IKEA Under Bed Storage Box Bin (229 Southern Heights San Rafae)

This wooden under bed storage box is initially for an older IKEA sofa bed (2015 discontinued).
The dimension is 65” x 27.25” x 6.5”
It could be used under twin size bed to store things.
It’s not ideal to kids’ play pan as the thin particle unpainted board wouldn’t hole the weight of a child. Some minor scuff along edges (see photo).
Easy pick up from San Rafael near Wolfe Grade and C Street & Woodland Ave. It may need a station wagon or truck/SUV. It’s not heavy.
There should be another creative way to repurpose this.