Landscape Lighting Wire Size

Spring is in the air. The days are getting longer now that daylight savings time has started. With the sun out, you may have rediscovered your yard. It is, again, comfortable to sit outside. Until the sun goes down and you realize it still gets dark sooner than later. There is a solution for that!

If you are ready to put your back into it (or the professional’s back), you can add landscape lights easily and completely transform your yard.

Design Goals

You’ll first need to establish the feel you are after. Is there a path that needs to be emphasized, or a shadowy corner that needs to be lit for security? Maybe there are features you want to highlight.  Would you like a soft light environment or do you want to have a better lit outdoor dining table or seating arrangement?

LSC4501_01_CleanNow that you have a better understanding of your needs and wishes, sketch your yard. Locate existing lights and all vegetation and other features.  With your lighting intentions in mind, determine where to locate the new light fixtures.

Landscape Lighting Wire Size

Establish how many runs and how many fixtures you have. Now you can take a look at landscape lighting wire sizes. To determine which landscape lighting wire size to use, follow these steps:

  • Add all individual bulb wattage to find the total wattage per wire run.
  • Measure the total lengths per wire run.
  • Multiply total wattage by total length.
Total Cable gauge to use
10,000 or less 12 AWG
10,001 to 15,000 10 AWG
15,001 to 25,000 8 AWG
25,000 or more Split the run into 2 runs and recalculate

Now that you know what landscape lighting wire you need, and you have your design in hand, you can start your dream yard project. Enjoy!