Heavy-duty welded steel construction for protecting racks, building walls, expensive equipment, and hundreds of other applications. All 42" high units include a 21" mid-rail to comply with OSHA requirements. Two (2) base plates with (4) pre-drilled mounting holes in each plate. Additional sizes available. FOB Shipping Point. Due to tariffs and market conditions, pricing subject to change. See Related Items tab for Anchor Bolts.