The Total Structures' Outdoor Stage Roof Design is now the world wide industry standard, with systems in every major country. The flexibility in the concept makes it the most versatile. expandable roof system in the market today. A typical structure has a perimeter grid made up of standard truss which would usually be 10ft sections, although other modules can be accomodated. The width and depth of the roof is determined by the number of modules in each direction. The maximum allowable span is 80ft (larger custom construction can be achieved), cross the stage with virtually no limit on the depth. The roof is formed by constructing a matrix of ladders and truss which make a series of identically sized bays inside the structures. It is this feature which gives rise to massive point load capacities anywhere under the grid.