Recessed Can Calculator

Formula

The formula to calculate the Number of Recessed Cans is:

\[ RC = \left( \frac{A}{S} \right) \times L \]

Where:

\(RC\) is the number of recessed cans needed
\(A\) is the area of the room (square feet)
\(S\) is the spacing guideline (square feet)
\(L\) is the lumens needed per square foot

What is a Recessed Can?

A recessed can, also known as a can light or pot light, is a type of lighting fixture that is installed into a hollow opening in a ceiling. When installed, it appears to have light shining from a hole in the ceiling, concentrating the light in a downward direction as a broad floodlight or narrow spotlight. It is a preferred choice for many due to its sleek, clean look and its ability to blend with the ceiling.

Example Calculation 1

Let's assume the following values:

Area of the Room (A) = 400 square feet
Spacing Guideline (S) = 20 square feet
Lumens Needed Per Square Foot (L) = 30

Using the formula:

\[ RC = \left( \frac{400}{20} \right) \times 30 = 600 \]

The Number of Recessed Cans Needed is 600.

Example Calculation 2

Let's assume the following values:

Area of the Room (A) = 300 square feet
Spacing Guideline (S) = 15 square feet
Lumens Needed Per Square Foot (L) = 25

Using the formula:

\[ RC = \left( \frac{300}{15} \right) \times 25 = 500 \]

The Number of Recessed Cans Needed is 500.