Leveling blocks and ramps
Lynx Levelers review
A trailer that is not level side to side will not run its absorption refrigerator correctly, and one that is not level front to back drains its holding tanks badly. Loose lumber blocks fix the height but not the sliding: stack two boards under one jack foot and the top board tends to squirt out sideways the moment weight comes off it unevenly.
Lynx Levelers interlock instead of stacking loose, which is the reason they became the category standard rather than a premium option. This review covers what Tri-Lynx actually publishes for the 11 piece pack, the pack size question that matters more than any other spec here, and when the 22 piece pack or a four-sided interlocking design fits a site better.
On this page
- What is the Lynx Levelers 11 pack, and what does Tri-Lynx actually publish for it?
- How does the 11 pack compare against the 22 pack and the Camco FasTen?
- What does Tri-Lynx actually publish for the 11 pack?
- What is the limitation of the Lynx Levelers 11 pack?
- What are the alternatives if the 11 pack runs short?
- What should you check before buying leveling blocks?
What is the Lynx Levelers 11 pack, and what does Tri-Lynx actually publish for it?
The 11 pack includes ten interlocking Lynx Leveler blocks plus one Lynx Cap that levels the top of a stack, all carried in a nylon storage bag. Tri-Lynx states the blocks interlock to configure for most leveling functions and states the assembled stack withstands up to 40,000 lb. Each block measures 8.5 by 8.5 by 1.5 inches, adding roughly 1 inch of height per block once interlocked, and Tri-Lynx has manufactured the design in the United States since 1992.
How does the 11 pack compare against the 22 pack and the Camco FasTen?
All three interlock rather than stack loose. What actually separates them is how many pieces come in the box and how many sides of each block actually lock to its neighbor.
| Published rating | Lynx Levelers, 11 pack with cap | Lynx Levelers, 22 pack with two caps | Camco FasTen RV Leveling Blocks, 10 pack |
|---|---|---|---|
| Price | $33.18 | $59.99 | $60.03 |
| Pieces | 11 | 22 | 10 |
Every figure here is the manufacturer's own published rating. A blank is a figure the maker does not publish, and we leave it blank rather than estimating it. The rating stamped on the part you actually receive is what governs.
What does Tri-Lynx actually publish for the 11 pack?
Tri-Lynx rates the assembled Lynx Levelers stack to 40,000 lb and includes 11 pieces plus a nylon storage bag in the standard pack.
Published standard A published, traceable figure: a standards body, a federal regulation or a manufacturer specification states it.
| Published spec | Lynx Levelers, 11 pack |
|---|---|
| Piece count | 11 (10 blocks, 1 cap) |
| Rated stack load | 40,000 lb |
| Block dimensions | 8.5 in x 8.5 in x 1.5 in |
| Added height per block | About 1 in when interlocked |
| Storage | Nylon bag included |
| Made in | United States |
Tri-Lynx does not publish a separate rating for a single block outside of a fully interlocked stack.
What is the limitation of the Lynx Levelers 11 pack?
These blocks are plastic, and a concentrated jack foot load resting on a hard, uneven point such as a buried rock can crack a block in a way that spread-out lumber never fails. That is the tradeoff for not squirting out sideways: the load stays put, which also means it stays concentrated on whichever block is actually under the jack.
The more common problem is simpler: 11 pieces is not always enough. A tandem axle trailer parked on a badly sloped site can need blocks under both tires on the low side plus a stack under the tongue jack, and running out of pieces halfway through leveling a heavy trailer is the single most common complaint about the standard pack.
What are the alternatives if the 11 pack runs short?
The 22 pack doubles the pieces to 20 blocks and two caps, which is what a tandem axle trailer on a reliably bad site actually needs once both tires and the jack are all being built up at once. A reader who wants a wider base rather than just more height should compare the Camco FasTen instead, which interlocks on all four sides rather than two, so a stack can be built wider as well as taller under a heavy fifth wheel jack.
What should you check before buying leveling blocks?
Count the axles and the jack points that will actually need leveling before choosing a pack size, since a tandem axle trailer on an uneven site can use up 11 pieces faster than expected. Follow the trailer leveling guide for the actual procedure, check single axle against tandem axle trailers if the tire count under the low side is still unclear, and see the best RV leveling blocks for how pack size and interlock style fit together across the category.
How we chose
We did not test this hardware in person and we never claim to. Picks are researched from manufacturer specification sheets, published towing standards, and the recurring themes in verified owner reviews. Every pick is matched to a real gross trailer weight rating, a real tongue or pin weight rating, a real receiver size or a real load index rather than to a price bracket, and it is placed in the tier where its published capability actually belongs. We rejected the unbranded flood that dominates the search results in several of these categories, because a weight distribution hitch, a brake controller, a trailer tire and a set of safety chains are all parts whose failure puts a loose trailer on a public road. Where a figure is towing convention rather than a published standard we label it that way, and where a manufacturer does not publish a figure we leave it out instead of estimating it.
Sources
- Tri-Lynx published specifications for the Lynx Levelers 11 pack and 22 pack
- Camco published specifications for the FasTen leveling blocks
Frequently asked questions
How many pieces come in the standard Lynx Levelers pack?
The standard pack includes 11 pieces: ten interlocking blocks and one leveling cap, carried in a nylon storage bag. Tri-Lynx also sells a 22 piece pack with 20 blocks and two caps for trailers or sites that need more height and width built up at once.
What weight do Lynx Levelers withstand?
Tri-Lynx rates an assembled, interlocked stack of Lynx Levelers to withstand up to 40,000 lb. That figure applies to blocks locked together into a pyramid rather than to a single loose block, which is the point of the interlocking design in the first place.
Is the 11 pack enough for a tandem axle trailer?
Often, but not always. A tandem axle trailer parked on a badly sloped site can need blocks under both tires on the low side plus a stack under the tongue jack, which can use up 11 pieces before the trailer is actually level. The 22 pack covers that situation with room to spare.
Can Lynx Levelers crack under load?
Yes, though rarely under normal use. A concentrated jack foot load resting on a hard, uneven point such as a buried rock can crack a plastic block, which is the tradeoff for a design that stays put instead of squirting out sideways the way loose lumber does.
What is the difference between Lynx Levelers and the Camco FasTen blocks?
Both interlock rather than stack loose, but the Camco FasTen locks on all four sides of each block rather than two, which lets a stack be built wider as well as taller. That matters most under a heavy fifth wheel jack on an uneven site.
Do leveling blocks change how much a trailer can carry?
No. Leveling blocks only set the trailer's height and angle for towing and camping. They do not change cargo carrying capacity, GVWR or any axle rating, which are set only by the trailer's own certification label.
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Researched, not professional advice. This page is compiled from published standards, manufacturer towing guides and product specifications, and owner-review consensus, not hands-on testing. Figures described as a rule of thumb are towing convention rather than published standards, and they are labelled that way wherever they appear. Nothing here overrides your own ratings. Work your payload sum before your tow rating, because payload is the limit that actually binds on most half ton trucks and nearly every SUV. Load a conventional trailer to 10 to 15 percent tongue weight and a fifth wheel to 15 to 25 percent pin weight, and never lighter: a tail heavy trailer is what starts sway. Weigh the rig loaded rather than trusting a brochure dry weight. A weight distribution hitch and a set of air bags both restore ride height and control, and neither one raises a single rating. Trailer brakes are required by state law above a threshold that varies by state, and a breakaway battery that has quietly gone flat is the normal condition of most trailers on the road.