Measure each run and account for sag or zigzags, then check the exact set's outdoor rating, wattage and maximum connected length. Use a GFCI-protected outdoor outlet and follow the product instructions for support, connections and weather exposure. Compare bulb types in our LED vs incandescent event light guide.
String lights are the cheapest way to transform an outdoor space. Plan the layout and power before you buy.
Bulb shapes
| Bulb | Look |
|---|---|
| G40 globe (1.5 inch) | Classic café string |
| G50 globe (2 inch) | Larger, bolder |
| S14 | Edison-style, vintage |
| Fairy and micro | Fine wire for tables and backdrops |
How much you need
| Layout | Footage |
|---|---|
| Perimeter only | Perimeter + 10 percent |
| Parallel runs | Number of runs × length + 50 percent for swag |
| Zigzag | Diagonal length × number of passes + 50 percent |
Install and power
- Run a steel guide wire for spans over about 20 ft and clip lights to it.
- Use poles with weighted bases where there are no walls or trees.
- Plug into GFCI-protected outdoor outlets and keep connections off the ground.
- Respect the maker’s maximum connected run; split into several circuits for big layouts.
- Keep lights clear of tent fabric seams and heaters, per the party tent guide.
Pair with a portable PA speaker. For the bulb-type decision, see LED vs incandescent event string lights. Browse light, sound and photo.
Common questions
How many feet of string lights do I need?
Measure each run and add about 50 percent for swag and zigzag layouts. A 20 × 40 ft area crisscrossed four times needs roughly 150 to 200 ft.
How many light strands can I connect?
Follow the maximum printed on the packaging or tag. LED strands typically allow many more connected than incandescent.
Are string lights safe in the rain?
Only if rated for outdoor or wet use. Keep plugs off the ground and use GFCI-protected outlets.
What bulb shape is most popular for weddings?
Round G40 globes and S14 Edison-style bulbs are the most common choices.