Cap Barbell Three Tier Dumbbell Rack - Shipping Included. Authorized CAP Barbell Dealer. The CAP Barbell Three Tier Dumbbell Rack is a 48 inch long triple-tier rack that holds 5 to 50 pounds of 12 pair hex dumbbells or 9 pairs of pro-style dumbbells. Built with 12-gauge steel, a powder coated finish and angled lower level for easy lifting.... click to read more