Floor delamination

The decision a soft spot forces you to make

You are standing in a used container with a flashlight, you have pressed your heel into a spot that gives a little, and now you have to decide whether that is a container to walk away from or one that is still a fine buy at a used price. That decision comes down to one thing: how far the soft spot goes, not whether it exists at all.

A little give at a single seam near the doors is a different animal than a floor that flexes across half the container. Both can get called delamination, and only one of them should change your mind about the box.

What is actually separating

A container floor is marine-grade plywood, several thin layers glued and pressed together, laid over steel crossmembers and coated in a wear layer. Delamination is that glue bond letting go, either between the plywood and the steel it sits on, or between the plywood's own layers. Water is almost always the cause. It gets in through a worn door gasket, a gap at the floor line, or years of moisture cycling underneath, and it swells and softens the layers until they stop holding together.

It reads to your foot as give, spring, or a hollow sound instead of the solid thud a sound floor gives back.

The deciding factor: location and extent, not the word itself

A soft spot sitting right where the crossmembers have actually rotted through is a structural problem. It will get worse under weight, and it can mean the steel underneath is compromised too. A soft spot that is isolated to a small area near a door seal, with solid crossmembers underneath once you check, is a repair, not a red flag.

That is the same distinction our inspection checklist draws between old stains, which are cosmetic, and flex, which is not. If you can reach the crossmembers from underneath, check them directly instead of guessing from the topside.

Where this puts a container on our lot

A floor with real delamination, rotted crossmembers, or soft spots that run any real distance does not clear our cargo-worthy or wind and watertight bar, the same bar that rules out holes and patched-over rot. A little cosmetic staining, or a single tight spot that checks out solid underneath, does not disqualify a box. That is the kind of honest wear already priced into a used unit.

If you are inspecting a container anywhere, not just here, walk the full floor and press hard with your heels the way our checklist lays out, and look underneath if the box is up on blocks.