What Are The Most Common Solar Tube Sizes?

Solar tubes, also known as tubular skylights or sun tunnels, are used to bring natural light into interior spaces. They come in various sizes to suit different lighting needs and architectural requirements. The most common solar tube sizes are typically based on the diameter of the tube, which determines the amount of light that can be transmitted. Here are the most common sizes:

1. 10-Inch Diameter Solar Tube:

Application: Ideal for small spaces such as bathrooms, closets, hallways, and small kitchens.
Light Output: Can illuminate an area of approximately 100 to 200 square feet.
Popularity: This size is one of the most popular for residential use due to its balance between size and light output.

2. 14-Inch Diameter Solar Tube:

Application: Suitable for slightly larger rooms such as bedrooms, larger bathrooms, kitchens, and living rooms.
Light Output: Can illuminate an area of approximately 200 to 300 square feet.
Popularity: This size is commonly used in residential settings for areas that require more natural light.

3. 18-Inch Diameter Solar Tube:

Application: Designed for larger spaces such as open-plan living areas, large kitchens, or commercial spaces like offices and retail stores.
Light Output: Can illuminate an area of approximately 300 to 500 square feet.
Popularity: Used in both residential and commercial applications where a higher level of natural light is desired.

4. 21-Inch Diameter Solar Tube:

Application: Ideal for large spaces such as large living rooms, workshops, warehouses, and other commercial or industrial spaces.
Light Output: Can illuminate an area of approximately 400 to 700 square feet.
Popularity: This size is often used in commercial and industrial settings due to its large light output.

5. 24-Inch Diameter Solar Tube (Less Common):

Application: Best for very large spaces such as warehouses, large retail stores, and other commercial or industrial applications.
Light Output: Can illuminate an area of over 700 square feet.
Popularity: While less common in residential applications, this size is used in situations where maximum light is needed over a large area.

Choosing the Right Size:

Room Size: Consider the size of the room and how much natural light you want to introduce.
Roof Structure: The size of the solar tube may also be influenced by the structure of the roof and the available space for installation.
Aesthetic Considerations: Larger tubes may provide more light but can also be more visible and require larger ceiling diffusers.

The most common solar tube sizes are 10-inch and 14-inch diameters for residential use, with larger sizes like 18-inch and 21-inch being more common in commercial or industrial applications. The choice of size will depend on the specific lighting needs of the space and the installation environment.

DIY Or Hire A Professional For Solar Tube Installation?

While installing solar tubing can be a manageable DIY task, most homeowners are not ready for how challenging the installation process can be. You will need to have some experience cutting into both the ceiling and roofing. If the tubing is not installed properly, there is potential for water damage to destroy the roofing. It’s always best to contact a professional for this task.