Since 1951, Criterion Products, Inc. has been manufacturing folding gates, tarps, and truck accessories in Los Angeles, California. Criterion has become a name synonymous with quality, service and experience. We offer 3 series of folding gates to meet the needs and budgets of each building owner or tenant. Whether to satisfy the demanding requirements of heavy industrial settings or the economy desired by the most cost conscious buyer, Criterion has a gate suitable for most any application. More than 50 years of product design and manufacturing experience enable us to provide custom products to comply with special design and unique installation requirements.