When a rack carries wooden or plastic pallets, the weak point is often not the steel frame. It is the pallet base. In Project 14346, the rack layout was engineered around a 1100 x 1100 pallet footprint so the crossmembers could sit where the pallet actually bears load, not where a generic drawing says they should.
Why the pallet feet decide the rack detail
If the crossmembers land between the pallet support points, the load is forced to bridge a gap. On a wooden pallet, that can twist a stringer or crush a foot block. On a plastic pallet, it can concentrate stress into the molded feet or runners and start a slow deformation that only shows up after repeated cycles. The rack still looks strong, but the load path is wrong.
That is why the Project 14346 brief did not treat the rack as a fixed standard. It treated the pallet drawing as the starting point. The crossmembers were placed to match the pallet support feet, so the load could move straight down into the steel frame instead of being pushed through a weak section of the pallet.
What Project 14346 specified
The documented project used a 1100 x 1100 pallet reference and 50 x 2.5 mm uprights. That is already a clue about the engineering approach: the rack was being tuned as a system, not assembled from a single stock outline. The upright size, the crossmember spacing, the pallet support points, and the total cargo height all had to work together.
For buyers, this matters because the right answer is not always “make the rack stronger.” Often the right answer is “make the rack stronger in the exact place where the pallet transfers load.”
Wooden pallet vs plastic pallet: the problem is similar, but not identical
Wooden pallets usually fail at the stringer or block under repeated point loading. Plastic pallets often fail differently: the foot area can creep, bow, or lose geometry after heat, moisture, or long storage cycles. The crossmember rule is the same in both cases, but the detail is not.
That is the tradeoff. A project-specific rack can protect the pallet better, but it gives up some interchangeability. If you want one rack to fit many pallet pools, you usually need a more forgiving inner layout. If you want to protect one pallet type with repeatable quality, you should tighten the geometry around that pallet and accept the narrower use range.
How cargo height and pallet size change the answer
Crossmember alignment cannot be separated from overall stack height. If the cargo plus pallet height is too tall for the chosen stacking pattern, the top unit may sway even if the bottom support is correct. If the pallet footprint is changed from 1100 x 1100 to another size, the bearing points move too. That means the rack design, the fork entry, and the stacking clearance all need to be reviewed again.
In practice, the customer should specify four things together: pallet size, support-foot location, cargo height, and the number of stacking layers. That is the cleanest way to avoid the common mistake of matching the outer frame first and the load path later.
This is a project detail, not a universal standard
Rerack is built for custom engineering, not for one fixed catalog geometry. The same product family can be tuned for temporary warehouse layouts, returnable steel stillage loops, and palletized goods that need nested empty returns. But the exact crossmember placement in Project 14346 should not be copied into every order without checking the pallet drawing.
Use this rule instead: if the pallet feet are known and stable, align the crossmembers to them. If the pallet pool is mixed or the support pattern is uncertain, widen the engineering window and test the actual pallet before freezing production. That is how you protect both the product and the load.
Need the rack built around your pallet drawing, not around a generic outline?
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