Some wedding storage boxes specifications for your references:
Outer White Box: 34 (L)x 21 (W) x 7.5 (H) inches
Gold Box: 32 x 20.5 x7.5 inches
Gold Box Lid (to cover the top of the box): 32.5 x 20.75 x 3 inches
Inner White Box (acid free): 31.5 x 20 x 8 inches
Gold Box Lid (acid free, to cover the outside of the box): 31.5 x 20 x 9 inches