How Many Recessed Lights Per Square Foot

Once you know how many lights are needed you can decide on a layout and calculate their placement.

How many recessed lights per square foot.

In the first step of your calculations you need to choose the type of area and activity that you want to illuminate. Result may defer according to spacing layout of led lights and position from wall. For general lighting purposes you ll want to provide 1 5 watts of lighting per square foot of space in the room. Commercial spaces like retail stores can utilize many of the same light types but they may not require the same number.

Use this rule as a base line though. For instance an 8 foot wall would require lights to be mounted 2 feet out from the wall. In these spaces you ll want to look for shop lights wraparound lights led troffers and high bay lights that have higher output. How many lumens per square foot do i need.

The recessed light in the center its dimensions will be vertically 15 2 7 5 feet horizontal 10 2 5 feet. The required total wattage will be 150 2 300 watts 2 is the average wattage per foot square. If the ceiling is 10 feet you ll want to put about 5 feet of space in between each fixture. To determine how far apart to space your recessed lights divide the height of the ceiling by two.

Tip always use at least two recessed lights even if the calculation calls for only one and choose bulbs. This lumen calculation formula is using predefined standard lux levels required for different room types. Determining how many recessed lights a room needs is one of the first steps when planning the lighting for a room. And the wall is the same as the distance between the last one and the other wall in the horizontal rows 5 2 2 5 feet.

You can use the calculator on this page to get an idea of how many lights a room will need. So to get the number of lights you ll need in the room first measure to get the room s square footage. If a room has an 8 foot ceiling you should space your recessed lights approximately 4 feet apart.