Profile: Illinois Engineered Products produces galvanized steel folding gates. Our product line comprises of single steel folding gates, folding doors, pair folding security gates and barrier gates. Our single steel folding gates are designed to secure dock, receiving, garage and service doorways, hallways & entranceways up to 12 feet wide. Our folding door gates are ideal for providing access control and security for entryways up to 4 feet wide.