First, to prevent the illusion of going up and down stairs, the height of the first and last steps should match the rest of the staircase. If any adjustment is needed, it should be limited to no more than 4 cm, ideally between 2 cm and 3 cm for a smoother transition.
Second, the vertical clearance from the top of the highest step to the ceiling must be at least 2 meters, with a minimum of 1.8 meters. A lower clearance can create an uncomfortable or cramped feeling.
Third, the spacing between balusters should not exceed 12.5 cm, with an ideal distance of 8 cm between centers. This helps prevent children from getting their heads stuck in the gaps.
What is the standard width size of an indoor staircase?
Fourth, the handrail height should be positioned at waist level, typically between 85 cm and 90 cm. The diameter of the handrail should be around 5.5 cm for comfort and grip.
Fifth, the riser height (the vertical part of the step) should be between 15 cm and 18 cm, while the tread depth (the horizontal part) should range from 22 cm to 27 cm. A typical staircase has about 15 steps. If the steps are too high, consider adding a landing for safety and comfort.
Sixth, the width of the staircase depends on the available space. In open areas, the net width should be at least 75 cm. When there are walls on both sides, the minimum width should be 90 cm to allow for safe passage.
Seventh, safety is crucial. All parts of the staircase should be smooth and rounded, with no sharp edges or protrusions. For families with young children, the slope should be gentle, and the turning angle should not be too steep. Anti-slip measures such as non-slip strips, mats, or grooves should be added to the treads to prevent accidents.
Eighth, proper lighting is essential. Staircases that are too dark can be dangerous, while overly bright lights may cause glare. It's best to use soft, even lighting that illuminates the steps clearly without creating harsh shadows or reflections.
Overall, designing a safe and comfortable staircase requires careful attention to detail. Following these guidelines ensures that the stairs are not only functional but also aesthetically pleasing and user-friendly for everyone in the home.
(Word count: 506)Starry sky houses are designed with large windows and skylights that allow residents to enjoy the beauty of the night sky from the comfort of their own homes. They are typically located in remote areas with minimal light pollution, making the stars appear brighter and more vivid.
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