How to Choose Beam Length and Spacing
If you are ordering pallet racking, you have probably considered “How long should my beams be?” By the time you’re installing the racking, you’ll definitely have asked “What are my beam level heights?”
Determining beam length and spacing is not very complicated once you’re aware of the main factors. Let us explain.
Simple Beam Length Equation
For typical configuration of selective pallet racking, your beam should be long enough to support two pallets, plus 6” between pallets, plus 3” to 5” spaces between each pallet and the adjacent upright.
Beam Length ≥ 2 x (loaded pallet width) + 6″ + 2 x (3″) OR 2 x (loaded pallet width) + 12″
Why do I need spacing between pallets?
Spacing allows for easier loading and unloading of racks. You don’t want pallets to be touching other pallets. Contact between pallets makes movement unpredictable. It can lead to stuck loads, or even dislodged pallet racking components.
What if my product load overhangs the pallet?
Often loads will overhang the pallet. Make sure you are measuring the total load width, not just the pallet. Use a measure that is the consistent maximum width.
Why is the 96” beam so common?
The 96” beam is by far the most common beam length. It is designed to hold two 40” wide standard pallets, with more than the minimum spacing. That’s because the manufacturers know there is a lot of variability in load widths.
We recommend 96” beams for pallet loads up to 42” wide. If you exceed that consistently, you will want longer beams.
Simple Beam Spacing Equation
Vertical spacing should be at least the loaded pallet height, plus the thickness of your beam, plus 4” of lift-off clearance. 6” is a more comfortable clearance allowance.
Vertical Spacing (top-to-top) ≥ (loaded pallet height) + (beam thickness) + 4″
Is 4” really enough vertical clearance above my load?
Yes, 4” should be sufficient, but any less will make loading very tough. We recommend 6” because the odd tall pallet may create a problem. Also, higher levels are harder to see and load than the lower levels. If you have any room for additional clearance, the higher levels will benefit most.
Why does the beam level measure from top of beam to top of beam?
Often you’ll hear pallet racking professionals say “Top-to-top beam height.” If you get used to this convention, you’ll be able to understand any drawings and give instructions much easier.
We measure this way because it is much less confusing. Beams of different thicknesses can be installed to match the same height at the top, but usually not at the bottom. And since the top-of-beam will always be consistent with the upright’s hole increments, the numbers are much easier than if we measured to the bottom-of-beam.
However you choose to measure, just don’t forget that the beam thickness takes up space and you need to add it to the equation.
Beam Length and Spacing Conclusion
Beam length and spacing have a big affect on your racking’s usability. Take some time to examine your product and be confident that your racking will be ample enough to support your valuable products.