A holding unit can be built inexpensively using wooden pallets.
Used pallets are often available from manufacturers and landfills.
Pressure-treated lumber may be substituted to make a nicer looking bin. Construction costs will vary, depending on whether new lumber or pallets are used. Tools Saw Sledge hammer Claw Hammer Work Gloves Construction Details Holding Unit Using Wooden Pallets Nail or wire four pallets together to make a four-sided bin at least 3' x 3' x 3'. The bin is then ready to use. A fifth pallet can be used as a base, to allow more air to get into the pile and to increase the stability of the bin.