A pinch weld is the folded seam where two body panels are welded together along the bottom of the sill. On most unibody cars a short, reinforced section of it — usually marked with a notch, an arrow or a plastic tab — is the manufacturer's designated lift point. It is strong in the right place and very easy to bend everywhere else.
The problem is shape, not strength. A standard jack stand saddle is a curved steel cradle designed for a round axle tube. Put a thin vertical seam into a V-shaped notch and the load lands on a knife edge, which is exactly how the classic folded-over pinch weld happens.
The two things that actually work
A flat saddle
A flat rubber face bears against the reinforced panel either side of the seam instead of pinching the seam itself. That is the ESCO's removable flat-top cushion, and it is the reason a stand costing more than a budget pair earns the difference on this specific car.
A slotted pad
A slotted pinch weld pad has a groove cut down the middle. The seam drops into the groove and the load is carried by the flat shoulders on either side. It converts any curved cradle into something safe for this job for a fraction of the price of new stands, which is why it is the pick most readers should buy.
What each option does
| Approach | How it carries the seam | Trade-off |
|---|---|---|
| Flat-top stand saddle | Bears on the panel either side of the fold | Costs more; taller lowest setting |
| Slotted pad on a curved cradle | Seam sits in the groove, load on the shoulders | Adds about 1 in of height; one pad per point |
| Bare curved cradle on the seam | Load concentrates on the fold | Bends the pinch weld — do not do this |
| Hockey puck or wood block | Depends entirely on what you cut | No slot unless you make one; easy to get wrong |
The height cost, which is real
A pad adds roughly an inch between the saddle and the car. On a stand already starting at 11 in or more, that is an inch you have to lift past before the stand will slide under. On a low car it can be the difference between a workable lift and an impossible one — see jack stands for low cars if that is your situation.
Find the reinforced section first
Not all of the pinch weld is a lift point. The reinforced part is usually a few inches long and marked; the rest of the seam will fold under load. Car jack points shows how to find yours, and where to put jack stands covers the difference between a lift point and a support point, which are not always the same place.
If you already own conventional stands with curved cradles, you do not necessarily need new ones — jack stand pads and adapters covers the slotted pad that fixes the geometry for a few dollars, including the height it costs you and how many you actually need.