Shipping Containers for sale – Big Bear Containers Sacramento
Guides

How to Inspect a Used Shipping Container Before You Buy

A used shipping container is one of the best-value storage solutions you can buy – as long as it is sound. Every unit we sell is inspected before dispatch, but knowing what to look for helps you choose the right grade and check your container on delivery day.

1. Start with the roof

The roof is where most leaks begin. Look for dents that collect standing water, rust holes and soft spots. From inside, close the doors on a sunny day: if you see pinpricks of daylight, water will get in too. Surface rust is normal on used units; rust that you can push a screwdriver through is not.

2. Check the walls and corner posts

Corrugated side walls can take dents without losing strength, but look for creases near the corner posts and holes along the bottom rail where water and debris collect. Corner castings – the steel blocks at each corner – should be intact, since they carry the container’s weight.

3. Inspect the floor

Container floors are thick marine-grade plywood on steel cross members. Walk the full length: the floor should feel solid with no soft, spongy or delaminating areas. Stains are normal; rot and holes are not. Look underneath, if you can, for badly rusted cross members.

4. Test the doors and seals

  • Doors should open and close fully with reasonable effort – stiff hinges can be lubricated.
  • Locking bars should engage the keepers top and bottom.
  • Rubber gaskets around the doors should be continuous, flexible and free of large tears.

Damaged seals are the most common cause of water getting into an otherwise sound container.

5. Check for smells and residue

Containers have carried all kinds of cargo. A strong chemical or musty smell can be hard to remove – important if you plan to store food, furniture or clothing.

6. Understand the grade

Match what you see to what you paid for. A wind & watertight unit should keep weather out but will show dents and patched paint. A cargo-worthy unit is structurally suitable for shipping. A one-trip unit should look nearly new. Our container grades guide explains the differences.

On delivery day

Inspect before the driver leaves, note any transit damage on the paperwork and send us photos within 48 hours. Under our returns policy we will put right any unit that arrives damaged or not as described.

Ready to buy? Browse our shipping containers or call (279) 272-6346 for advice.