Golden Ratio Design – Interior Window Dimensions
Release date:
2025-09-01
At the same time, note that there is a distinction between the outer dimensions of the door and window frames and the actual dimensions of the door and window openings. The opening dimensions refer to the size after plastering during construction, while the frame dimensions represent the finished, manufactured size of the doors and windows themselves. To determine the outer frame dimensions, simply subtract about 2 cm from each side—top, bottom, left, and right—of the opening size. These 2 cm are预留 for installing the door or window frame. Additionally, ensure the gap between the frame and the opening does not exceed 3 cm, but remains comfortably above 1.5 cm.
Anyone with a bit of common sense knows that window sizes are determined by the specific dimensions of the wall, the room's orientation, and the level of natural light it receives. At the same time, windows vary from room to room—kitchens, bathrooms, and living rooms, for instance, all have different window sizes. Even in villas, windows like floor-to-ceiling designs differ significantly from standard ones.
In typical residential buildings, window height is 1.5 meters, with the windowsill positioned approximately 0.9 meters above the floor and the top of the window about 2.4 meters from the floor level. If the windowsill is lower than 0.8 meters, it’s important to implement appropriate safety measures. Window widths usually start at 0.6 meters and can extend wide enough to create a "window band"—a continuous, full-width window. However, when using such wide window bands, soundproofing between adjacent rooms becomes a key consideration. Additionally, if sliding windows are chosen, you’ll need to account for the sliding range of the window sashes.
Window sizes vary from room to room; below are some typical window dimensions for different spaces.
Living room: 1.5m × 1.8m to 1.8m × 2.1m
Medium-sized bedrooms: 1.2m x 1.5m to 1.5m x 1.8m
Large bedroom: 1.5m × 1.8m to 1.8m × 2.1m
Bathroom: 0.6m × 0.9m to 0.9m × 1.4m
The size of living room windows also varies—especially when it comes to floor-to-ceiling windows, which can differ significantly. Typically, in residential settings, window sills are finished at around 90 cm in height, while the windows themselves usually measure between 145 cm and 155 cm. However, for floor-to-ceiling windows, the sill is typically about 20 cm above the floor level, with the exact width depending on the specific design or layout.
The bathroom window is positioned about 1 meter above the floor, with window heights ranging from 1.2 to 1.4 meters. Occasionally, developers install windows slightly higher off the ground, which would naturally reduce the overall window height. As for width, windows typically measure between 0.8 and 1.2 meters.
At the same time, note that there is a distinction between the outer dimensions of the door and window frames and the actual dimensions of the door and window openings. The opening dimensions refer to the size after plastering during construction, while the frame dimensions represent the finished, manufactured size of the doors and windows themselves. To determine the outer frame dimensions, simply subtract about 2 cm from each side—top, bottom, left, and right—of the opening size. These 2 cm are预留 for installing the door or window frame. Additionally, ensure the gap between the frame and the opening does not exceed 3 cm, but remains comfortably above 1.5 cm.
Alright, that's all for the brief introduction about indoor window sizes.
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