach shoots blocks out the back or overshoots the stack.
Leveling once and never re-checking. Rigs settle, especially on soft ground and on the first night. Re-check the bubble after setup and again in the morning on multi-day stays.
Ignoring front-to-back. Beginners obsess over side-to-side (the visible lean) and forget front-to-back. Your fridge cares about both.

What to Carry: The Minimal Leveling Kit

If you’re buying from scratch, here’s the complete kit in priority order:

A way to measure — a small bubble level, or a phone app (free and accurate enough).
Wheel chocks — two minimum; get four for dual-axle. Never level without chocking.
Side-to-side solution — Andersen levelers (fast/precise) or one 10-pack of blocks.
A second 10-pack of blocks — for the tongue jack foot, stabilizer pads, and stacking higher on sloped sites.
Jack pads — flat pads that go under stabilizer feet to spread load on soft ground (blocks work fine for this too).

That’s it. This kit handles 95% of campsites you’ll ever park on.