Related Clues:

• Warehouse stack
• Shippers' purchases
• Laundry piles
• Compost units
• Shipping boxes
• Slatted containers
• Orange containers
• Packing cases
• Mounds, stacks
• Speeds by the hundred for boxing
• So piles may take shape
• Shipping containers
• Lots (of piles?)
• Highway clunkers
• Warehouse pile