When it comes to calculating the space between lights, there are a few things that you need to take into account. First, you need to determine the type of light fixtures that you will be using. This is important because different types of light fixtures require different spacing between them. For example, recessed lights should be spaced about 4 inches apart, while pendant lights can be spaced further apart. Once you know the type of light fixtures you will be using, you can then start to measure and calculate the space between them.
In general, it is recommended that you space your light fixtures about 2-3 feet apart from each other. However, this number can vary depending on the size and power of your light fixtures. If you have larger or more powerful light fixtures, then you may want to increase the distance between them accordingly. Conversely, if you have smaller or less powerful light fixtures, then you may want to decrease the distance between them slightly.
Once you have an idea of how far apart your light fixtures should be spaced, simply use a tape measure to get an accurate measurement. Then, divide this number by the total number of lights that you plan on installing in order to get an evenly spaced out result. For example, if your room is 10 feet long and you want four evenly spaced out recessed lights installed within it, then each fixture would need to be spaced about 2 1/2 feet apart from each other (10 feet / 4 lights = 2 1/2 feet).
As long as you take care in measuring and calculating the space between your lights accurately, spacing them out evenly should give your room a well-lit and polished look!