SIENA style aluminum frame doors available in Natural (aluminum) finish and a full range of available inserts. The dimensions of the frame outlined on the drawing. This type of frame is referred to as wide aluminum frame; therefore it requires a standard hinge with 35mm cup. All doors are assembled with special steel corner brackets that need to be taken in consideration when locating a hinge hole as no drilling should be done within corner bracket areas; otherwise hinge holes can be pre-drilled in any required areas. All assembled doors come with concealed gasket that provide protection when the doors are slammed and also offer tighter assembly of the inserts.