Extended RV stays put real weight on slide-out mechanisms. Without proper support underneath, those heavy rooms slowly sag, the rails start to bend, and a quiet weekend turns into a costly repair. The right pair of jacks takes that pressure off and keeps the living space level through every weather change. This roundup covers seven solid options, from heavy-duty four-packs to compact two-packs built for smaller campers.
A Fast Comparison Of The Options
Garvee RV Slide Out Support Jacks (Set of 4)
Garvee 2 Pack RV Slide Out Supports Jack
Camco Eaz-Lift RV Slide Out Supports
Garvee 4 Pack RV Slide Out Supports Jack
Kohree RV Slide Out Supports Jack (Set of 2)
RV Slide Out Support Jacks with Rubber Mat
Schumaho King Pin Tripod Stabilizer Jack
What Each Pick Brings To The Table
Heavy campers with multiple slide-outs need backup under every corner, and this four-pack delivers without forcing a second purchase. The telescoping range stretches from 21 inches up to 49 inches, which covers most fifth wheels and long travel trailers sitting on taller foundations. A power drill drives the lift mechanism quickly, while the included hand crank handles low-tech setups when a cordless tool isn’t handy.
Owners running seasonal setups appreciate that all four jacks share the same design. Swapping a worn unit with a spare from the kit takes minutes rather than a special-order wait. The flat-top contact block spreads the load evenly across the slide-out’s underside.
The Case For It
- 20,000 lb total weight capacity handles large, multi-room rigs with confidence
- Four-jack set covers both slide-out rooms on most coaches without buying extras
- Power drill compatibility speeds up setup, cutting deployment time noticeably
- Wide height window fits everything from low-profile trailers to tall fifth wheels
Things To Consider
- Storing four jacks takes dedicated cargo space, which tight rigs may lack
- Steel hardware benefits from a quick wipe-down after wet-weather trips to prevent surface corrosion
Made For
Full-time RVers and large fifth-wheel owners who want complete slide-out coverage for long seasonal stays.
Consider Something Else When
Smaller camper owners should look at the Kohree two-pack, which covers a single slide-out without the extra storage burden.
Travel trailers with one main slide-out rarely need four jacks, and this Garvee pair covers that exact scenario. Each unit holds up to 10,000 lb, more than enough for typical bedroom or dinette extensions. The flat-top block sits flush against the slide-out’s underside, removing the need to wedge a scrap block of wood into the gap.
Compared with the four-pack version reviewed above, this kit skips the spare units but keeps the same drill-friendly lift mechanism. Weekend travelers appreciate that the magnetic hex socket sticks to the crank handle, so a dropped piece in the grass doesn’t end the setup early.
Strengths Worth Knowing
- 10,000 lb per jack handles most single slide-out rooms on travel trailers
- Flat top support block eliminates makeshift wood shims during setup
- Drill-compatible adjustment cuts deployment time on hot summer days
Worth Noting
- Only two jacks mean rigs with two slide-outs need a second purchase
- Lower capacity than the four-pack sibling, so heavier fifth wheels should look elsewhere
Key Specs
Right Fit For
Travel trailer owners with one slide-out room who want a clean, drill-driven setup without overpaying.
A Better Fit Elsewhere
Rigs with two large slide-outs benefit more from the Garvee four-pack, which delivers matching coverage on both rooms.
Camco has been outfitting RVs for decades, and this Eaz-Lift pair carries that established reputation. Each jack supports up to 5,000 lb, a sensible rating for the bedroom slide-outs found on most mid-size travel trailers. The incremental lock positions along the threaded shaft keep the height from drifting once the load settles.
The 19-to-47-inch range starts lower than the Garvee units, which helps owners with low-clearance campers that don’t have much vertical room beneath the slide-out. Steel construction handles repeated seasonal use, though owners in coastal climates should rinse the jacks occasionally to slow salt-related wear.
The Helpful Details
- 5,000 lb per jack matches the load on typical bedroom and dinette slide-outs
- Incremental lock positions prevent gradual height loss after setup
- Heavy-duty steel frame handles repeated deployments across many seasons
- Lower starting height fits campers with tight underbelly clearance
Room For Improvement
- No drill-drive socket included, so setup takes more hand-cranking than Garvee options
- Lower capacity rules out heavy full-wall slide-outs on luxury fifth wheels
- Steel finish benefits from a dry-storage routine to avoid surface rust over time
Feature Card
Who It Suits Best
Recreational campers who value a recognized brand and don’t mind trading drill-driven speed for a lower purchase price.
Look Elsewhere When
Owners wanting faster drill-driven setup should look at the Garvee two-pack, which uses a magnetic hex socket for quicker adjustment.
Multi-slide-out fifth wheels and toy haulers benefit from a matched set of four jacks, and this Garvee kit delivers the lot with a 20,000 lb total rating. The flat top support block integrates with each jack, so every corner of every room sits on a consistent surface. Adjustable height spans the same 21-to-49-inch window that the smaller two-pack uses.
The drill-compatible drive is the same system found on Garvee’s smaller kits, which means seasoned owners already know the workflow. That consistency pays off when swapping parts or sharing accessories between setups. A four-pack also leaves two jacks in reserve for emergencies during long trips.
Practical Advantages
- 20,000 lb total capacity covers multi-slide-out coaches with margin
- Four matching jacks create a uniform support strategy across rooms
- Flat top design eliminates the wood-block improvisation that older jacks require
- Spare units stay in the storage bay for roadside replacements
Points To Note
- Heavier steel construction means more lifting during initial setup
- Four-pack footprint demands serious cargo space in tow vehicles
Quick Facts
Best Suited To
Owners of large fifth wheels with two slide-out rooms who want a coordinated support setup and built-in redundancy.
Another Choice May Suit
Single-slide-out camper owners save storage space by choosing the Kohree two-pack, which handles one room without the extra weight.
Kohree’s flat-top block is the headline feature on this two-pack, and the engineering choice pays off during setup. The integrated top spreads weight evenly without requiring owners to hunt for a scrap of plywood to wedge under the slide-out. Power drill compatibility speeds adjustment, and the included crank handle works fine when an outlet isn’t nearby.
Compared with the Garvee two-pack reviewed earlier, the design language here leans toward simpler weekend deployments. The pair suits campers who want to unhook and stabilize quickly without wrestling heavy hardware into position.
Positive Takeaways
- Flat top block removes the need for improvised wood shims during setup
- Power drill drive saves time on routine weekend deployments
- Compact two-pack fits in standard exterior storage bays
Honest Caveats
- Lower load rating rules out support for heavier full-wall slide-outs
- Two-jack set needs supplementing for rigs with multiple slide-out rooms
Perfect Match For
Weekend travelers with a single slide-out who appreciate a clean, integrated top block and minimal setup fuss.
Skip It When
Heavy fifth-wheel owners running multiple rooms should step up to the Garvee four-pack for the matching capacity.
Pop-up campers, van conversions, and teardrop trailers all share one trait: limited ground clearance. This two-pack’s 15-to-26-inch range fits those tight spaces where standard jacks simply won’t fit. The rubber mat base grips asphalt and gravel, preventing the slow creep that plagues bare-metal feet on softer surfaces.
Each jack holds up to 5,000 lb, a sensible rating for the smaller slide-outs found on compact rigs. The folding handle design lets the units tuck into tight storage bays where rigid cranks won’t fit. Owners report that the zinc powder-coating holds up well against road spray, though a quick rinse after salty beach trips extends the finish.
Standout Benefits
- Compact 15″ starting height fits low-clearance vans and pop-ups
- Rubber mat base grips pavement and gravel without scratching surfaces
- Folding handle design stores in tight cargo compartments
- Zinc powder-coating resists corrosion through multiple seasons
Practical Considerations
- 26″ maximum height won’t reach tall fifth-wheel slide-outs
- Rubber mat wears faster on rough concrete and may need periodic replacement
- Lower capacity rules out support for heavy luxury coach slide-outs
Feature Snapshot
Whose Shelf It Belongs On
Van lifers and pop-up camper owners who need compact stabilization that fits low ground clearance and tight storage.
Reach For A Different Pick When
Tall fifth-wheel owners need the Garvee four-pack, whose 49-inch maximum height reaches much higher slide-outs.
Fifth-wheel towing starts at the king pin, and this tripod stabilizer locks down that front pivot before unhitching. Unlike the slide-out supports reviewed earlier, this jack serves the connection point between tow vehicle and trailer, eliminating the front-end wobble that walks through the cabin during setup. Dual drive modes accept both a hand crank and a power drill.
The tripod footprint spreads weight across a wider base than standard pin boxes, which protects soft campground pads from digging in. Setup runs a few minutes from out of the box, with no assembly beyond extending the legs to grade.
What Makes Sense
- Tripod base distributes load across soft campground surfaces
- Drill-compatible adjustment speeds up the pre-unhitch routine
- No-assembly design gets working out of the packaging
Factors To Consider
- Specialty purpose means it supplements rather than replaces slide-out jacks
- Tripod legs need leveling on uneven sites for proper load transfer
Built With In Mind
Fifth-wheel owners who want to eliminate front-end sway before unhitching and need a tripod that handles soft ground.
Swap It Out When
Travel trailer owners without a king pin should stick with the Garvee two-pack, which supports slide-out rooms rather than the front coupling.
Key Details That Shape A Smart RV Slide-Out Support Choice
Capacity And Slide-Out Size
The weight rating printed on each jack tells the real story. A bedroom slide-out on a mid-size travel trailer may only need 5,000 lb per jack, while a full-wall slide on a luxury fifth wheel pushes well past that. Owners running larger rooms should size up to the Garvee 20,000 lb four-pack rather than gambling on lighter-duty pairs. Undersized jacks flex under sustained load, and that slow bending is what cracks slide-out rails over time.
Height Range And Clearance
Measure from the ground to the slide-out’s underside at the deployed position, with the camper fully leveled. That number has to fall within the jack’s stated range, ideally closer to the middle for fine adjustment room. The SKYFISH 15-to-26-inch pair covers vans and pop-ups, while the Garvee units handle taller coaches. Buying a jack that maxes out too low forces risky over-extension, which stresses the threads.
Drive Mechanism And Setup Speed
Hand cranks work everywhere but slow down setup on hot days. Power drill compatibility cuts deployment time substantially, especially across four-jack sets. The Garvee kits ship with a magnetic hex socket that stays put during travel. Campers who set up weekly benefit from drill-driven adjustment, while occasional travelers may not mind the extra cranking.
Storage Footprint
Four jacks eat serious cargo space, and steel hardware adds weight that affects payload. Two-packs fit standard exterior storage bays without forcing a reorganization. Full-timers with basements may not care, but weekend travelers with small tow vehicles should weigh storage before sizing up.
Key Considerations Across These Picks
Pitfalls Shoppers Hit
The most common mistake is sizing jacks by trailer weight rather than slide-out weight. Slide-out rooms are far heavier per square foot than the rest of the coach, so a jack rated for the whole trailer may still sag under one room. Buyers also tend to skip the height measurement and end up with jacks that won’t reach their setup, forcing risky over-extension. Measuring from ground to slide-out underside at full deployment catches this before purchase.
Where The Extra Money Goes
Higher-capacity jacks use thicker steel walls, larger threaded shafts, and upgraded locking mechanisms. The Garvee 20,000 lb four-pack costs more than entry-level pairs because the steel content alone is heavier, and the drill-drive socket adds manufacturing complexity. For full-time RVers and heavy fifth-wheel owners, that upgrade translates directly into fewer rail repairs and longer slide-out lifespan. Weekend travelers with single, smaller rooms rarely need that extra margin.