Storex Premium File Crate with Handles, Classroom BlueShipped byEducators Resource The new Storex storage crate features rugged dependability with a more up to date style. The traditional milk crate has received upgrades which include a solid bottom, easy grip handles, and improved drop test performance. It holds letter or legal hanging files and folders and can be safely stacked up to six crates high. Stack them on their side to creates a custom shelf unit or toss them in your car for mobile storage.