Lawn & Park Benches in Iowa (IA) on ThomasNet.com Results 1 - 9 of 9 . Manufacturer* Custom manufacturer of lawn & park furniture including benches. Bench materials include cast iron, steel, recycled plastic, aluminum or wood. Types of benches include channel, athletic, trailside, contour, classic & double pedestal benches. Optional custom plaques, signage & bench arm..