Jack Stands for Travel Trailers: What to Check Before You Buy

Stabilizing is not lifting or leveling

Most of the buying confusion comes from mixing up three separate jobs: leveling, stabilizing and lifting.

Leveling: getting the trailer flat side to side and front to back. This is usually done with leveling blocks or ramps under the tires and the tongue jack at the front. Some trailers have a powered leveling system that does this job. Stabilizing: firming up a trailer that is already level so it moves less on its suspension and tires. This is the job of stabilizer jacks and support stands. Lifting: raising part of the trailer off the ground, such as for a tire change. This requires a jack rated for the load, and then stands rated to hold it while the jack is removed.

Many travel trailers come with scissor stabilizer jacks at the corners. These, and most add-on stands, are built to brace a trailer, not to carry a large share of its weight. If you crank a stabilizer or stand hard enough to lift the trailer, you can bend the stand, stress the frame, or leave the trailer resting on supports that were never meant to hold it. Snug is the goal, not lift.

Types of support stands you will see

Type | Typical use | Points to consider; Adjustable pin-style stands | Extra corner or mid-frame support on a parked trailer | Height adjusts in steps; check that the step spacing lets you get close to the frame before final tightening; Screw or crank-top stands | Fine adjustment to make firm contact with the frame | Easier to snug precisely; check thread quality and how the top saddle meets the frame; Ratchet-style jack stands | General automotive stands sometimes used under trailers | Built mainly for vehicle service; check height range and how the saddle fits a trailer frame rail; Tripod or king-pin stands | Supporting the front of a fifth-wheel at the pin box | Fifth-wheel specific; check compatibility with your pin box design; Tongue stands | Extra support under the A-frame of a bumper-pull trailer | Reduces fore-and-aft rocking at the tongue jack

What to check when choosing heavy-duty RV jack stands

Load rating

The load rating is the maximum weight the manufacturer says a stand, or a pair of stands, can carry. Check whether the rating is given per stand or per pair, because listings are not always clear. For pure stabilizing, the stand is not supposed to carry much weight, but a generous rating is a sensible margin. It helps if a stand ends up carrying more load than you intended on uneven ground. If you might ever use stands to hold the trailer during service, compare the rating to the actual weight at that corner or axle, not just a rough guess. Your trailer's weight labels and manual are the place to start.

Height range

Measure the gap from the ground to the frame at the points where you plan to place stands. Do this with the trailer level, and on the kind of site you usually use. Leveling can raise one side of the trailer, and a sloped site can leave a large gap on the downhill side. A stand that is too short will need blocking underneath, which adds another thing that can shift. A stand that is too tall when fully lowered will not fit at all. Pick a range that covers your usual gaps with room to adjust.

Base footprint and ground stability

Ground stability often matters more than the stand itself. A narrow foot can sink into soft soil, sand, gravel or hot asphalt, and the trailer will start moving again. Look for a wide base, or plan to use a solid pad underneath to spread the load. On a slope, a stand that is not vertical can tip or slide, so set the base on a flat, firm surface. Do not trust it to stay put if it is leaning.

Saddle shape and support points

The support point is where the stand's top, often called the saddle, meets the trailer. It should sit on the steel frame rail or another structural member the trailer manufacturer approves. It should never press against the floor, the underbelly covering, holding tanks, plumbing, wiring or the axle. Check that the saddle shape matches your frame profile so the rail cannot slip off. A saddle that fits poorly can dent or scratch the frame and is more likely to shift.

Adjustment mechanism

Pin-style stands are simple and sturdy but adjust in steps. Screw or crank adjustment lets you snug the stand against the frame without forcing it. Many owners prefer stands that combine both: a pin for rough height and a screw for the final contact. Whatever the design, the locking parts should engage positively and should not depend only on friction.

Material, weight and storage

Steel stands tend to be heavier and tough. Aluminum stands are lighter to carry and store, and they resist rust, but compare their load rating and build quality carefully. Because the stands travel with you, their weight and size count against your cargo capacity and storage space. Check whether they fold, nest together or come with a carry bag. Look at the finish if you camp in wet or coastal areas.

Compatibility with your existing stabilizers and leveling system

Before buying, look at what your trailer already has. If it has corner scissor jacks, extra stands are usually placed mid-frame or under the tongue to reduce movement those jacks do not control. If your trailer has a powered leveling system or powered stabilizers, check the manual before adding stands. Some systems expect to control all ground contact, and a stand in the wrong place may interfere with them.

Stabilizer mounting also matters. Some owners add bolt-on or weld-on stabilizer jacks instead of loose stands. That is a different purchase: it involves the frame structure, fastening method and ground clearance while towing, and it is best guided by the manufacturer instructions for both the trailer and the stabilizer kit. Loose stands avoid modifying the trailer, but you have to place and remove them every time.

Setup order at the campsite

Park on the firmest, flattest spot available and chock the wheels. Level side to side with blocks or ramps under the tires, then level front to back with the tongue jack. Unhitch only once the trailer is level and chocked, following your usual hitching procedure. Lower the built-in stabilizers until they just make firm contact. Place extra stands on pads at approved frame points and adjust them until snug, without lifting the trailer. Recheck after the first night or after rain, since ground can settle. Remove all stands and raise all stabilizers before hitching and moving.

If you need stands for maintenance, not just camping

Holding a raised trailer for a tire change or underbody work is a load-bearing job, not stabilizing. Use a jack rated for the weight to lift at a point the trailer manufacturer approves. Then place stands rated for that load on solid, level ground before doing any work. Never rely on the jack, scissor stabilizers or light camping stands to hold the trailer while anyone is near or under it. If your trailer manual describes a specific lifting or support method, follow it.

Quick buying checklist

Decide the job: stabilizing only, or also holding the trailer during service. Check whether the load rating is per stand or per pair, and leave margin. Measure the ground-to-frame gap with the trailer level and pick a height range that covers it. Choose a wide base, or plan on pads for soft or uneven ground. Make sure the saddle fits your frame rail and contacts only structural points. Prefer positive locking, ideally with fine screw adjustment. Weigh steel against aluminum for durability, weight and corrosion resistance. Confirm the stands work with your existing stabilizers or leveling system. Check your trailer manual for approved support and lifting points before first use.