Strongest steel barrier rail available, capable to withstand a 13,000 lb. load impact traveling at 4 mph. without fail (1/2" x 5" anchors required). Protects work areas and personnel saving on reduced time and workers comp claims. Corrugated 11 ga steel guard rails available in 2'-10' lengths in one-foot increments (measured center of column to center of column). Includes hardware pack. Gates and Lift out rail options available.