Best RV Jack Blocks for Trailers, Campers, and Fifth Wheels

#1 · Best Overall

1. EKON OX BLOX

• Dimensions: 9.29 x 11.89 x 6.5 in
• Weight: 8.8 lb
• Load Capacity: 10000 lb
• Material: Plastic

Best for: High-capacity jack support.

Why it ranks #1: Each block is rated for 10,000 pounds and fits tongue, post, foot, scissor, and stabilizer jacks; its listed use includes several ground surfaces.

A 10,000-pound-per-block rating gives the EKON OX BLOX a clear role supporting trailer jacks and stabilizers under substantial loads. Its patented design is specified for gravel, grass, dirt, and pavement, making it a practical option for RV owners who park on varied campground surfaces.

The block accommodates tongue, post, foot, and scissor jacks, as well as stabilizer jacks with round or square feet, so one support can serve different trailer setups. Its 9.29-by-11.89-inch footprint and 6.5-inch height provide a substantial base beneath the jack, while the surface-stability claim covers common campsite ground. Made from recycled plastic using compression molding, it also avoids the upkeep associated with wood blocks; the 8.8-pound weight is worth considering when packing.

Skip it if you need a multi-block leveling kit in one purchase; the VEVOR CXFC02 includes four blocks.

Choose the OX BLOX if you need a high-capacity support for varied jack styles and campsite surfaces. Its single-block listing suits buyers selecting supports individually, rather than shoppers seeking a complete multi-block leveling set.

Listed on Amazon as: OX BLOX Heavy Duty Trailer Jack Block – 10,000 lb Capacity – Made in USA

#2 · Highest Rated Capacity

2. OULEME 15,000-lb 4-Pack

• Dimensions: 8.86 x 8.86 x 5 in
• Weight: 3.68 kg
• Load Capacity: 15000 lb
• Material: pp

Best for: High-rated versatile jack support.

Why it ranks #2: Each of four blocks is rated for 15,000 pounds, with compatibility listed for round and square feet, tongue jacks, wheels, and scissor stabilizers.

A 15,000-pound capacity per block sets the OULEME GT-25H3 apart for buyers needing substantial jack support. Its listed compatibility covers square and round feet, tongue-jack posts and wheels, and scissor stabilizers, so one block style can serve varied trailer hardware.

The block measures 4.85 inches high, with a 10-inch-square bottom and an 8.5-inch-square top, providing a tapered support profile for compatible jack feet. The listing says two blocks double-stack to 8.2 inches, giving some added height flexibility, while each block is rated for up to 15,000 pounds. High-density polypropylene is described as crush-proof and deformation-resistant. No components are listed as included, so buyers should account for that when planning a multi-point setup.

Skip it if you want four blocks included; the ROBLOCK RBTS578H-4 listing specifies a four-piece set.

Choose the GT-25H3 if high per-block capacity and compatibility across jack styles matter. Its 4.85-inch single-block height and unspecified included quantity are important considerations when planning the support points for your trailer.

Listed on Amazon as: OULEME Trailer Jack Block, 15,000 lbs Leveling Block for RV Camper Travel Trailer 5th Wheel, Fits 8.5” Pad, Tongue Stand/Round Square Scissor Stabilizer Jack and Wheels, 4 Pack

#3 · Magnetic Positioning

3. Andersen 3608

• Dimensions: 12.28 x 12.28 x 8.7 in
• Weight: 4 lb
• Load Capacity: 8000 lb
• Material: Plastic

Best for: Magnetic round-pad positioning.

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Why it ranks #3: The built-in magnet holds the block to a round jack pad during lowering; its stated capacity is 8,000 pounds single stacked.

A built-in magnet holds the Andersen Hitches block against a trailer’s round jack pad as the jack lowers, helping keep the block positioned during setup. Its eight-inch height and wide 12-inch base suit buyers seeking a tall, single support with a positioning aid.

The magnet is specifically intended to attach to a round jack pad and prevent shifting while lowering the jack, simplifying placement for that setup. The block is rated for 8,000 pounds when single stacked and 1,500 pounds when double stacked, so the stacking choice substantially changes its listed capacity. An eight-inch profile and 12-inch base provide a broad footprint, while its four-pound weight is convenient to handle. This is a one-pack product, so it is not a multi-block kit.

Skip it if you need multiple supports in one set; the VEVOR CXFC02 includes four blocks.

This Andersen block suits buyers whose round jack pad benefits from magnetic positioning and who want a tall single support. Check the distinct single- and double-stack capacity figures when deciding how to use it.

Listed on Amazon as: ANDERSEN HITCHES | RV Travel Accessories | 1-Pack Trailer Jack Block w/ Magnets | Quick Leveling Stabilizers for Trailers Jackstand Level Quickjack Heavy Duty Utility Blocks | 3608

#4 · Tall Four-Pack

4. Florety 4-Pack

• Dimensions: 12.5 x 12.5 x 8 in
• Load Capacity: 10000 lb
• Material: Polypropylene

Best for: Tall high-capacity four-pack.

Why it ranks #4: Four 8-inch-high blocks are each rated for 10,000 pounds and have a large top stated to support an entire leveling-jack foot.

Eight-inch height and a 10,000-pound-per-block rating give the Florety four-pack a defined role for substantial RV jack support. Its large top is described as wide enough for an entire camper leveling-jack foot, while the round base is intended to reduce wobble.

The set’s four blocks pair a broad 12.5-inch-square footprint with an eight-inch height, offering a tall support profile for travel trailers, fifth wheels, campers, and utility trailers. The multi-functional top is listed for round, square, and other jack types, and its size can accommodate an entire leveling-jack foot. Polypropylene construction and the 10,000-pound-per-block rating are relevant for buyers prioritizing capacity. The listing also notes side notches near the top, but gives no detailed storage or stacking instructions.

Skip it if you need a lower-profile support; the OULEME GT-25H3 is listed at 4.85 inches high.

Florety fits buyers wanting four tall supports with a stated 10,000-pound capacity per block and a large jack-foot surface. Its eight-inch height makes it less suitable when a shorter support profile is the priority.

Listed on Amazon as: Trailer Jack Block 4 Pack, Heavy Duty RV Jack Blocks-8''Height 10,000 lbs Capacity,Leveling Jack Pads for 5th Wheel, Travel Trailer, Camper, Tongue Jack, Stabilizer Jack Foot

#5

5. ROBLOCK 4-Pack

• Dimensions: 11.6 x 11.6 x 6 in
• Weight: 7.37 kg
• Load Capacity: 4E+4 lb
• Material: Plastic

Best for: Multi-jack four-block support.

Why it ranks #5: The four-piece set includes a carrying bag and is listed for tongue, wheel, fifth-wheel, and scissor-stabilizer jacks; its stated GVW figure is 40,000 pounds per block.

A 40,000-pound-per-block rating and four included blocks give the ROBLOCK set a substantial support profile for RV and trailer setups. Its stated compatibility spans tongue, wheel, fifth-wheel hydraulic, and scissor-stabilizer jacks, while the six-inch height offers a fixed-height support option.

The high-performance polymer includes anti-UV aging additives, which the listing says help resist dirt, grime, and oil during rugged use. Four blocks and a bag come together, making it easier to keep the supports organized between trips. At 11.6 by 11.6 by 6 inches, each block has a defined footprint and height rather than a stack-to-adjust format. Compatibility with several jack types makes the set flexible across setups, but buyers should note the fixed six-inch height when planning support.

Skip it if you want height adjustment by stacking; the VEVOR CXFC02 blocks are stackable.

Consider ROBLOCK if your setup uses several jack styles and you want four supports with a storage bag. The six-inch height is the key boundary: choose a stackable system when variable support height is important.

Listed on Amazon as: ROBLOCK 6''H 4 PCS Trailer Jack Block with Bag, RV Camper Stabilizer Blocks for Travel Trailer, Suit for Any Tongue Jack, Post, Foot, 5th Wheels, Round Square or Scissor Stabilizer

#6

6. HOXWELL Handle Block

• Dimensions: 11.8 x 11.8 x 7.8 in
• Weight: 1.66 kg
• Load Capacity: 4E+4 lb
• Material: Plastic

Best for: Handled portable single block.

Why it ranks #6: This single 8-inch-high block has a handle and fits several jack styles; the listing states a 40,000-pound GVW figure, not a comparable per-block rating.

An integrated handle makes the HOXWELL block easier to carry and position, while its eight-inch height provides a tall support point for an RV or trailer jack. Reinforced internal structure and a stated 40,000-pound capacity are aimed at substantial parked-vehicle support.

The listing describes compatibility with tongue jacks, posts, feet, and round, square, or scissor stabilizers, giving the single block broad utility across jack styles. Its 11.8-inch-square dimensions and eight-inch height establish a substantial footprint and fixed support height. A built-in weep hole is also listed, and the handle supports carrying and positioning. The stated capacity is 40,000 pounds, though the listing does not clarify a per-block versus whole-vehicle basis, so interpret that figure cautiously.

Skip it if you need an explicitly stated per-block capacity; the OX BLOX EKJS lists 10,000 pounds per block.

HOXWELL suits buyers who value a handle, tall fixed height, and compatibility with several jack styles in one block. Its capacity wording lacks a per-block clarification, so seek clearer rating details if that distinction is essential.

Listed on Amazon as: HOXWELL 8''High RV Trailer Jack Block with Handle, RV Stabilizer Blocks for Any Tongue Jack, Post, Foot, Round Square or Scissor Stabilizer, Stackable & Portable, 1 Pack, Orange

#7

7. VEVOR 4-Pack

• Dimensions: 9.65 x 9.65 x 8.03 in
• Weight: 20.4 lb
• Load Capacity: 6000 lb
• Material: Polypropylene T30

Best for: Four-block leveling setup.

Why it ranks #7: Four polypropylene blocks are rated at 6,000 pounds each and can be stacked to adjust height, making the set useful for multiple jack positions.

Four blocks in one set make the VEVOR CXFC02 useful when your RV setup needs several support points at once. Each polypropylene block is rated for 6,000 pounds, and the stackable design lets campers adjust support height on uneven ground without a complex installation.

The set includes four blocks and an instruction, giving buyers multiple supports for a trailer rather than a single pad. Stacking the blocks adjusts height, which can help address uneven campground terrain; the listing describes positioning them in minutes without complex installation. Polypropylene T30 construction and a stated 6,000-pound capacity per block provide the core support specifications. At 20.4 pounds for the set, this option makes sense when a multi-block kit matters more than minimizing packed weight.

Skip it if you prioritize a lighter single jack pad; the Andersen Hitches 3608 weighs 4 pounds.

Pick this VEVOR set if you want four stackable supports for adjusting an RV on uneven ground. Its 6,000-pound rating is per block, and the 20.4-pound set weight is a relevant trade-off for travel storage.

Listed on Amazon as: VEVOR Trailer Jack Block, 6000 lbs Capacity per RV Leveling Block, Polypropylene RV Camper Stabilizer Blocks, RV Travel Accessories Use for Any Tongue Jack, Post, Foot, 5th Wheels, 4-Pack

#8

8. Tlaleikejia 4-Pack

• Dimensions: 1 x 1 x 1 in
• Weight: 16 oz
• Load Capacity: 24000 lb
• Material: Heavy-duty Plastic

Best for: Four stackable polypropylene blocks.

Why it ranks #8: This four-pack uses polypropylene T30 and is listed at 6,000 pounds per block, though the specifications also show a 24,000-pound set capacity.

A four-block set with stackable construction gives the Tlaleikejia kit a practical format for adjusting trailer support on uneven ground. Each block is listed at 6,000 pounds capacity and made from polypropylene T30, combining a defined load rating with a material specified for camping conditions.

The set contains four blocks, and the stackable design lets users build support height from the included pieces rather than relying on one fixed-height pad. The listed capacity is 6,000 pounds per block, with a 24,000-pound total also shown in the specifications; those figures describe different bases and should not be conflated. Polypropylene T30 construction is presented as suitable for varied camping conditions. The product title identifies RV and camper trailer use, while the specifications list trailer compatibility.

Skip it if you want height-adjustable leveling blocks with top caps and a bag; RVMATE RMLV-12 includes both.

This set fits trailer owners seeking four stackable supports with a stated 6,000-pound capacity per block. Review the per-block rating separately from the listed set total when determining whether it suits your leveling setup.

Listed on Amazon as: Trailer Jack Block, RV Leveling Blocks, 6000 lbs Capacity, Set of 4, Polypropylene RV Camper Stabilizer Blocks, Stackable Leveling Support for Camper Trailer

#9

9. OULEME 12-Pack

• Weight: 9.99 lb

Best for: Custom-height leveling stacks.

Why it ranks #9: The set has ten interlocking blocks and two top blocks for adjustable stacking, but its listing provides no stated load capacity or jack-foot compatibility details.

Ten one-inch interlocking blocks let the OULEME 12-pack build support height in small increments, while two top blocks finish the stacks. That adjustable layout suits campers who want to tailor leveling height rather than rely on one fixed-height trailer jack block.

The pack contains 10 interlocking blocks and two top blocks, with each leveling block listed as one inch tall, so users can customize stack height to their needs. Individual blocks measure 8.5 by 8.5 inches, and the top blocks measure 8.5 by 8.5 inches with a 0.7-inch height. Polypropylene with anti-UV aging additives supports outdoor use, while the included carrying bag helps keep the 12 pieces together in transit. The listing provides no load-capacity figure.

Skip it if you require a stated per-block capacity; the OULEME GT-25H3 lists 15,000 pounds per block.

This pack fits RV owners who want incremental height adjustment and a bag for keeping a dozen pieces organized. Consider another option if a published load rating is essential, since none is provided in the supplied product details.

Listed on Amazon as: OULEME 12 Pack RV Leveling Blocks, Stackable Jack Blocks, Interlocking Leveling Pads with Carrying Bag, for Camper Travel Trailer

#10

10. RVMATE 12-Pack

• Weight: 9.48 lb

Best for: Bagged twelve-piece leveling kit.

Why it ranks #10: This stackable set includes two top caps and a carrying bag, but the supplied specifications give no load capacity or detailed jack-type compatibility.

Twelve stackable pieces, including two top caps, give the RVMATE set flexibility for adjusting support height under an RV or trailer. Its 8.5-inch-square blocks are paired with a carrying bag, making the kit useful for campers who want both adaptable stacks and organized storage.

Each leveling block measures 8.5 by 8.5 by 1.5 inches, while each top block measures 8.5 by 8.5 by 0.75 inches; stacking lets users adjust the setup to their needs. The two top caps add stability in use, according to the supplied facts. HDPE construction is described as UV-resistant and waterproof for outdoor use. A carrying bag helps keep the pieces together during RV travel, though the listing does not provide a load-capacity figure.

Skip it if you need a published capacity for each block; the OULEME GT-25H3 lists a 15,000-pound rating.

Choose RVMATE if adjustable stacks, top caps, and a carrying bag matter for your RV trips. Its outdoor material details are useful, but buyers who require a stated load rating should select a product with one listed.

Listed on Amazon as: RVMATE 12 Pack RV Leveling Blocks, Camper Trailer Leveling Blocks