While there is no one-size-fits-all answer for how high pallet flow rack can go, let’s look at the major variables that are taken into consideration when designing a racking system for pallet flow.

Major Variables in Determining Pallet Flow Rack Height:

Building Parameters

Load & System Variables

Pallet Load Weight

Pallet flow racking

Pallet flow rack height is determined by three factors: building parameters, load and system variables, and pallet load weight.

Building Parameters – To determine the optimal height, and therefore levels of the system, we start with the building itself. The ceiling height, building specs (including obstructions such as light fixtures, sprinkler system, ventilation), and fire code regulations are all considered in the design engineering.

Load & System Variables – The next step is to look at the load and system variables. Using your largest load, identify the depth, width and height.

To further define the height, now add 6” to include your pallet and another 6” for “lift-off”, the amount of space needed for forklift outriggers to insert and extract a pallet. This will give you the level height.

Now comes the challenge that makes pallet flow more unique vs. standard pallet rack; we still have to determine the pitch. The pitch will define the rear beam elevation. There’s no rule of thumb regarding pitch as many variables come together to define the final recommendation.

Load Weight – There’s one more critical variable that has impact on pallet flow rack system specs, and that’s pallet load weight. It has direct bearing on track selection, pitch, controllers and overall system capacity. The typical beam can hold about 3,000 lbs. per pallet, and most often, beams are two pallets wide allowing for about 6,000 lbs. per level.

It may seem counterintuitive, but because the beams act as upright supports, the tighter the beam spacing, the denser the design and stronger the rack bay. So a 6-level high rack structure with 5 beams is going to be stronger though it is supporting more overall weight, than a 5-level high rack with 4 beams even if they are the same height.

Pallet flow rack load weights

Pallet load weight has direct bearing on track selection, pitch, controllers and overall system capacity.

Once we have determined our load height, load weight, pitch and how the system will be designed to fit into the building space, we can start stacking! Add each level on to the next to determine maximum allowable system height.

Hopefully this provides insight as to how pallet flow rack height is determined. Let us know your specs, and we’ll help you design your next gravity flow storage project.

Get in Touch with Advanced Handling & Storage

If you want to maximise your warehouse space through the use of second hand or new pallet racking, please don’t hesitate to get in touch with us on 0800 345 7088 or send an email to [email protected]

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