Answering the need for stable, safe slide-outs, these five options offer strong load capacity and adjustable heights to fit most fifth wheels, class A RVs, and travel trailers. Best for full-time RVers, large fifth wheels, and those who want quick adjustments via drill or hand crank. This guide compares top picks to help you choose the right jack system for reducing sway, protecting slide-outs, and improving on-site stability.
Summary of chosen products
| Product | Best For | Key Feature | Height Range |
|---|---|---|---|
| Kohree RV Slide Out Supports (4-Pack) | Large fifth wheels and Class A | 20,000 lb total capacity; drill power adjustment | 20″–49″ |
| Garvee RV Slide Out Support Jacks (Set of 4) | Heavy-duty stabilization | Flat top for even weight distribution | 21″–49″ |
| Garvee 4 Pack RV Slide Out Supports | Flat top contact, general stability | Flat top block; 21″–49″ height | 21″–49″ |
| RV Slide Out Support Jacks For Camper (2 PCS) | Balanced travel trailers and campers | Drill or hand crank adjustable; 16″–36″ | 16″–36″ |
| AUH Store RV Slide Out Jacks (2 PCS) | Universal fit, easy install | Universal U-shape plate; 15.1″–35.4″ | 15.1″–35.4″ |
Kohree RV Slide Out Supports (4-Pack)
Best for: Large fifth wheels and Class A RVs that require substantial stabilization. This 4-pack offers a total capacity of 20,000 lbs and includes power drill-ready adjustments to speed setup. It’s ideal for full-time RVers who need steady, wind-resistant support.
Why selected: High combined load capacity reduces shake by up to 70% and is designed to handle extreme weather conditions. A drill-based adjustment saves time compared with manual cranks, improving on-site efficiency.
Caution: Higher-capacity units may require more robust mounting hardware and ensure compatibility with your slide-out frame before installation.
Garvee RV Slide Out Support Jacks (Set of 4)
Best for: Campers and travel trailers requiring strong stabilization with a flat contact surface. The 20,000 lb capacity and 21″–49″ height range fit many mid- to large-size RVs.
Why selected: Flat top blocks distribute weight evenly to protect slide-out floors, reducing bounce and sway on uneven ground or soft surfaces.
Caution: Ensure the flat top block aligns with your slide-out frame to avoid improper contact and potential instability on rough terrain.
Garvee 4 Pack RV Slide Out Supports
Best for: Campers and RV owners seeking a reliable stabilization pack with a flat contact surface. Suitable for 21″–49″ slide-out heights.
Why selected: Each jack is designed to curb sway and bounce, helping to keep slide-outs level during windy conditions and uneven ground.
Caution: Data indicates a uniform weight distribution design; verify your slide-out frame specifications for best fit and safety.
RV Slide Out Support Jacks For Camper (2 PCS)
Best for: Travel trailers and campers needing a balance of stability and adjustable height. This set covers 16″–36″ ranges with 5,000 lb capacity per jack.
Why selected: Enhanced durability from aluminum gear box and added swivel nuts improve longevity and stability, with two lift methods (drill or manual crank).
Caution: 5,000 lb per jack means total system should consider uneven loads; avoid using beyond stated capacity on very heavy slide-outs.
AUH Store RV Slide Out Jacks (2 PCS)
Best for: RV owners seeking a universal fit with straightforward installation. Height range from 15.1″ to 35.4″ fits many slide-out configurations.
Why selected: Universal U-shaped steel plate and practical, step-by-step adjustment process support quick setup and stable contact with slide-out frames.
Caution: Check compatibility with your specific slide-out design to ensure a secure fit and avoid interference with camper components.
Buying Guide: How to Choose The Right Slide Out Supports
- Load capacity: Match the total weight of your slide-out and content. For large fifth wheels, prioritize higher capacity (15,000–20,000 lbs total) to reduce sway.
- Height adjustment range: Ensure the range covers your RV’s slide-out clearance from ground to frame. Wider ranges (16″–49″) fit more models but require stable mounting.
- Contact surface: Flat top blocks distribute weight evenly; curved or narrow contact can cause localized floor stress. Choose flat-top designs when possible.
- Adjustment method: Drill-access or power tool adjustments speed setup; manual cranks are more portable but slower. Verify drill compatibility with your equipment.
- Durability and material: Steel builds with weather-resistant finishes perform best in wind, rain, and snow. Aluminum variants are lighter but may offer less mass for stability.
- Installation ease: Look for twin-action setups with clear pins or locking mechanisms to prevent movement during travel or wind loads.
- Compatibility: Check that the U-shaped bracket and top contact align with your slide-out frame design and mounting points.
Frequently Asked Questions
- What is the primary purpose of slide-out supports?
They stabilize the slide-out during operation to reduce sway, bounce, and potential floor damage. - Can I use drill-powered jacks on any RV?
Drill-powered jacks work with many slide-out frames, but verify the mounting pattern and power tool compatibility first. - Are 2-pack or 4-pack sets better?
Larger 4-pack sets provide more even support for wider slide-outs and higher stability, especially for heavy fifth wheels. - Do these supports require professional installation?
Most kits include straightforward assembly, but ensure secure mounting and level positioning; consult manufacturer instructions if unsure. - What should I inspect after installation?
Check for even contact with the slide-out floor, verify pins are locked, and confirm there is no binding during full extension and retraction. - How do I know if I chose the right height range?
Measure your slide-out travel clearance and select a range that accommodates the maximum expected height without overextending the jacks.