Cetma Cargo bikes offer another twist on hauling stuff.

The “standard” bike has a huge flat cargo area in front of the rider with many possibilities for modification.
Like this heavy-duty box.

This wood box is built from marine grade plywood, which means the glue used to make the plywood
won’t separate in wet climates.  Additionally, the entire box is stained and sealed with polyurethane
to protect it.  The backside of the bench is hinged to provide extra cargo room if needed.

Bikes are built to order and shipped from Oregon.  $3150 complete with shipping.