Best Jacks For RV Slide Outs: Compare 10 Support Sets

#1 · Best Overall

1. Kohree RV Slide Out Supports 4PCS

• Load Capacity: 20000 lb
• Material Type: Stainless Steel
• Weight: 18.7 lb
• Dimensions: 21.45 x 9.25 x 5.31 in

Best for: Four-point heavy-slide support.

Why it ranks #1: Four supports, a flat top that needs no extra block, and a listed 20,000-pound capacity make this the strongest documented four-piece setup.

Four supports and a claimed reduction in shake of up to 70% make the Kohree set a fit for owners seeking more points beneath a heavy slide-out. Its flat top blocks provide a sturdy contact surface without adding wood or other blocks, simplifying placement at camp.

Kohree lists a 20,000-pound load capacity and four supports, pairing substantial stated capacity with more contact points than a basic two-jack setup. The company says the arrangement can reduce shake by up to 70% for heavy slide-outs; that is a product claim rather than a universal result. Flat top blocks remove the need for extra wood blocks, streamlining placement. Stainless-steel construction and the 18.7-pound listed set weight round out the handling and material details.

Skip it if you need a stated height range or drill-assisted setup; Kohree KR1232-KO-US-FBA lists drill-socket operation and included adjustment accessories.

Choose this Kohree set if four-point support, flat contact tops, and a stated 20,000-pound capacity match your slide-out needs. The listing does not specify adjustment height, so it is a less clear choice when a particular ground-to-contact range is essential.

Listed on Amazon as: Kohree RV Slide Out Support Jacks with Flat Top, 4PCS

#2 · Wide Height Range

2. Garvee RV Slide Out Supports

• Load Capacity: 10000 lb
• Material Type: Alloy Steel
• Weight: 41.2 lb
• Dimensions: 24.61 x 10.04 x 12.6 in

Best for: Wide-range four-jack coverage.

Why it ranks #2: Its 21–49-inch adjustment suits varied installation heights, and the set includes four jacks; the specifications list 10,000-pound load capacity.

A four-jack set with telescoping adjustment from 21 to 49 inches gives RV owners a broad height range for supporting slide-outs. Garvee lists drill and hand-crank operation, so setup can use powered adjustment or a manual option, while the flat top block provides a direct support surface.

The 21–49-inch quick-lift range accommodates varied support heights, and the drill-compatible mechanism offers a powered alternative to the hand crank when positioning the jacks. Garvee specifies a flat top support block, eliminating the need to add a separate block for contact. The package includes four supports, providing more points beneath a slide-out than a two-jack set. The listing states up to 20,000 pounds of support, while specifications list a 10,000-pound load capacity.

Skip it if you want a lighter two-jack kit; Kohree KR1232-KO-US-FBA weighs 18.3 pounds and includes drill and hand-crank accessories.

Garvee suits RV owners who want four adjustable supports and both drill and hand-crank operation for a slide-out setup. Its 21–49-inch range is useful across varied heights, but account for the 41.2-pound set when handling and storing it.

Listed on Amazon as: Garvee 4 Pack RV Slide Out Supports Jack with a Flat Top Support Block, RV Stabilizer Jacks Supports Up to 20,000lbs, 21"-49" Quick-Lift Adjustable – Drill & Hand Crank Compatible for Campers & RVs

#3 · Higher-Capacity Pair

3. RVshark RS1232 Supports

• Load Capacity: 6000lbs lb
• Material Type: Alloy Steel

Best for: Higher-capacity two-jack pair.

Why it ranks #3: This two-jack set lists 6,000-pound capacity and offers power and manual operation, exceeding the 5,000-pound ratings of many two-piece alternatives.

A 6,000-pound capacity gives this RVshark pair a higher stated rating than the 5,000-pound limit cited for standard support jacks in its listing. High-strength alloy steel and reinforced galvanized tubes are specified, providing the construction details behind this two-jack slide-out support option.

RVshark lists 6,000 pounds of capacity for the set’s support jacks and describes each as providing an extra 1,000-pound margin over the stated 5,000-pound standard. High-strength alloy steel and reinforced galvanized tubes are intended to support stability and resist slide-room sagging or sway. The listing also identifies dual power and manual lifting modes, giving buyers operating flexibility. It specifies a 20–24V cordless drill for powered use, but does not provide an adjustment-height range here.

Skip it if you require a stated height range before choosing; BOYISEN BORVJE01 lists adjustment from 20 to 49 inches and drill or crank operation.

Consider RVshark RS1232 if a 6,000-pound listed capacity and power-or-manual operation are priorities for your slide-out supports. The supplied details do not give a height range, so verify that the setup can reach your intended support point.

Listed on Amazon as: RV Slide Out Support Jacks, Set of 2, 6000lbs Supports Jack,Black

#4

4. RVshark RS1231 Supports

• Load Capacity: 6000 lb
• Material Type: Alloy Steel

Best for: Silver 6,000-pound pair.

Why it ranks #4: The two-jack set lists 6,000-pound capacity and alloy-steel construction, making it a higher-capacity pair among the options with stated ratings.

The silver RVshark RS1231 pair combines a listed 6,000-pound capacity with high-strength alloy steel and reinforced galvanized tubes. Its listing identifies power and manual lifting modes, giving slide-out owners operating options alongside a higher stated capacity than the 5,000-pound standard it cites.

The 6,000-pound rating is presented as an extra 1,000-pound support margin over the listing’s cited 5,000-pound standard. RVshark attributes stability and help preventing sagging or sway to high-strength alloy steel and reinforced galvanized tubes. Dual lifting modes provide a power option with a 20–24V cordless drill and a manual alternative, though the supplied details do not name the manual mechanism. This is a two-support set, and no adjustment-height range is provided.

Skip it if you need a listed height range for placement; BOYISEN BORVJ01 specifies 19–47 inches for its two support jacks.

RS1231 fits buyers seeking a two-jack set with a 6,000-pound stated capacity and power or manual operation. Its silver finish distinguishes this listing, but the missing height range means it offers less guidance for a specific support-point measurement.

Listed on Amazon as: RV Slide Out Support Jacks Set of 2, 6000lbs Heavy Duty Supports

#5 · Drill-Ready Pair

5. BOYISEN BORVJE01 Supports

• Load Capacity: 5000 lb
• Material Type: Alloy Steel
• Weight: 18.8 lb
• Dimensions: 21.5 x 9.3 x 5.3 in

Best for: Drill-or-crank height adjustment.

Why it ranks #5: This two-jack set adjusts from 20 to 49 inches and supports drill or hand-crank operation, combining a broad height range with convenient adjustment.

Adjustment from 20 to 49 inches gives the BOYISEN pair broad reach for slide-out support, with either an electric drill or the provided hand crank available to change height. That dual operation lets owners choose powered or manual adjustment when placing the two jacks.

The product combines thread adjustment with hole-position adjustment to cover its stated 20–49-inch height range, giving buyers two ways to set the support height. A drill can raise or lower the threaded section, while the included hand crank provides manual operation. The pair has a listed 5,000-pound capacity and alloy-steel construction. BOYISEN notes that holding the U-shape top by hand can improve thread adjustment, a useful handling detail during setup.

Skip it if you prioritize a higher listed capacity over a broader stated height range; RVshark RS1231 lists 6,000 pounds per support.

This BOYISEN pair suits owners who need 20–49-inch adjustment and want both drill and hand-crank operation. Its listed capacity is 5,000 pounds, so check that figure against the support requirement for your particular slide-out.

Listed on Amazon as: BOYISEN RV Slide Out Support Jacks, 20-49 in Adjustable, 5000 lb Capacity

#6

6. Kohree RV Slide Out Supports 2-Pack

• Load Capacity: 5000 lb
• Material Type: Stainless Steel
• Weight: 18.3 lb
• Dimensions: 21.45 x 9.25 x 5.31 in

Best for: Two-jack drill-ready setup.

Why it ranks #6: A flat top avoids the need for an extra block, and the set includes a drill socket and hand crank; listed capacity is 5,000 pounds.

A supplied drill socket lets this two-jack Kohree set raise or lower its supports with a power drill, offering a faster alternative to turning a traditional hand crank. It also includes a crank handle, while the flat top blocks provide direct support without extra wood blocks.

The two included jacks have a listed 5,000-pound load capacity, making the set a compact option for buyers who want a pair rather than four supports. For setup, the supplied drill socket enables powered adjustment and the included crank handle provides a manual alternative. Flat top blocks avoid the need to place separate wood blocks at the contact point. Stainless-steel construction and compatibility listings for campers, motorhomes, RVs, and trailers broaden its stated vehicle fit.

Skip it if you want four supports and a higher listed capacity; Kohree KR1234-KO-US-FBA is a four-piece set with a 20,000-pound capacity.

This set fits RV, camper, motorhome, and trailer owners who want two supports and a choice of drill or hand-crank adjustment. Its listed 5,000-pound capacity makes it important to check the support requirement for your slide-out.

Listed on Amazon as: Kohree RV Slide Out Supports Jack, with Flat Top Support Block, Set of 2

#7

7. FAHKNS RV Slide Out Jacks

• Load Capacity: 5000 lb
• Material Type: Alloy Steel
• Weight: 8.73 kg

Best for: Thick-tubing adjustable supports.

Why it ranks #7: The two-piece set offers 20–48-inch adjustment, a listed 5,000-pound capacity, and electric-drill or manual operation.

Three-millimeter steel tubing is the specified structural feature on this FAHKNS pair, which adjusts from 20 to 48 inches for slide-out support. The listing says the tubing adds strength, stability, and resistance to deformation, while drill and manual operation provide two ways to adjust height.

The 20–48-inch adjustment range gives owners a stated span for matching the jacks to a slide-out support point. FAHKNS specifies 3mm-thick alloy-steel tubing and links it to structural strength and resistance to deformation. Electric-drill operation can speed adjustment, while the included manual option provides an alternative without a drill. The pair has a listed 5,000-pound capacity and is compatible with RVs, trailers, and trucks, according to the supplied specifications.

Skip it if you need a higher listed capacity; RVshark RS1231 specifies 6,000 pounds for its pair of slide-out supports.

FAHKNS suits RV and trailer owners who want a 20–48-inch range, thick steel tubing, and both drill and manual adjustment. Its listed capacity is 5,000 pounds, so match that limit to the intended slide-out support use.

Listed on Amazon as: RV Slide Out Support Jacks 2 Pcs, Heavy Duty Slide Out Stabilizers for RV

#8 · Longest Warranty

8. Sulythw RV Slide Out Supports

• Load Capacity: 5000 lb
• Material Type: Alloy Steel
• Weight: 12 lb
• Dimensions: 5.3 x 3 x 15.94 in

Best for: Stability-focused adjustable pair.

Why it ranks #8: The two-jack set lists 5,000-pound capacity and a three-year warranty, with drill and manual adjustment noted in its features.

A durable aluminum gearbox and added swivel nuts are the specified upgrades on this Sulythw pair, which the listing says improve stability by 30%. The two supports also allow drill or manual adjustment, giving RV and trailer owners a choice of operating method during setup.

The aluminum gearbox and swivel nuts are presented as durability and stability upgrades, with the manufacturer claiming a 30% stability improvement. Drill adjustment offers a powered setup option, while manual adjustment keeps a hand-operated alternative available. The pair has a listed 5,000-pound capacity and is compatible with RVs and trailers, among other vehicle types. The supplied details do not give an adjustment-height range, so buyers cannot compare its reach from the listing alone.

Skip it if you need a specific adjustment range in the listing; BOYISEN BORVJ01 gives a 19–47-inch range for its two-jack set.

Sulythw suits RV or trailer owners attracted to its stated gearbox and swivel-nut upgrades and dual adjustment methods. Its listed capacity is 5,000 pounds, but the missing height range limits how precisely you can assess placement from these details.

Listed on Amazon as: RV Slide Out Support Jacks for Camper, 5th Wheel&Travel Trailer Stabilizer

#9

9. BOYISEN BORVJ01 Supports

• Load Capacity: 5000 lb
• Material Type: Alloy Steel
• Weight: 12 lb
• Dimensions: 6 x 3 x 17 in

Best for: Stabilization-only slide support.

Why it ranks #9: Its two-jack set has a 19–47-inch adjustment range and 5,000-pound listed capacity; the listing specifically says it is for stabilization, not lifting or leveling.

A clear stabilization-only limitation sets this BOYISEN pair apart: it is intended to reduce slide-out bounce, not to lift or level an RV. Its 19–47-inch adjustable height and 5,000-pound listed capacity help buyers assess whether it suits a support point beneath an extended room.

The 19–47-inch range covers a range of support heights, and the listing advises measuring from firm ground or a support pad to the manufacturer-approved contact point. Its two jacks are rated at 5,000 pounds and are specified for stabilizing an extended slide room against movement and wobble. That stated role matters: BOYISEN explicitly says they are not for lifting or leveling the RV. Alloy-steel construction completes the listed material details.

Skip it if you want drill-assisted height adjustment; BOYISEN BORVJE01 lists electric-drill and hand-crank operation for its adjustable supports.

Choose this BOYISEN pair for stabilizing an extended slide-out when its 19–47-inch reach and listed 5,000-pound capacity suit the placement. It is not a substitute for equipment used to lift or level the RV.

Listed on Amazon as: BOYISEN RV Slide Out Support Jacks, 5000lb Capacity, 19-47 in Adjustable

#10

10. LUSHIH RVJ26 Stabilizer Jacks

• Load Capacity: 5000 lb
• Material Type: Alloy Steel
• Weight: 8.8 lb
• Dimensions: 16.53 x 7.67 x 6.5 in

Best for: Short-height trailer support.

Why it ranks #10: These two trailer stabilizers have an 11-inch working range and 5,000-pound maximum lift capacity each, but their stated fit is trailer stabilization.

A 15–26-inch travel range makes the LUSHIH pair a compact-height option for trailer slide-outs that need support closer to the ground. Each jack is rated for a maximum 5,000-pound lift capacity, and the U-shaped tops offer a defined contact surface for positioning beneath the trailer.

The 11-inch working range within the 15–26-inch travel range gives buyers a clear height window for planning placement. LUSHIH pairs a triangular threaded screw with an M18 nut, a specified arrangement intended to provide support. The U-shaped tops measure 5.94 by 2.95 by 0.9 inches, while zinc powder coating on heavy-duty steel is listed for rust and corrosion resistance. The instructions call for a level surface and chocked wheels before installation.

Skip it if you need support height above 26 inches; Garvee PLS_33GSPXAM-e6 adjusts from 21 to 49 inches for taller placements.

LUSHIH suits trailer owners whose support point falls within its 15–26-inch travel range and who value specified steel construction and coating. It is not the choice for a higher slide-out position beyond that adjustment window.

Listed on Amazon as: RV Slide Out Support Trailer Stabilizer Jacks 5000 lbs, 2 Pack 15"-26"