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As doors seemingly get larger and larger one method to successfully engineer them has been to clad them with lighter materials including uv resistant PVC plastic fabrics. Large fabric doors also provide the advantage that when in the raised position they have a smaller footprint than alternative designs. Leda currently has six “fabric” doors like the one pictured being manufactured for a North Queensland mining site. Even these lighter weight doors still need to be engineered to meet the strong wind loadings encountered in the region as these support trussels pictured demonstrate.
