Best Fifth Wheel Blocks For Dump Trailer: Compare 10 Options

#1 · Best Overall

1. OULEME Trailer Jack Block

• Load Capacity: 15000 lb
• Material Type: HDPE
• Compatible with Vehicle Type: Trailer, Truck

Best for: Broad jack-foot compatibility.

Why it ranks #1: Its stated 15,000-pound capacity per block is the highest clearly stated jack-support rating here, and it fits round or square feet and several jack types.

Support for jack feet up to nine inches, a two-inch tongue jack post, and a six-by-two-inch tongue jack wheel gives the OULEME block unusually specific compatibility guidance. That range helps buyers assess whether their dump trailer's jack hardware can sit on the block, while its stated 15,000-pound capacity supplies a clear per-block load limit.

At 6.3 inches high, the block offers a defined lift; two stacked blocks reach 11.1 inches, a useful option when one block does not provide the desired height. Its 11.2-by-8.8-inch bottom and 9.3-by-7-inch top give buyers concrete dimensions for checking the support area. Recycled HDPE with anti-UV aging additives is the listed material, and the product also identifies scissor stabilizers among compatible jack types, helping cover more than a single tongue-jack arrangement.

Skip it if you need blocks supplied with a carry bag; the ROBLOCK RBTS578H includes one for its single block.

Choose this for a dump trailer setup where broad jack-foot compatibility and a specified double-stack height matter. Check that its 11.2-by-8.8-inch base fits your support area, and keep its 15,000-pound rating per block in view.

Listed on Amazon as: Heavy Duty Trailer Jack Block, for RV Camper Travel Trailer 5th Wheel, fits Tongue Stand Jack Post/Wheels, Round and Square Stabilizer Foot Plate, Supports up to 15,000 lbs

#2 · Best Surface Stability

2. EKON OX BLOX

• Load Capacity: 10000 lb
• Material Type: Plastic
• Compatible with Vehicle Type: RV, Trailer

Best for: High-capacity mixed-surface support.

Why it ranks #2: Rated at 10,000 pounds per block, it is designed for gravel, grass, dirt, and pavement and lists compatibility with trailers.

A 10,000-pound rating per block is the defining specification of the EKON OX BLOX, giving buyers a substantial support rating for a trailer jack or stabilizer. Its patented design is specifically described for gravel, grass, dirt, and pavement, making it relevant when a dump trailer is parked on varied campsite or worksite surfaces.

The block measures 9.29 by 11.89 by 6.5 inches, so its footprint and height are useful considerations when choosing a support point and planning storage. Its stated compatibility covers round or square tongue, post, foot, scissor, and stabilizer jacks, broadening its use across jack styles. Made from 100% recycled plastic and compression molded, it also offers a material choice tied to rugged use; the listed 8.8-pound weight matters when carrying it between storage and the trailer.

Skip it if you need a supplied carry bag; the ROBLOCK RBTS578H includes one with its single block.

This suits buyers who want one high-capacity block for a dump trailer jack and may park on gravel, grass, dirt, or pavement. Its 6.5-inch height and 9.29-by-11.89-inch dimensions should suit the available support and storage space.

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

#3 · Tallest Listed Block

3. Florety Trailer Jack Block

• Load Capacity: 10000 lb
• Material Type: Polypropylene
• Compatible with Vehicle Type: RV

Best for: Two tall broad-base blocks.

Why it ranks #3: Its 8-inch height exceeds the 6- to 6.3-inch blocks listed by several competitors, while its stated capacity is 10,000 pounds.

Two eight-inch blocks with 12.5-inch-square dimensions give the Florety set a taller profile than the six-inch options, with a broad base stated to help reduce wobble. Each block is rated for 10,000 pounds, making it a specific choice for dump trailer owners who want two tall jack supports.

The product lists compatibility with round, square, and other jack types, while its top is described as large enough to support an entire leveling-jack foot. That combination can simplify matching a support surface to different trailer jack shapes. Polypropylene is the specified material, and the 12.5-inch-square footprint gives buyers a clear size to plan around. The two-block package supplies a pair of supports, but its stated 10,000-pound rating applies to each block, not automatically to every load arrangement.

Skip it if you need four six-inch blocks in one set; the HOXWELL NBTS578H-4 is listed as a four-piece package.

This suits dump trailer owners who want two tall supports with a broad footprint and compatibility across jack shapes. Its eight-inch height, 12.5-inch-square size, and two-block count should match the available storage and setup.

Listed on Amazon as: Trailer Jack Block 2 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

#4 · Four-Block Set

4. Ryansunoro Trailer Jack Block

• Load Capacity: 10000 lb
• Material Type: Polymer
• Compatible with Vehicle Type: RV

Best for: Four-pack with stated set capacity.

Why it ranks #4: The four-block set states 10,000 pounds per block and gives 6-inch height and 11.5-inch length and width.

The Ryansunoro package states that each of its four six-inch blocks supports 10,000 pounds and that the set supports up to 40,000 pounds when evenly distributed. That explicit distinction helps dump trailer buyers understand the listed per-block and set ratings before planning support across multiple points.

Each block measures 6 inches high by 11.5 inches long and wide, giving buyers specific dimensions for checking the jack support area and storage. Industrial-grade polymer with UV-stabilized additives is listed, alongside a non-slip, non-sinking base and textured top surface. The product says it fits most RV jack systems, including fifth wheels and landing gear legs, and advises checking jack-foot diameter before ordering. The four-piece count supports multiple contact points, subject to the stated even-load condition for set capacity.

Skip it if you need an eight-inch block height; the Florety R01V blocks are listed at eight inches.

This is suited to a buyer seeking four six-inch supports with clearly stated per-block and evenly distributed set capacities. Check jack-foot diameter as the listing advises, and account for the even-load condition when planning support.

Listed on Amazon as: RV Trailer Jack Block, 6 Inch, 4 Pack, Stabilizer Jack Pads

#5

5. KJE Trailer Jack Block

• Load Capacity: 40000 lb
• Material Type: PP
• Compatible with Vehicle Type: RV, Trailer, motorhome

Best for: Four-block UV-resistant set.

Why it ranks #5: This four-block set is described as 6 inches high and suitable for fifth-wheel support; its listed 40,000-pound capacity is not clearly stated per block.

Four six-inch-high blocks and a supplied bag make the KJE set a ready-to-carry group of support pads for dump trailer owners planning several jack contact points. The listing specifies industrial-grade polypropylene with anti-UV additives, connecting the material choice to outdoor use and resistance to sun exposure, dirt, grime, and oil.

The stated 40,000-pound capacity is paired with a four-block package, while the product description says the blocks suit fifth wheels, travel trailers, posts, feet, and round or square tongue jacks. That compatibility can help buyers consider the set across more than one jack style. A drainage hole is described as shedding water and mud, which can limit accumulation around the block during outdoor use. The supplied bag gives the four-block set a dedicated carrying option.

Skip it if you need an individually stated 10,000-pound rating for each block; the RVMATE RMLV1013-4 lists that per-block capacity.

This set fits a buyer who wants four six-inch supports and a bag for dump trailer setup and storage. Review the stated capacity and jack-style compatibility against the particular arrangement you plan to support.

Listed on Amazon as: KJE 4PCS RV Trailer Jack Block with Bag, 6" High RV Leveling Block, Trailer Blocks Suit for Any 5th Wheels Support Travel Trailer, Post, Foot, Round Square Tongue Jack, Camper Stabilizer Blocks

#6

6. RVMATE Trailer Jack Blocks

• Load Capacity: 10000 lb
• Compatible with Vehicle Type: RV

Best for: Stackable jack-block lift.

Why it ranks #6: Each block is stated to support 10,000 pounds and provide 5.9 inches of lift, with a stackable design for buyers needing more height.

Each RVMATE block provides 5.9 inches of lift and can be stacked to add another three inches, giving dump trailer owners a specified way to adjust support height. Its 10,000-pound rating per block and UV-resistant polymer make the height-adjustable, outdoor-support combination the central buying consideration.

The listing says the blocks shorten necessary jack travel, curb trailer sway, and reduce jack wear, connecting their support role to setup and use. A single block's 5.9-inch lift supplies a clear starting point, while the stated extra three inches from stacking allows incremental height adjustment. Each block is rated for 10,000 pounds, with compatibility listed for RVs and trailers rated up to 40,000 pounds GVW. A bag is included, supporting storage and transport.

Skip it if you need a stated 15,000-pound capacity per block; the OULEME GT25H has that listed rating.

This fits a buyer who wants stackable support height and a bag for dump trailer block storage. Account for the stated 5.9-inch lift and three-inch stack addition when deciding whether it reaches the needed support height.

Listed on Amazon as: 6”H Trailer Jack Blocks with Bag, RV Leveling Blocks

#7

7. HOXWELL Trailer Jack Blocks

• Load Capacity: 10000 lb
• Material Type: Plastic
• Compatible with Vehicle Type: RV

Best for: Four-piece scissor-jack support.

Why it ranks #7: The four-piece set fits several jack styles and lists a 10,000-pound capacity, but its description also gives a conflicting 40,000-pound GVW figure.

The HOXWELL set supplies four six-inch blocks and lists compatibility with tongue jack feet, wheel jacks, nine-inch round fifth-wheel hydraulic feet, and scissor stabilizers. That broad jack coverage helps dump trailer owners match the blocks to varied support hardware, while its polymer construction and anti-UV additives address outdoor handling and exposure.

Each block measures 11.6 inches square and six inches high, providing dimensions to compare with the trailer's support area and available storage. The listing specifies a 10,000-pound load capacity, while the feature text separately cites 40,000-pound GVW per block; those are different descriptions, so buyers should not treat them as interchangeable without clarification. Anti-UV additives and stated resistance to dirt, grime, and oil support the outdoor-use case, and four pieces provide multiple pads in one set.

Skip it if you want a single, consistent stated capacity; the OULEME GT25H lists 15,000 pounds per block.

This suits a buyer seeking four blocks for varied dump trailer jack styles, including scissor stabilizers. The listing's two different capacity statements are a material boundary to resolve before relying on a load figure.

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

#8

8. ROBLOCK Trailer Jack Block

• Load Capacity: 4E+4 GVW
• Material Type: Plastic
• Compatible with Vehicle Type: RV, Trailer

Best for: Single block with carry bag.

Why it ranks #8: It includes a bag and fits multiple jack styles, but its stated 40,000-pound figure is GVW per block rather than a clearly defined jack-support rating.

The ROBLOCK package pairs one six-inch-high jack block with a bag, giving dump trailer owners a defined lift and a supplied way to carry the block. Its stated 40,000-pound GVW rating per block and compatibility with tongue jacks, wheel jacks, round hydraulic feet, and scissor stabilizers distinguish its broad-use support claim.

The 11.6-inch-square footprint and six-inch height provide concrete dimensions for planning where the block will sit and how it will fit in storage. High-performance polymer with anti-UV aging additives is specified to resist dirt, grime, and oil, a useful material detail for blocks handled around trailers and outdoor parking areas. The listing identifies compatibility with a nine-inch round fifth-wheel hydraulic jack foot, as well as scissor stabilizers, while the included bag supports transport of the single block.

Skip it if you need four blocks in one package; the HOXWELL NBTS578H-4 is listed as a four-piece set.

This is a practical match for a buyer seeking one portable support block for a dump trailer jack, with a bag included. Its six-inch height and single-block package are the key boundaries when planning support points.

Listed on Amazon as: 6''H 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, 1 Pack

#9 · Magnetic Positioning

9. Andersen Magnetic Jack Block

• Load Capacity: 8000 lb
• Material Type: Plastic
• Compatible with Vehicle Type: Motorcycle, RV, Trailer

Best for: Magnetic round-pad positioning.

Why it ranks #9: Its magnet helps position the block under a round jack pad, but its 8,000-pound single-stack capacity is lower than several other listed ratings.

A built-in magnet on top is the Andersen block's defining feature: it attaches directly to a round trailer jack pad to help keep the block positioned while the jack is lowered. That positioning detail makes it a targeted choice for dump trailer owners using a round pad who want support placement to stay put during setup.

The eight-inch height and 12-inch base provide a tall support profile with a broad stated footprint, useful details when assessing ground clearance and storage. Andersen rates the block for 8,000 pounds single stacked, but lists 1,500 pounds double stacked, so buyers should treat stacking as a distinctly lower-rated configuration rather than assume the single-block capacity applies. Its plastic construction and stated stabilizer- and leveling-jack use make the block relevant beyond a single jack setup.

Skip it if you need a higher stated single-block rating; the OULEME GT25H is rated for 15,000 pounds per block.

Consider this for a dump trailer with a round jack pad where magnetic positioning and an eight-inch profile suit the setup. Its 8,000-pound single-stack rating and much lower double-stack rating are important boundaries.

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

#10

10. LEIDGG RV Leveling Blocks

• Load Capacity: 35000 lb
• Material Type: Polypropylene (PP)

Best for: Ramp-style leveling kit.

Why it ranks #10: This ramp-and-chock leveling set is less directly suited to supporting a trailer jack than the dedicated jack blocks; it lists a 35,000-pound capacity.

Two curved leveler ramps, two chocks, two rubber mats, and integrated handles make this LEIDGG kit a distinct option for buyers who want a ramp-based leveling workflow rather than only separate jack blocks. Its stated 35,000-pound capacity and inclusion of fifth wheels among compatible vehicles make it relevant to larger trailer setups.

The listed operation starts by placing a non-slip mat, adjusting the camper on the leveler to the desired height, and securing it with a chock. That sequence gives buyers a clear setup workflow, while the integrated handles support carrying, placement, and removal. High-strength polypropylene is the stated construction, and the 13.2-by-6.1-by-4.3-inch dimensions help with storage planning. The package includes a carry bag, so the ramps, mats, and chocks have a listed transport accessory.

Skip it if you need a six-inch jack block rather than ramps; the RVMATE RMLV1013-4 is a stackable jack-block option.

Choose this for a dump trailer owner who wants a ramp, mat, and chock leveling workflow with handles for placement. Its listed components and 4.3-inch height define a different setup than a six-inch jack block.

Listed on Amazon as: RV Leveling Blocks with Handles 35000 LBS Load Capacity