5th Wheel Camper Jacks: What You Actually Need and What You Don’t

When you’re setting up a 5th wheel camper, one of the most overlooked decisions is how you handle stabilization and leveling. People often get overwhelmed by gear options, but it’s easy to end up with more than you actually need. Worse, some of that gear might not do much at all—or cause damage over time. Whether you’re parking your rig in a state park for a few nights or setting up for a season-long stay on private property, understanding how jacks actually function (and where they fall short) saves you money and headaches.

The Main Purpose of Camper Jacks

People throw around the term “camper jacks” like it’s a one-size-fits-all thing. In reality, jacks fall into two main jobs: lifting and stabilizing.

Landing gear on a 5th wheel does the heavy lifting—literally. This gear raises and lowers the front end, usually with the push of a button on modern rigs. Rear stabilizers or supplemental jacks are there to reduce movement once your camper is in place. They don’t support weight, and they aren’t meant to lift anything. Using them to bear weight can twist your frame or lead to expensive repairs.

A lot of people confuse stabilization with leveling, but those are two different things. You level first, usually with blocks under the wheels and by adjusting the landing gear height. Stabilization comes after leveling, and it’s just about keeping the trailer from feeling like a trampoline when you walk around inside.

What You Actually Need for Most Setups

If you’re just parking on gravel or grass for a few days, your landing gear and rear stabilizers are usually enough. You level left to right with blocks under the tires, front to back with the landing gear. Then drop your rear stabilizers to reduce bounce. That’s it. You’re done. Anything else is optional, not essential.

Some folks feel the need to toss extra jacks under every corner of the frame. That might feel like it makes things more solid, but in most cases, it’s overkill. If your camper was properly leveled and the factory stabilizers are working, you shouldn’t need to do more.

Where people run into trouble is thinking they can “tighten up” their trailer by putting bottle jacks, scissor jacks, or other gear under the frame. If those aren’t rated correctly or placed at frame-approved points, they can bend the steel or crack welds.

Also, those aftermarket cross-bracing kits that claim to eliminate sway? They help in some situations, especially on older rigs with less solid frames. But they’re not necessary for most modern 5th wheels parked on reasonably level ground. It’s a lot of money and effort for a marginal gain.

When Extra Stabilization Actually Helps

There are exceptions. If you’re parking on an uneven slope, soft soil, or a site with high foot traffic around the camper, you might need extra support to keep things from shifting or rocking. That’s where extra stabilizing jacks can make sense, but only if used correctly.

Seasonal campers who leave their rig in place for months might also benefit from extra jacks—not to lift, but to take some bounce out of the floor and reduce long-term wear on the landing gear. In those cases, it’s worth using screw-type stabilizers or tripod jacks rated for your trailer’s weight class. But don’t just crank them tight and hope for the best. The frame should never carry weight outside of approved jack points.

The best time to use extras is after the rig is leveled and secured. Even then, you’re just bringing them into contact with the frame, not bearing significant weight. If your trailer shifts when you walk, or the stabilizers feel loose after setting up, then go ahead and add a secondary jack—but just enough to stop the movement, not to carry load.

What You Don’t Need (And Might Regret Using)

Hydraulic bottle jacks, car jacks, and other lift-focused tools have no place under a 5th wheel unless you’re doing axle or tire work. They’re designed to lift, not stabilize. If you leave them in place under your frame as a “support,” you’re asking for structural issues.

Plastic stacker blocks are helpful for leveling tires or landing gear on soft ground, but people sometimes stack them up like makeshift jacks under the frame. That’s a mistake. They’re not weight-rated for structural use and can collapse without warning.

Jack pads are useful to prevent sinking in soft soil, but you don’t need to buy some overpriced, branded version. A couple of wood blocks cut from a 2×10 work just as well. Keep the contact area large and avoid pressure points.

Tripod kingpin stabilizers are another popular item that gets overhyped. They can reduce front-end bounce slightly, but they’re not magic. If your trailer is already stable, adding one won’t make a dramatic difference. And if the pad isn’t perfectly level, they can introduce more stress than they solve.

How to Tell If Your Setup Is Working

Walk around the inside of the camper once everything is in place. Pay attention to floor movement near the front bedroom, kitchen, and rear living areas. A little movement is normal, especially in longer trailers. If things feel bouncy but you’ve leveled and dropped the stabilizers, try lowering them another half turn. Still bouncing? That’s when to think about one or two extra stabilizers.

Check the stability again after the first night. Trailers can settle into soft ground or blocks might shift slightly. If that happens, recheck your level and adjust. Don’t keep cranking on stabilizers hoping to fix a lean—that’s what the wheels and landing gear are for.

Also, if you feel wind pushing the camper or notice sway during storms, it’s not a jack issue. That’s a function of your rig’s profile and weight distribution. More jacks won’t fix that.

Seasonal and Long-Term Parking Tips

When you’re parked for months at a time, it’s smart to relieve some pressure from the landing gear and stabilizers. This doesn’t mean jacking the camper up like it’s on a lift. Just bring additional stabilizers into contact with the frame after it’s leveled and stabilized with the main gear. That reduces sag and keeps things tighter over time.

Re-check your level every few weeks, especially after rain or snow. Pads can sink and shifts can happen slowly. Don’t just rely on your memory or visual cues—use a small torpedo level on your floor or kitchen counter to confirm.

Also, if your stabilizers have rubber feet, inspect them regularly for dry rot or slippage. A lot of small movement problems come from the feet sliding or compressing over time, not the jack itself.

Final Thoughts

There’s a big difference between being prepared and overpacking gear you won’t use. 5th wheel campers are built with solid frames, and most have leveling and stabilization systems that work fine on their own. Extra jacks and blocks are sometimes helpful, but more often than not, they just take up space and create the illusion of better support.

The trick is knowing when the built-in system is enough and recognizing when conditions really call for more. Don’t chase every gadget or accessory claiming to make your setup rock-solid. Pay attention to the feel of the trailer, adjust carefully, and only add gear when it solves a real problem—not just because it’s available.