How It's Made — Season 21 USA Network Ended 13 Episodes · Premiered April 4, 2013 · Ended August 1, 2013 ← Season 20 All Seasons Season 22 → Episodes E01 Rubber Gloves, Soap Carvings, Aircraft Cabinets, Motorcycle Brake Locks Fri, Apr 5 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E02 Powder Horns; Handcrafted Molds; Perogies; Inner Tubes Fri, Apr 12 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E03 Lace, Antique Frame Replicas, Orchids, Unicycle Wheel Hubs Fri, Apr 19 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E04 External Hard Drives, Frozen Shrimp, Thai Rice Boxes, Paper Towel Fri, Apr 26 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E05 Tea, Roof Finials, Artificial Flowers, Alloy Wheels Fri, May 3 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E06 Gel Caps, Playground Spring Riders, Frozen Pancakes, Natural Rubber Fri, May 10 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E07 Paper Umbrellas, Coal, Aircraft Seats, Urns Fri, May 17 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E08 Aluminum Canoes/Wood Bowls/Wheelchair Accessible Vans/Marimbas Fri, May 24 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E09 Indy Car Seats, Paper Flowers, Stand-by Generators Fri, Jun 21 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E10 Knee Replacements; Leaf Springs; Lavender Oil; Rivets and Rivet Tools Wed, Jul 10 2013 1:00 AM GMT+0000 30 min ▶ Discover how customized knee replacements and leaf springs are made. E11 Cast Iron Stoves; Ultralight Aircraft; Snow Groomers; Rubber Bands Fri, Jul 19 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E12 Barber Chairs; Sewage Pumps; Bimini Boat Tops; Diesel Filters Fri, Jul 26 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. E13 Car Tires; Silk; Art Conservation; Scuba Tanks Fri, Aug 2 2013 1:00 AM GMT+0000 30 min ▶ No synopsis available. ← Season 20 All Seasons Season 22 →
