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Guiding Light: Mastering Interior Lighting Design with Essential Thumb Rules

Whether be it a natural or artificial lighting, designing illuminations for a space is both an amenity and necessity. In view of the extreme variability of different methods and strategies to light up a space, the designer must have an established knowledge regarding the standard distances of lighting fixtures in order to provide sufficient lighting design for the users.


Worry no more, because the following information are guiding light into designing your own interior spaces!


Lighting Fixture Spacing and Mountain-Height Relationship

The table below shows the spacing and mounting-height of the relationship of luminaries for illumination uniformity. For example, given the ceiling height of 8-feet (2.4 meters), its luminaries must be at a distance of 2-feet from the walls. While its maximum spacing of luminaries must be 9-feet wide.


When the space needed a general diffusing lights, its mounting height relationship is also indicated. For example, given the 20-feet or more ceiling height, the mountain-height of the lighting fixture must also be placed 2-feet high.



From the cozy ambiance of 10 feet between luminaries in figure (a) to the expansive glow spanning 20 feet in figure (b), contrastingly, we unveil the secrets behind maximizing the aesthetic appeal of your interior lighting design. This is an example of an exploring the perfect balance between warmth and spaciousness as we shed light on the artful arrangement of fixtures.


This insightful illustration below showcases the spatial considerations and lighting dynamics in a space where the glow emanates predominantly from one side. Embark on a visual journey through the art of lighting design with our illuminating figure—a section through a unilaterally lit room that unveils the thoughtfully assumed dimensions. The dimensions depicted in this figure serve as a comprehensive guide, offering a blueprint for both unilaterally and bilaterally lit rooms.


Also, these plans provide the details, expressing window width as a percentage of the total room length. The section plans of window walls showing window width expressed as a percentage of total room length. Given the 30%, 60%, and 90% with respect to the total room length.


As you explore the window wall plans, observe the deliberate choices made in determining the width of the windows in relation to the overall room length. The percentages assigned to each window offer a clear visual representation of the thought process behind achieving optimal natural illumination.


Sample bathroom plans with lighting design principle



Written by: Queen Vhylette Orbillo (07sketches)




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