Substituting Rack for Rack Deads?

What can I use in place of a squat rack in order to perform rack deads at my house?
Also, how high off the ground should it be.

any ideas are appreciated. Thanks

Reinforced boxes or blocks of wood would work. Fill 2 milk crates with blocks of wood.

When deciding what height to make them you take into account the size of the plate. Make it a little lower than you want so you always have the option of putting something underneath it to make it taller.

Extra bumper plates if you have them.