Number of Christmas Lights for Most Houses
If you want Christmas lights on your home displayed in that classic manner—on the eaves’ fascia—purchase the following.
For Front Only
Use two strands of 32-foot mini lights, for a total of 200 lights, for either an average- or small-sized house. If you prefer the larger-bulb C9 lights in 16-foot lengths, double the number of strands. So, you would use four strands of C9s, for a total of 100 lights. The C9 strands come with a quarter to half as many bulbs as the mini lights, depending on length. Though fewer in number, C9 bulbs are far brighter than mini lights.
For Front and Two Sides
Average House: Use four strands of 32-foot mini lights, plus two strands of 14-foot mini lights, for a total of 500 lights. For C9 bulbs, you can use 10 of the 16-foot-long strands.Small House: Use four strands of 32-foot mini lights, for a total of 400 lights. For C9 bulbs, use 7 of the 16-foot-long strands.
Large Projections
If the front or sides have large architectural details like awnings, cupolas, and gables add another 10 feet per detail.
Popular Christmas Lights and Coverage
Number of Lights Needed for Outdoor Features
Bushes and Hedges: One to two 4-foot by 6-foot light nets per bush or hedge. Trees: One 32-foot strand (100 lights) for every 1 1/2 vertical feet of an evergreen tree; or, about 500 to 600 lights for an 8-foot tree. Windows: One 16-foot strand per single-width window. Doors: One 16-foot strand per door. Window Boxes: One 14-foot strand of 50 lights per window box. Columns and Pillars: One 32-foot strand of 100 lights per 7 vertical feet of column or pillar. Deck Railings: Measure the deck railing and use that measurement to determine how long the lights should be. If you plan to wrap the lights rather than use clips, you will lose about 1 foot. So, add an extra foot.
Number of Lights for a Christmas Tree
Underestimating the number of lights on the Christmas tree results in a dark, drab tree. Too many lights overloads the tree and detracts from ornaments and the tree itself. The easy rule of thumb is to use one strand of lights (100 lights) for each vertical foot of the Christmas tree. If you like a slightly brighter tree, you don’t need much more: Just add one more strand.