Balt Diversity Stand AV Cart or Mobile Stand Up Workstation or Mobile Lectern, You Decide Adjusts in height from 37 1/2" to 45 1/2" Top shelf measures 23 3/4"W x 12"D Slanted shelf measures 23 3/4"W x 11 3/4"D and is angled down 40 Middle shelf measures 18 3/4"W x 15 3/4"D Storage box measures 14 1/2"H x 18 3/4"W x 9 1/2"D