Door with frame made entirely in INOX 304 or 316, with modular fixing holes to make assembly and installation simple and practical. The columns contain: polizene rail with a special aluminum support fitted with rubber gasket designed to follow the PVC expansion adjustment and to ensure excellent wind resistance; columns that have an inspectionable cover, holding power cables with Plug&Play connectors, screws are fixed inside in hidden position. Externally it is possible to install a pair of photocells or a barrier. The side engine include a cover made in INOX and a plate motor protection that heats in order to protect the engine against low temperatures. All fixing plates and bolts are made of INOX. The 900gr PVC is welded with reinforcements and compensators according to size and use. The door is supplied pre-assembled so during installation it is sufficient to fasten the box, the vertical columns and is ready for the final test.