Author: Haroon Khalil
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Step Proportions
All the risers and treads should be of uniform dimensions. The steps should neither be too wide or too short. Further high rise may cause inconvenience and fatigue to the user. The following empirical rules may be followed: For residential buildings, the common size of step is 15 × 28 cm. Rise greater than 20…
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REQUIREMENTS OF A GOOD STAIR
A well-planned and designed stair should be comfortable, quick, safe and easy to use. Different aspects which are to be considered in the planning and design of stairs are discussed below. Location The location of stairway should be so chosen such that sufficient ventilation and light should be available. If it is feasible, it may…
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COMPONENTS OF A STAIRCASE
The space occupied by the stairs is called a staircase or stairwell. Various components of a stair are shown in Fig. 21.1 and also defined below. 1. Baluster It is a vertical member supporting the handrail. 2. Flight It is a series of steps without any break such as a platform, landing, etc. 3. Tread…
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INTRODUCTION
A stair is a sequence of arrangement of steps which is provided as a means of easy ascent and decent between the floors or landings. Stairs are of different types which are designed and used based on the location and usage. Stairs are provided in almost all types of buildings starting from residential building to…
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VENTILATORS
A ventilator is a narrow window of small height which is generally fixed at the top of door or window or near the roof of a room for providing ventilation in the room. Ventilator may be fixed which provides only light, whereas the movable ones provide light and air circulation. Ventilators are provided with glass…
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Standard Sizes of Windows
In a building, the top of the doors and windows are placed at the same level. Thus the height of a window depends on the height where the window sill has to be fixed based on the circulation needed inside the building. Width of windows depends on the opening required. The 10 WT 12 designation…
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Types of Windows
Different types of windows are discussed below. 1. Casement Windows Casement window is one in which the shutters open like doors. This window comprises of a frame consisting of styles, top rail and bottom rail. Window frames are made similar to frames of doors but all the windows are provided with sill at the bottom.…