This document discusses different types of doors and windows. It describes common materials used for door construction like timber, plywood, glass, and metal. It also discusses factors to consider when selecting doors like strength, durability, and cost. The document classifies doors based on their arrangement of components and manner of construction. It describes different types of windows like fixed, pivoted, double hung, sliding, casement, sash, louvred, metal, bay, corner, dormer, gable, and lantern windows. It also discusses ventilators, fanlights, skylights, and shades for windows.