These boxes come in 4 size, listed below.

They measurements are:

X-Large - 39"W x 5.75"H x 9.5"D = $31.95

Large - 30"W x 5.75"H x 9.5"D = $29.95

Med. - 24"W x 5.75"H x 9.5"D = $27.95

Small - 21"W x 5.75"H x 9.5"D = 25.95

Choose desired size.