Ladders Aluminum Ladders We will build cage ladders, ship ladders, and access roof ladders to your specifications. We can detail ladders for field approval. Please call Indiana Gratings for your next ladder need.     Computer Aided Design for a caged ladder system (Click to enlarge) Aluminum Ship Ladder fabricated by Indiana Gratings Inc. Fiberglass Ladders We will build cage ladders and access roof ladders to your specifications. Please call Indiana Gratings for your next fiberglass ladder.