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Milk crate seating.
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more crate seat tutorials
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Milk crate seats/storage
Crate Seat Tutorial
Zip tie crates to make shelving.
bookcase on it's side + foam padding
Cushion tutorial for everything from benches to window seats to daybeds.
Crate seat how to
Zip tie crates to end of table groups to make organizers.... Need to do this in the boys room