A strong choice for dual wheels should fit the tire arrangement, provide a stable way to gain height, and include enough pieces or grip features for your campsite; the right option depends on whether you prefer a drive-on ramp or stackable blocks. This roundup compares products that explicitly mention dual tires, tandem axles, or dual-wheel leveling, alongside general-purpose block kits that may suit some RV setups. Camco FasTen 4×2 RV Leveling Blocks for Dual Tires leads because its listing directly names dual tires and tandem axles, and its ten interlocking blocks add one inch per block.
Curved levelers from CARMTEK and OULEME offer a different approach, with non-slip features and stated capacities. Check your tire spacing and vehicle instructions before buying: product listings do not establish a universal fit for every dual-wheel configuration.
Camco FasTen 4×2 RV Leveling Blocks for Dual Tires is the leading pick because its product title explicitly identifies dual tires, and its listing confirms use with double wheels and tandem axles. The ten interlocking blocks stack to a desired height, with each block adding one inch, and an integrated handle helps with carrying and storage. For buyers who prefer a curved drive-on leveler rather than separate blocks, CARMTEK Camper Leveler is a dual-axle alternative with a stated anti-slip jointing system.
Our Top Picks
Best OverallIts title specifies dual tires, and the listing confirms double-wheel and tandem-axle use; ten interlocking blocks add one inch each.
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Best Dual-Axle RampDesigned for dual-axle trailers, this curved two-pack includes wheel chocks and a stated anti-slip jointing system.
View on Amazon
Best Tandem FitThe listing identifies tandem-wheeled RVs and tires up to 32 inches in diameter, with rubber anti-slip pads and leveling from 1/2 to 4 inches.
View on Amazon- Most Complete Kit OFISPEED Ramp Kit
- Largest Block Set RVMATE 24-Pack Blocks
Compare these RV leveling options
| # | Product | Dimensions | Weight | Buy |
|---|---|---|---|---|
| 1 | 1. Camco FasTen 4×2 BlocksBest Overall | 10.69 x 17.06 x 8.69 in | 1 lb | View on Amazon |
| 2 | 2. CARMTEK Camper LevelerBest Dual-Axle Ramp | 15 x 6 x 4 in | 11.79 lb | View on Amazon |
| 3 | 3. OULEME Curved LevelersBest Tandem Fit | — | 8.07 lb | View on Amazon |
| 4 | 4. OFISPEED Ramp KitMost Complete Kit | 12.99"L x 9.06"W x 7.09"H | — | View on Amazon |
| 5 | 5. Camco FasTen 2×2 BlocksVersatile blocks for wheels and jacks | 10.5"L x 8.5"W | 8 lb | View on Amazon |
| 6 | 6. Keltrion Interlocking BlocksAdjustable support for dual wheels | 17.5 x 8.6 x 6.9 in | 6.98 lb | View on Amazon |
| 7 | 7. Kohree Curved LevelersCurved ramps with grip mats | 17.32 x 6.69 x 6 in | 14.24 lb | View on Amazon |
| 8 | 8. OULEME 8-Piece BlocksWide-base jack support kit | — | — | View on Amazon |
| 9 | 9. CircleRoad 12-Pack BlocksOne-inch increments for custom leveling | — | 8.82 lb | View on Amazon |
| 10 | 10. RVMATE 24-Pack BlocksLargest Block Set | — | 18.66 lb | View on Amazon |
Detailed Reviews: Best RV Leveling Blocks Dual Wheels

#1 · Best Overall
1. Camco FasTen 4×2 Blocks
- Dimensions: 10.69 x 17.06 x 8.69 in
- Weight: 1 lb
Best for: Handle-equipped blocks for dual tires.
Why it ranks #1: Its title specifies dual tires, and the listing confirms double-wheel and tandem-axle use; ten interlocking blocks add one inch each.
A twist-down T-handle lets the Camco FasTen blocks lock together for storage and provides a convenient way to carry them. The 10-pack is explicitly identified for dual tires, giving RV owners a stackable option that also accommodates several wheel and jack configurations.
Each block adds one inch to stack height, allowing you to adjust support in measured increments rather than choosing a fixed ramp height. Camco lists use with double wheels, tandem axles, hydraulic jacks, tongue jacks, stabilizer jacks, and fifth-wheel jacks. The integrated handle lifts for carrying and twists down to secure the blocks together for storage. Its quad-grid design is described as optimizing strength and weight, supporting a pack intended for repeated handling.
- Explicitly identified for dual tires
- Each block adds one inch of stack height
- Twist-down T-handle locks blocks together for storage
- Compatible with several jack types and tandem axles
- The one-inch stacking increments do not provide a thinner adjustment step.
Skip it if you want included thinner top pieces for more refined stack increments; RVMATE’s 24-pack includes 0.75-inch top blocks.
This Camco set suits dual-tire RV owners who want incremental block height and a handle that secures the pieces for storage. The one-inch steps are straightforward, but buyers seeking thinner adjustments should note that limit.
Full product details
| Brand | Camco |
|---|---|
| Item Weight | 1 pounds |
| Item model number | 21025 |
| Manufacturer | Camco |
| Part Number | 44525 |
| Model | 44525 |
| Dimensions | 10.69 x 17.06 x 8.69 inches |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Camco FasTen 4×2 RV Leveling Blocks for Dual Tires, Gray, 10 Pack, 44525
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#2 · Best Dual-Axle Ramp
2. CARMTEK Camper Leveler
- Dimensions: 15 x 6 x 4 in
- Weight: 11.79 lb
Best for: Quick setup for double axles.
Why it ranks #2: Designed for dual-axle trailers, this curved two-pack includes wheel chocks and a stated anti-slip jointing system.
CARMTEK’s three-step leveling process starts by pushing the thin end beneath the tires, giving double-axle trailer owners a clear drive-on workflow. Its patented anti-slip jointing system links the leveler’s grip channels with the chock’s notches to help keep the chock from sliding while level.
The jointing system matches grip channels to chock notches according to the RV’s weight, with more channels lining up as weight increases. That connected interface addresses chock movement while the RV is level. The supplied setup guidance uses three steps: place the thin end tightly under the tires, drive onto the leveler, then use the chock. The product is identified for dual-axle trailers and tested up to 35,000 pounds, offering a ramp-and-chock workflow rather than separate block stacks.
- Patented anti-slip jointing system connects leveler and chock
- Identified for dual-axle trailers
- Setup described in three steps
- Tested up to 35,000 pounds
- The two-piece leveler kit is a ramp-and-chock system, not a large assortment of stackable blocks.
Skip it if you want separate blocks for stacking under wheels and jacks; Camco FasTen 4×2 RV Leveling Blocks support both double tires and several jack types.
CARMTEK suits double-axle trailer owners who want a drive-on leveler with a linked chock and a defined three-step process. Its ramp-and-chock format differs from individual blocks for building support under jacks.
Full product details
| Brand | CARMTEK |
|---|---|
| Item Weight | 11.79 pounds |
| Item model number | Leveler_15in |
| Manufacturer | Carmtek Camper Leveler |
| Part Number | 0035547 |
| Model | Standard RV Levelers |
| Dimensions | 15 x 6 x 4 inches |
| Special Features | Level in 3 Easy Steps, Lifetime Warranty, Patented Anti-Slip Jointing System, Tested Up To 35.000 Lbs |

#3 · Best Tandem Fit
3. OULEME Curved Levelers
- Weight: 8.07 lb
Best for: Curved ramps for tandem tires.
Why it ranks #3: The listing identifies tandem-wheeled RVs and tires up to 32 inches in diameter, with rubber anti-slip pads and leveling from 1/2 to 4 inches.
OULEME’s curved ramp levels any increment from one-half inch to four inches, giving tandem-trailer owners adjustable drive-on height without constructing a block stack. Its gear-mesh surface and two thickened rubber pads address slippage, while the product lists compatibility with tires up to 32 inches in diameter.
The compact curved levelers are identified for tandem-wheeled RVs and can be used for increments between 0.5 and 4 inches in under five minutes. HDPE construction is specified alongside a tire-weight limit of up to 35,000 pounds and a maximum diameter of 32 inches. For hard, slippery ground, the instructions place a rubber mat in front of or behind the wheel, then position the thin lip between tire and mat before driving up slowly.
- Adjusts leveling from 0.5 to 4 inches
- Lists tire support up to 35,000 pounds and 32 inches in diameter
- Gear-mesh surface and two rubber anti-slip pads
- Compatible with tandem-wheeled RVs
- The stated leveling range ends at four inches.
Skip it if you need more than four inches of lift from a curved leveler; the OULEME 8PK offers stackable blocks for building a different-height setup.
This OULEME ramp suits tandem-trailer owners who want quick, incremental drive-on leveling and included anti-slip pads. Its listed range is one-half to four inches, so check that boundary against the lift your site requires.
Full product details
| Brand | OULEME |
|---|---|
| Item Weight | 8.07 pounds |
| Item model number | GT-17PS1 |
| Manufacturer | OULEME |
| Part Number | GT-17PS1 |
| Model | RV Leveling Blocks |
| Package Dimensions | 13.39 x 9.45 x 7.13 inches |
Listed on Amazon as: OULEME 2 PK RV Leveling Block, Dual Axle Trailer Curved Leveler Ramp, Blue
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#4 · Most Complete Kit
4. OFISPEED Ramp Kit
- Dimensions: 12.99"L x 9.06"W x 7.09"H
Best for: Ramp kit with mats and level.
Why it ranks #4: Its ramp kit includes two chocks, two anti-slip mats, a bubble level, and a carry bag, with a stated 35,000-pound load capacity.
This OFISPEED kit combines two levelers with two chocks, two anti-slip mats, a bubble level, and a carry bag, giving RV owners several setup pieces together. The gearwheel mesh and mats provide two stated measures against slipping while backing a camper tire onto the levelers.
OFISPEED lists a 35,000-pound capacity and polymer construction for the ramp-style levelers. The surface’s precise gearwheel mesh is intended to resist sliding as a tire backs onto the ramp, while the two anti-skid pads add another friction point. The included bubble level supports checking the setup, and the chocks provide additional wheel-control components. A carry bag keeps the listed kit pieces together for travel and campsite use.
- Stated capacity up to 35,000 pounds
- Gearwheel mesh and two anti-slip mats
- Two chocks and a bubble level included
- Carry bag included
- The kit is a two-leveler ramp system rather than a large assortment of stackable blocks.
Skip it if you want a 24-piece assortment for building custom stacks; RVMATE RV Leveling Blocks 24 Pack offers many individual interlocking blocks.
OFISPEED suits RV owners who want a ramp kit with mats, chocks, a bubble level, and a carry bag in one package. Its two-leveler format is a practical boundary if your dual-wheel setup calls for multiple stacked blocks.
Full product details
| Brand | OFISPEED |
|---|---|
| Color | Orange |
| Dimensions | 12.99"L x 9.06"W x 7.09"H |
| Load Capacity | 35000 pound |
| Manufacturer | OFISPEED |
| Part Number | FCTPQ-02 |
| Material | polymer |
| Model Number | FCTPQ-02 |

#5
5. Camco FasTen 2×2 Blocks
- Dimensions: 10.5"L x 8.5"W
- Weight: 8 lb
Best for: Versatile blocks for wheels and jacks.
Why it ranks #5: The ten-block set is listed for double wheels and tandem axles, as well as several jack types; its instructions limit stacking to 4 1/2 inches.
Camco’s compatibility list covers single wheels, double wheels, tandem axles, and several jack types, making this 10-pack useful beyond wheel leveling alone. Its quad-grid design and integrated handle add practical support and carrying details to a straightforward stackable-block setup.
Each block measures 8.5 x 8.5 inches, and the quad-grid structure is specified for load-bearing stability. The blocks work with double wheels and tandem axles as well as hydraulic, tongue, stabilizer, and fifth-wheel jacks, giving one pack multiple support roles around an RV. Camco cautions against stacking higher than 4.5 inches, a useful boundary when planning the height. The integrated handle makes carrying and handling the blocks more direct at a campsite.
- Compatible with double wheels and tandem axles
- Works with hydraulic, tongue, stabilizer, and fifth-wheel jacks
- Quad-grid load-bearing design
- Integrated handle
- Stack height should not exceed 4.5 inches.
Skip it if you need a stated capacity of 35,000 pounds for curved ramps; OULEME’s 2 PK RV Leveling Block lists that tire-weight limit.
Camco suits RV owners who want stackable blocks for dual wheels and a range of jack types. Keep its 4.5-inch maximum stacking height in mind when deciding whether the pack provides enough lift for your campsite.
Full product details
| Brand | Camco |
|---|---|
| Color | Yellow |
| Included Components | (1) FasTen Leveling Block 10-pack |
| Item Dimensions L x W | 10.5"L x 8.5"W |
| Item Weight | 8 pounds |
| Manufacturer | Camco |
| Part Number | 21022 |
| Manufacturer Warranty Description | 1 year manufacturer |
| Material | Plastic |
| Model Number | 21022 |
| Operation Mode | Manual |
| Dimensions | 10.5"L x 8.5"W |
| Style | Standard Packaging |
| Style Name | Standard Packaging |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Camco FasTen RV Leveling Blocks – 8.5” x 8.5” x 1”- 10-Pk – Made in the USA
View on Amazon
#6
6. Keltrion Interlocking Blocks
- Dimensions: 17.5 x 8.6 x 6.9 in
- Weight: 6.98 lb
Best for: Adjustable support for dual wheels.
Why it ranks #6: Its stacking layouts are described for single, dual, or all wheels, giving buyers multiple arrangements for wheel and jack leveling.
Multiple stacking layouts, including 6+6 and 3+3+3+3, let Keltrion’s 12 yellow blocks support single, dual, or all wheels. That flexibility also extends to wheel and jack use, making this set relevant to RV owners who want one assortment for different campsite support points.
The listed layouts let you distribute the 12 interlocking blocks in different groupings, including arrangements specifically identified for dual wheels. Keltrion also lists use under RV wheels, trailer jacks, and stabilizer jacks, so the same set can serve more than one support task. Its performance-polymer construction is described as durable for long-term outdoor use. The 17.5 x 8.6 x 6.9-inch product dimensions provide an overall storage reference for planning space in a trailer or tow vehicle.
- 12 interlocking blocks
- 6+6 and 3+3+3+3 stacking layouts
- Listed for single, dual, or all wheels
- Suitable under wheels, trailer jacks, and stabilizer jacks
- The supplied details do not specify a load-capacity figure.
Skip it if you require a stated load limit before choosing blocks; OULEME’s 2 PK curved leveler ramp specifies support for tires weighing up to 35,000 pounds.
Keltrion suits RV owners seeking a 12-piece set that can be rearranged for dual wheels, other wheel layouts, or jack support. Its listed details do not give a load-capacity figure, so that specification may matter to your decision.
Full product details
| Brand | Keltrion |
|---|---|
| Item Weight | 6.98 pounds |
| Item model number | DWH-102-Y12new |
| Manufacturer | Keltrion |
| Part Number | 12 |
| Model | DWH |
| Dimensions | 17.5 x 8.6 x 6.9 inches |
Listed on Amazon as: 12-Pack RV Leveling Blocks, Heavy-Duty Interlocking, Yellow
View on Amazon
#7
7. Kohree Curved Levelers
- Dimensions: 17.32 x 6.69 x 6 in
- Weight: 14.24 lb
Best for: Curved ramps with grip mats.
Why it ranks #7: The curved pair includes two blocks, two non-slip mats, and a bag, and the listing states a 35,000-pound capacity.
A stated 35,000-pound capacity anchors Kohree’s curved levelers, while two non-slip mats and an anti-skid bottom address movement during setup. The kit gives travel-trailer owners a ramp-style alternative to stacking individual leveling blocks, with a carrying bag for transport.
The curved levelers measure 17.32 x 6.69 x 6 inches, providing a defined ramp profile rather than separate stackable squares. Kohree lists support for up to 35,000 pounds and includes two blue blocks and two rubber mats to add friction around the leveling process. The stated installation time is under five minutes, which can simplify campsite setup; the included bag also keeps the levelers and mats together between trips.
- Stated load capacity of up to 35,000 pounds
- Two rubber anti-slip mats included
- Anti-skid design on the leveler bottom
- Carrying bag included
- The two curved levelers provide a fixed ramp format rather than a large stackable block assortment.
Skip it if you want many individual blocks for custom stacks; RVMATE’s 24-pack offers a larger assortment for that approach.
Kohree suits travel-trailer owners who prefer curved levelers, included grip mats, and a stated under-five-minute setup. Consider its two-leveler format if your dual-wheel arrangement needs broader support than a single ramp can provide.
Full product details
| Brand | Kohree |
|---|---|
| Item Weight | 14.24 pounds |
| Item model number | KR1261 |
| Manufacturer | Kohree |
| Part Number | KR1261-KO-US-FBA |
| Model | RV Block |
| Dimensions | 17.32 x 6.69 x 6 inches |
Listed on Amazon as: Kohree RV Leveling Blocks 6 Inch, 2 Packs Sturdy Camper Curved Levelers
View on AmazonWhy it ranks #8: Six wide 17-by-8.5-inch blocks and two top covers suit flexible jack support, but the listing does not specifically identify dual-wheel use.
Six 17-inch-wide interlocking blocks give this OULEME kit its defining advantage: a broad base for supporting scissor jacks and resisting sinking into soft ground. Two smaller top covers complete the eight-piece set, giving RV owners components for a more tailored leveling setup.
The six 17 x 8.5 x 1.5-inch blocks stack together, so you can build up support to suit the campsite rather than rely on one fixed height. Their 17-inch width is specifically noted for scissor-jack stability and soft-ground support. The two 8.5-inch square top covers add separate pieces to the kit, while the included bag provides a way to carry the components together. HDPE construction with anti-UV additives is specified for outdoor durability.
- Six interlocking blocks measure 17 x 8.5 x 1.5 inches
- 17-inch-wide base supports scissor jacks
- Two 8.5 x 8.5 x 0.7-inch top covers included
- HDPE with anti-UV aging additives
- The set has six full-size blocks, fewer than the 24-piece RVMATE pack.
Skip it if you need a curved ramp for driving onto tandem tires; OULEME’s 2 PK curved leveler ramp suits that setup better.
This kit suits RV owners who want wide stacked supports for scissor jacks, particularly on softer ground. Its six full-size blocks and two smaller top covers make the arrangement flexible, but it is not a curved drive-on ramp.
Full product details
| Brand | OULEME |
|---|---|
| Color | Yellow |
| Compatible with Vehicle Type | RV |
| Included Components | bag |
| Manufacturer | OULEME |
| Part Number | OLM-PLB1904P |
| Manufacturer Warranty Description | 1 Year Warranty |
| Material | HDPE |
| Model Number | OLM-PLB1904P |
Listed on Amazon as: OULEME 8PK RV Leveling Blocks, 17.2"x8.5" Stackable Camper Trailer Levelers
View on AmazonWhy it ranks #9: The twelve interlocking blocks stack in a pyramid with each block adding one inch, but the listing does not specify dual-wheel compatibility.
CircleRoad’s interlocking blocks add one inch of height apiece, giving RV owners a simple way to build a pyramid stack to the level their campsite needs. The 12-pack offers individual pieces for a customizable setup rather than a fixed-height curved ramp.
The stated workflow is to stack the blocks into a pyramid, drive onto the stack, and add blocks to increase height by one inch per piece. That repeatable increment makes it easier to plan a desired lift before positioning the RV. CircleRoad describes the materials as sturdy and intended to withstand tremendous weight, but does not provide a specific capacity in the supplied details. The 12-piece format provides multiple blocks for building a customized stack.
- 12-piece pack
- Interlocking blocks stack into a pyramid
- Each added block increases height by one inch
- Customizable stack height
- The supplied specifications do not state a numeric load capacity.
Skip it if you need a stated 35,000-pound limit for a curved ramp; Kohree RV Leveling Blocks 6 Inch lists that capacity and includes non-slip mats.
CircleRoad suits RV owners who prefer pyramid stacks and predictable one-inch height increments over a curved ramp. Its 12-piece count supports custom arrangements, but buyers who require a numeric load limit will not find one in the supplied details.
Full product details
| Brand | CircleRoad |
|---|---|
| Item Weight | 8.82 pounds |
| Item model number | LevelingBlock12-BLU |
| Manufacturer | CircleRoad |
| Part Number | LevelingBlock12-BLU |
| Model | LevelingBlock12-BLU |
| Package Dimensions | 17.63 x 9.13 x 7.05 inches |
Listed on Amazon as: CircleRoad RV Leveling Blocks 12 Pack Camper Trailer Leveling Blocks
View on Amazon
#10 · Largest Block Set
10. RVMATE 24-Pack Blocks
- Weight: 18.66 lb
Best for: Large assortment for custom stacks.
Why it ranks #10: Its 24-piece set offers many interlocking blocks for adjustable setups, but the provided listing does not explicitly address dual wheels.
Twenty-four interlocking pieces make the RVMATE kit the largest stated assortment here, enabling RV owners to build stacks for uneven campsite ground. Standard blocks measure 8.5 inches square, and separate top blocks provide a thinner increment for a more adjustable setup.
Each main block measures 8.5 x 8.5 x 1.5 inches, while each top block measures 8.5 x 8.5 x 0.75 inches. That combination gives you both a standard stacking height and a thinner top piece when refining the level. RVMATE specifies high-density reinforced material and an interlocking design to support stability during leveling. With 24 pieces in the pack, the kit offers more individual components to distribute across a setup than a small set does.
- 24-piece pack
- Interlocking block design
- Main blocks measure 8.5 x 8.5 x 1.5 inches
- Includes thinner 0.75-inch top blocks
- The 24-piece pack weighs 18.66 pounds.
Skip it if you need a compact curved drive-on leveler with mats; Kohree’s RV Leveling Blocks 6 Inch kit includes two mats and a carrying bag.
RVMATE fits RV owners who want a substantial supply of interlocking pieces to build stacks on uneven ground. Its 24-piece assortment and separate thinner top blocks offer flexibility, though carrying the 18.66-pound pack is a consideration.
Full product details
| Brand | RVMATE |
|---|---|
| Item Weight | 18.66 pounds |
| Item model number | RMLV-24-N |
| Manufacturer | RVMATE |
| Part Number | RMLV-24-N |
| Model | RVMATE |
| Package Dimensions | 17.9 x 12.3 x 9.3 inches |
Listed on Amazon as: RVMATE RV Leveling Blocks 24 Pack, Camper Trailer Leveling Blocks
View on AmazonAvoiding dual-tire fit and placement problems
The main dual-wheel trap is assuming that a product labeled for tandem axles will fit every dual-tire spacing. The listings name use cases but do not provide a universal clearance measurement or a fit chart for every tire pair, so measure the available space around your tires and compare it with the leveler dimensions before ordering. Camco FasTen 4×2 Blocks explicitly lists double-wheel use, while CARMTEK Camper Leveler and OULEME Curved Levelers identify dual-axle or tandem-wheel applications.
Those descriptions are useful, but they do not replace checking your RV manufacturer’s leveling instructions. Also distinguish a tandem axle—two axles in a row—from dual tires mounted together on one axle; those terms do not necessarily describe the same wheel geometry.
If clearance is tight, confirm the product’s contact area and intended placement rather than forcing a ramp or block between tires.
Ramp versus stackable blocks: different setup trade-offs
A curved ramp trades modular placement for a drive-on leveling process, while stackable blocks let you build height from separate pieces. CARMTEK Camper Leveler, OULEME Curved Levelers, and OFISPEED Ramp Kit are ramp-style options; their listings describe driving onto a leveler, and the latter two include anti-slip mats. By contrast, Camco FasTen 4×2 Blocks and Camco FasTen 2×2 Blocks interlock into stacks, with the former adding one inch per block and the latter carrying a stated maximum stack height of 4 1/2 inches.
The format can affect campsite setup: ramps may be appealing when you want to drive a wheel onto a continuous incline, while individual blocks offer more arrangement choices and can also be used under listed jacks. Neither format guarantees grip on every surface.
Follow the product instructions, use a firm and suitable placement area, and secure the RV according to its manual.
How to Choose Dual-Wheel RV Leveling Blocks
Fit for your wheel arrangement
Look first for an explicit match to double wheels, dual tires, or tandem axles, then verify the dimensions and fit for your RV. Camco FasTen 4×2 Blocks names dual tires and lists double-wheel and tandem-axle use; CARMTEK Camper Leveler specifies dual-axle trailers, while OULEME Curved Levelers names tandem-wheeled RVs and tires up to 32 inches in diameter. Keltrion Interlocking Blocks describes arrangements for single, dual, or all wheels, but gives no tire-diameter limit in the supplied data.
These terms are not interchangeable guarantees of fit. Buyers with a clearly specified dual-tire setup should start with products that name that use case; those with unusual spacing should verify measurements and instructions before choosing any option.
Ramp or stackable-block format
Choose a ramp if you want to drive onto a curved leveler, or interlocking blocks if you want to assemble a stack. CARMTEK Camper Leveler and OULEME Curved Levelers are ramp-style options; the OULEME listing describes height adjustment from 1/2 to 4 inches. Camco FasTen 4×2 Blocks instead offers ten interlocking pieces, each adding one inch, while Camco FasTen 2×2 Blocks specifies that stacks should not exceed 4 1/2 inches.
Ramp buyers may favor the guided drive-on approach, while block buyers may prefer the ability to vary arrangements and use compatible pieces under listed jacks. Consider your parking routine and the level of adjustment you need; follow each product’s setup and stacking directions.
Capacity and included grip accessories
Compare the stated load information and included grip items, but do not treat a capacity claim as proof of fit for your particular RV. CARMTEK Camper Leveler and Kohree Curved Levelers state capacity up to 35,000 pounds; OULEME Curved Levelers lists tires weighing up to 35,000 pounds, and OFISPEED Ramp Kit states a 35,000-pound load capacity. Their accessories differ: CARMTEK lists wheel chocks, Kohree includes two non-slip mats, and OFISPEED includes two chocks, two mats, a bubble level, and a carry bag.
Camco FasTen 4×2 Blocks instead emphasizes interlocking support and an integrated handle. Buyers who want a ready-to-carry ramp bundle may prefer OFISPEED Ramp Kit; buyers choosing blocks should check the kit contents and use separate chocking procedures as directed by their RV manual.
Which Dual-Wheel Leveler Should You Choose?
For a clearly labeled dual-tire block set, choose Camco FasTen 4×2 Blocks: it specifies double-wheel and tandem-axle use and provides ten stackable blocks. If you prefer a curved ramp for a dual-axle trailer, CARMTEK Camper Leveler is the closest match, with included chocks and a stated anti-slip jointing system. For a tandem-wheeled RV with tires up to 32 inches, consider OULEME Curved Levelers, which includes rubber anti-slip pads.
Choose OFISPEED Ramp Kit if you want a bundle with chocks, mats, a bubble level, and a bag. Buyers seeking blocks for broader wheel or jack arrangements can compare Camco FasTen 2×2 Blocks and Keltrion Interlocking Blocks.
Confirm tire spacing, RV instructions, and the product’s setup limits before deciding.
Related Buying Guides
Frequently Asked Questions
How much clearance should I leave between dual tires when leveling?
Leave enough space to prevent the tires from touching or pressing against each other as the RV settles. There is no single clearance figure established for these products, so check your RV and tire guidance, account for the setup, and confirm the tires remain separated after leveling.
Should I use leveling blocks under both tires on a dual-wheel axle?
Follow your RV’s instructions and the leveling product’s setup limits. The Camco FasTen 4×2 listing specifically confirms use with double wheels and tandem axles; that does not mean every block is suitable for both tires. Check that the chosen arrangement supports the tires as directed and keeps them stable.
How do I keep a leveler from shifting on gravel or soft ground?
Use a firm, reasonably level base and check that the leveler sits securely before driving onto it. On loose or soft ground, a suitable support mat may help distribute contact, but confirm compatibility with the leveler and your RV instructions. Recheck for movement before relying on the setup.
How can I choose between blocks and a curved leveler?
Choose blocks if you want stackable pieces that build to a desired height; Camco FasTen 4×2 includes ten blocks, each adding one inch. A curved leveler is an alternative drive-on style: CARMTEK is listed for dual-axle trailers and includes chocks, while its listing states an anti-slip jointing system.
What should I check before buying a leveler for my RV?
Confirm tire spacing, axle arrangement, your RV’s instructions, and the product’s setup limits. For example, OULEME Curved Levelers are described for tandem-wheeled RVs with tires up to 32 inches. Compare the listed fit to your own setup rather than assuming a leveler works with every wheel arrangement.
Final Words
For a clearly identified dual-tire block option, the Camco FasTen 4×2 is the strongest match in this roundup: its listing confirms double-wheel and tandem-axle use, and its ten blocks stack one inch at a time. Prefer a drive-on ramp? Consider CARMTEK for a dual-axle trailer.
Before choosing, verify tire spacing, axle fit, RV instructions, and setup limits; product titles alone do not establish compatibility.



