Pallet Rack Decking Load Type Specification Sheet

For Warehouse Rack & Shelf to offer you the safest and most cost-effective Storage Rack Deck
for your project, we need you to provide us some data regarding: 1.) the worst-case loading that
will be on the decks, 2.) the type and dimensions of the storage rack beams, and 3.) the style of
deck you need for your application. The requested information and data on this 3-page
document are based on the MHI RMI ANSI MH-26.2 Standard for Design, Testing, and
Utilization of Industrial Storage Rack Decking.

The load capacity and loading types are described below. Image below provides a place for you to fill
in the worst-case loading conditions including any impact factor and the dimensions of the load
distribution for your project. If you are uncertain which of your potential load conditions are the
worst case, just provide Ohio Gratings the data for all the potential cases, and we will help
determine the deck that best meets all cases. Page 3 provides a place for you to fill in the
dimensions of the rack beams for your system and the style deck you need for the project.

Load Capacity and Loading Types on Pallet Rack Decking:

a) Uniformly distributed load (UDL): The capacity shall be evenly distributed over the entire surface
on the rack deck, independent of the beams. The manufacturer shall specify only the load capacity
in pounds (kilograms).
b) Partially distributed uniform load (PDUL): The capacity shall be evenly distributed over only a
portion of the entire surface of the rack deck. The manufacturer shall specify the capacity in pounds
(kilograms), and the dimensions of the smallest expected footprint.
c) Two linear loads front to back (2LLF): The capacity shall be evenly distributed over two linear
elements oriented perpendicular to the beams. The manufacturer shall specify the capacity in
pounds (kilograms), the smallest dimensions of the elements and the smallest expected center to
center distance between the elements.
d) Two linear loads left to right (2LLR): The capacity shall be evenly distributed over two linear
elements oriented parallel to the beams. The manufacturer shall specify the capacity in pounds
(kilograms), the smallest dimensions of the elements and the smallest expected center to center
distance between the elements.
e) Three linear loads front to back (3LLF): The capacity shall be evenly distributed over three linear
elements oriented perpendicular to the beams. The manufacturer shall specify the capacity in
pounds (kilograms), the smallest dimensions of the elements and the smallest expected center to
center distance between the elements.
f) Three linear loads left to right (3LLR): The capacity shall be evenly distributed over three linear
elements oriented parallel to the beams. The manufacturer shall specify the capacity in pounds
(kilograms), the smallest dimensions of the elements and the smallest expected center to center
distance between the elements.
g) Four-point load (4PL): The capacity shall be evenly distributed over four elements. The
manufacturer shall specify the capacity in pounds (kilograms), the smallest dimensions of the fourpoint
load elements and the smallest expected center to center distance between the elements in
both directions.
h) Nine-point load (9PL): The capacity shall be distributed over nine elements in a symmetrical grid.
The manufacturer shall specify the capacity in pounds (kilograms), the smallest dimensions of the
nine-point load elements and the smallest expected center to center distance between the
elements in both directions.