There is nothing like standard sizes but only recommended ones. You can get some idea on how the sizes are different.
Standard size of living room: the standard size of a drawing room should be as below –
- Small: 12′ x 18′ (3600mm x 5400mm)
- Medium: 16′ x 20′ (4800mm x 6000mm
- Large: 22′ x 28′ (6600mm x 8400mm)
Standard size of kitchen room: Although some prefer to make a big kitchen room, the standardsize of it is,
- Small: 5′ x 10′ (1500mm x 3000mm)
- Medium: 8′ x 13′ (2500mm x 3900mm)
- Large: 10′ x 12′ (3000mm x 3600mm)
Standard size of master bed room: Master bed room should be bigger in size than other bed room. The standard size is,
- Small: 12′ x 14′ (3600mm x 4200mm)
- Medium: 14′ x 20′ (4200mm x 6000mm)
- Large: 16′ x 24′ (4800mm x 7200mm)
There is no standard size for stairs as they are dependent on the space available and the design you want to include.
Standard size of drawing room may range from: 4200mm (14ft) X 4800 mm (16ft) to 5400mm (18ft) X 7200mm (24ft)
Standard size of bedrooms may range from: 3000mm (10ft) X 3600mm (12ft) to 4200mm (14ft) X 4800mm (16ft)
Standard size of guest rooms may be: 3000mm (10ft) X 3600mm (12ft)
Verandah have width ranging from 1800mm (6ft) to 3000mm (10ft)
Standard size of office room may be: 3000mm (10ft) X 3600mm (12ft)
Standard size of kitchen rooms may range from: 2500mm (8ft) X 3900mm (13ft) to 3000mm (10ft) X 3600mm (12ft)
Standard size of store room may range from: 2500mm (8ft) X 2500mm (8ft) to 3000mm (10ft) X 3000mm (10ft)
Size of pantry may range from: 2500mm (8ft) X 3000mm (10ft)
Common sizes of bathroom and water closet may be:
Bath and WC (combined): 1800mm X 1800mm to 1800mm X 2500mm
Bathroom (separate): 1200mm X 1800mm
WC (separate): 1200mm X 1200mm