This sketch illustrates the fork pocket spacing for NAI's Forklift Order Picking Carts, the overall size is 40" x 48" and are 88" - 89.5" high depending on orderpicker brand they are designed to be used.
BRAND H DH X XX
Crown 10.38" 5.25" 15" 26"
Raymond 9.5" 4.38" 18.5" 29.5"
Hyster 11.19" 6.06" 17" 28"
Toyota 9.5" 4.38" 18.5" 29.5"
Yale 11.19" 6.06" 17" 28"