Tree strand count
Estimate mini-light strands for wrapping a tree from height and wrap density (feet of lights per foot of height).
total_light_feet = tree_height × wrap_density · strands = ceil(total_light_feet ÷ strand_length)
When to use
Use this page when you need a transparent tree strand count estimate before you buy décor or hang lights in Prince William County. You will enter tree height (feet), wrap density (light-feet per height-foot), strand length (feet), and number of similar trees.
Estimate mini-light strands for wrapping a tree from height and wrap density (feet of lights per foot of height). Read the formula and worked example so the number is arithmetic you can check — not a guess from last year.
If a product package publishes its own coverage chart, keep that chart in the loop — this tool is the independent check.
Sparse ~50–75, classic ~100, dense ~150–200+ for outdoor trees.
Worked example
Example defaults: tree height 8 ft, wrap density 100 light-ft per height-ft, strand length 25 ft, trees 1.
Light feet per tree = 8 × 100 = 800 ft. Total = 800 × 1 = 800 ft. Strands = ceil(800 ÷ 25) = 32.
Density is a style choice — start lower outdoors only if the tree already reads bright from the curb.
Limits / assumptions
Assumptions: inputs match the hints (measured eaves, nameplate watts, package strand length, and so on). Terms not named in the formula are not secretly included.
Limits: outdoor weather, GFCI trips, and real stock sizes vary. Prefer outdoor-rated cords and clips; ladder and roof work need their own safety practices.
Responsibility: confirm safety-critical electrical and height decisions with manuals and, when needed, a qualified professional. PWC Lights does not stamp displays.
FAQ
What wrap density should I use?
Indoor trees often look full around 100 light-feet per height-foot; outdoor trunks/branches may need more for curb visibility.
Does trunk wrapping use the same math?
Roughly — measure the lighted height and pick a denser wrap if you spiral tightly.
Should strands be end-to-end?
Stay within the manufacturer’s max connections and outlet load; split feeds on large trees.
What about bush nets instead?
For shrubs, try the bush net count calculator instead of spiral wraps.