Frame depth is determined by subtracting 4" to 6" from the load depth (pallet stringer length — Figure 2).

• Frame height is determined by adding a minimum of 4" clearance at the top of load plus beam height (determined above) plus overall height of the load and pallet. Next multiply this number by the number of shelf levels per upright frame. Add to this value a minimum of 1-1/2" clearance at the top (Figure 1). This final number can be used to select an upright of equal or greater height listed in the catalog.
• Frame capacity is determined by using the calculated beam (pair) capacity (from above) and multiplying by the number of shelf levels. Knowing the minimum required height, depth and capacity, a part number can now be selected from the capacity tables of the medium or heavy duty upright.

Caution: The main controlling factor in rating the upright is the vertical distance from floor to first shelf level. If the level exceeds 48" for medium and heavy duty, or 60" for extra-heavy duty uprights, please consult factory for extra capacity rating.