Compared to typical racking, the pallet rack is constructed of hot-rolled structural channel column
with full horizontal and diagonal bracing.
Limited research has been conducted in the area of cold-formed steel lipped channel column with distortional and global buckling interaction.
The ultimate load carrying capacity of the pin-ended cold-formed steel lipped channel column was significantly reduced due to interaction of distortional-global buckling mode.
It is found that the current design rule in Direct strength Method over predict the ultimate capacity of lipped channel column under going interaction of distortional-global buckling mode.
Silvestre et al  conducted parametric studies to assess the performance of DSM for lipped channel columns affected by local-distortional interaction.
The DSM design strengths are unconservative for all channel columns.
SK3000 pallet racks are constructed of hot-rolled structural channel columns
with full horizontal and diagonal bracing, offering greater frame strength, durability and cross-sectional areas than conventional selective racking, according to Wharry.
To enhance rack longevity, the General Mills plant chose rack that features a bolted beam connection to structural channel columns
. A number of rack features helped the company meet its strength, durability and maintenance goals.
The main channel columns
are slightly larger and flared at the base.
Compatible with automated storage and retrieval systems (AS/RS), both rack systems feature all-welded steel construction, welded load bearing plates with floor anchors, structural channel columns
and load beams for enhanced strength over roll-form style racking.
Structural channel columns
and load beams are strongest in the corners and sides where more steel is concentrated.