Balco Trench and Access Covers provide easy access to sub-floor utilities and services for maintenance of plumbing, electrical, and other buried equipment in buildings like hospitals, schools, laboratories, refrigeration sections of supermarkets and warehouses, etc. Trench covers are linear and can run in multiple directions, provided with corners, tee conditions, and four-way junctions. Access covers are individual square units for direct access to maintenance valves, joinery and controls.