DeMarco Collection Custom Windows is a full line of high performance Simulated Divided Light (SDL) Windows built to your specifications. Our SDL custom windows are 3/4" dual pane insulated glass (1/2" spacer, 1/8" clear glass, 1/8" PP2 Low E glass) for optimal performance. We also use hurricane impact glass for our coastal clients. We offer our custom wood windows as a true push out casement, crank out casement, or French casement, and fixed custom windows in any shape or size. Our custom wood window frames are constructed of Honduras Mahogany, and come unfinished, or finished to your specifications.