Guide to Pallet Rack Safety

Material Flow pallet racks are engineered for long service life.  The following is a guide to Material Flow’s recommendations for determining load requirements and optimal operating conditions for years of safety and trouble-free service.

Frame Depth

Pallets have a recommended overhang of 3″.  For pallets 48″ deep, we recommend a frame depth of 42″.

Frame Height

The height of your pallets must be taken into consideration when determining load heights. For lower-level storage, allow 4″ minimum clearance between the top of your load and the bottom of the next highest beam.  For higher loading levels, allow 6″ minimum clearance.  Allow a minimum of 18″ (or as required by local codes) between the top of your uppermost load and the ceiling sprinkler units.

Beam Length

Allow a clearance of 4″ between palletized loads, as well as between loads and uprights.  There should be a minimum clearance of no less than 3″ between loads and upright posts.  To maintain proper spacing, beams with a length of over 120″ should be tied together with the appropriate front-to-back bar.

Back-To-Back Clearance

Where pallet placement may vary, sufficient clearance is required to accommodate minimum pallet overhang and tolerances.  Building structures, intermediate sprinkler systems, and local codes must be taken into account, and may necessitate additional clearance.

Installation and Anchoring

Racks must be plumb, level, and properly anchored in order to insure minimum stability standards.

Additional Precautions

Where above-average rack abuse is anticipated, additional precautions should be taken.  Material Flow recommends additional rack reinforcement in the case of narrow aisles used for high speed or high inventory turnover positions.  Material Flow also advises impact supports and aisle guidance devices, especially at aisle intersections and other high-risk locations.