Rack Safety Netting: The Ultimate Engineering Guide to Pallet Fall Prevention, Flue Space Compliance & Warehouse Risk Mitigation

Rack safety netting is manufactured from high-tenacity synthetic yarns (such as UV-stabilized polypropylene or high-tenacity polyester) designed to stretch and absorb dynamic kinetic impact through elastic elongation. This dynamic deceleration prevents dangerous recoil and avoids transferring high point-load shear forces into rack upright columns.

Wire mesh panels provide rigid physical containment but add significant dead-weight load onto the rack structure (1.8 to 3.2 lbs/sq.ft compared to <0.12 lbs/sq.ft for netting). Wire mesh can also experience localized weld failure when impacted directly by pallet forks, creates sharp cut hazards, and incurs substantial shipping and rigging costs compared to compact rolls of engineered netting.

OSHA regulates warehouse falling-object hazards under General Duty Clause Section 5(a)(1) as well as 29 CFR 1910.176(b), mandating that stored materials must be secured against sliding, falling, or collapsing into working aisles. Rack safety netting provides compliant physical containment across upper racking levels, pick tunnels, and emergency egress routes.

For fire safety, NFPA 13 requires a minimum continuous 6-inch longitudinal flue space between back-to-back rack runs to allow early vertical heat venting and uninhibited sprinkler water penetration. Flue netting barriers prevent pallets from being pushed past the rear beam face into this vital flue zone while presenting virtually zero obstruction to sprinkler spray cone patterns, satisfying insurance auditors such as FM Global.

Yes. UNARCO RACKING supplies modular bracket systems that mount cleanly into existing teardrop or keyhole frame punches, or clamp around structural steel columns without requiring field drilling, cutting, or welding. Because structural rack uprights are not structurally compromised, factory load certifications and RMI engineering compliance remain completely intact.

Netting capacity is evaluated in foot-pounds (ft-lbs) of dynamic kinetic energy rather than static weight alone. For split-case pick modules and carton containment, ratings typically range from 1,250 ft-lbs to 2,500 ft-lbs with a dense 1" to 2" mesh aperture. For heavy pallet loads (2,000 to 3,500 lbs), systems should be specified for 5,000 ft-lbs to 10,000+ ft-lbs ratings utilizing heavy-gauge borders, steel turnbuckles, and tensioned 3/16" or 1/4" aircraft wire rope.

UNARCO RACKING specifies high-performance virgin polymers engineered specifically for harsh industrial atmospheres. In cold storage and deep-freeze operations (-40°F / -40°C), our knotless polypropylene netting maintains flexibility without embrittlement or micro-fracturing. The synthetic fibers are chemically inert, moisture-resistant (preventing rot and mold), and UV-stabilized against artificial and natural light degradation.

To provide an accurate engineering proposal, please prepare your racking elevation drawings or bay dimensions (upright height and beam length), pallet weight specifications, required standoff offset distance (for pallet overhang), whether flush or back-to-back flue mounting is needed, and special environment parameters (such as cold storage or seismic design category). Direct inquiries can be forwarded to [email protected].