How To Install String Lights Backyard

How to Hang String Lights Outdoors

Bring a soft, inviting glow to your backyard, porch or patio by installing cafe-style globe lights to twinkle overhead

Lauren Dunec Hoang

May 29, 2020

Houzz Editor; landscape designer and former garden editor for Sunset Magazine and in-house designer for Sunset's Editorial Test Garden. Her garden designs have been featured in the Sunset Western Garden Book of Landscaping, Sunset Western Garden Book of Easy-Care Plantings (cover), Inhabitat, and POPSUGAR.

Nothing beats cafe-style string lights for their ability to quickly improve the ambiance in an outdoor space. In the evening, their soft glow overhead can visually transform an ordinary patio into a party-ready spot for hosting friends or cheer up a dim walkway with an inviting luminescence.

Outdoor string lights are a cinch to put up if you have the perfectly positioned trees or fence. If you don't have trees, a fence or another tall outdoor object, it doesn't take much — just a little more time and a few additional supplies — to set up any outdoor space for cafe lights. Here's how to hang string lights over your deck, patio, balcony, garden or anywhere else you'd like a little extra glow.

Tools and Materials

Commercial-grade outdoor string lights
Outdoor extension cord (if you don't have an exterior outlet where you need one)
Tape measure
Pencil or painters tape
Metal hooks and eyes
Drill
Ladder

For string lights strung over a large expanse:

String light suspension kit (includes wire cable and suspension hardware like turnbuckles, snap hooks, lock clamps and pad eyes with screws )
Wire cutters

For yards without trees or other tall supports:

10-foot-long wooden posts or 10-foot-long metal poles (electrical metal tubing, aka EMT or thin-wall, is available at home improvement stores in 10-foot lengths, which you may need to cut)
Hammer
Nails or screws (if attaching to a fence)
Sturdy planters or weighted buckets filled with concrete and a PVC pipe slot in center (one planter or bucket for each post)
18-inch-long metal rebar stakes (one for each pole; needed only if using EMT and mounting lights over a lawn)
Cable ties

Before You Start

1. Choose where to hang your outdoor lights. Pick a spot outside where you'd like to hang your string lights and identify a power source. If you don't have an exterior outlet where you need one, be sure to have an outdoor extension cord handy.

2. Measure for length and roughly choose your light configuration . Before purchasing string lights, run a tape measure along the distance you'd like to hang lights, including any zigzags or crisscrosses for the configuration. This can be a fairly rough estimate, such as three times across a 25-foot-wide patio; just get a sense of the length of lights you need.

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3. Purchase the cords and lights, and gather all materials. Skip the cheap string lights and invest in commercial-grade patio lights marked for outdoor use, which are more durable and waterproof, and can be used permanently outdoors or year after year.

Commercial-grade string lights often come with the cord and bulbs sold separately. For the cord, you can choose among gauges ranging from 14 to 18, and among standard lengths like 24 feet, 48 feet, 100 feet, 165 feet and even up to 300 or more feet. Each strand specifies which bulbs are compatible with the sockets. Choose a thicker 14-gauge cord if you plan to purchase longer strands of lights. Choose between long-lasting LED bulbs or traditional incandescent bulbs, which have a warmer glow. When you're buying the bulbs, get a few extra to have on hand for replacements.

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Most patio light strands have male and female plugs on each end. Manufacturers specify how many strands you can connect end to end — usually it's up to five strands of the shorter ones (less than 48 feet) and three to five strands of the longer ones (100 feet). Extra-long strands, 300 feet or more, should not be connected end to end.

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How to Hang String Lights

1. Identify where mounting support is needed. Lay out your string light cords along the ground — or have a friend help you hold them up — in the configuration you've chosen. Mark an X with a pencil or place a piece of painters tape where you need support to hold them up.

Trees, fences, porches, pergola roofs or the eaves of your house are perfect existing supports if they're in the right place. If they are, mark where you'll need to install mounting hooks. Don't have perfectly positioned natural supports? Learn how to hang outdoor string lights in a backyard without trees below.

2. Install mounting hardware or use a string light suspension kit — or both. There are two ways to mount string lights: on their own or attached to a sturdy wire as part of a light suspension kit. Mounting to a wire isn't necessary, but it can help maintain tension if you're hanging string lights over a larger expanse, and it can provide more support if your backyard is breezy.

Hanging without a wire: To hang the patio lights without a wire, screw a cup hook into the wall, fence, pergola or tree trunk to use as mounting. (You may need to drill a hole first, before putting in the screw.)
Hanging with a wire: If you're using a wire, you can purchase a wire hanging kit that comes with a cable wire and suspension hardware (turnbuckles, snap hooks, pad eyes and lock clamps). Install according to the instructions included with the kit.

3. Hang patio lights. Once you've installed your cup hooks or strung up your wire, you're ready to put up the lights. Plug the lights directly into an exterior outlet or into an outdoor extension cord and position the first bulb next to the mounting hardware. Once you've checked this spacing, unplug the lights to hang the rest of the string. Work your way across the yard to hang the string lights between mounts, following the pattern you envisioned.

Most commercial-grade patio lights come with clips attached to the top of the bulb socket or the wire above the bulb. If you used a mounting wire, clip the lights onto the wire.

Once all lights are up, once again plug the string lights into the exterior outlet or extension cord plugged into an outlet. You can use electrical staples to keep the extension cord tight against the wall of a house or down a post.

How to Hang String L ights in a Backyard Without Trees

If you don't have walls or trees in just the right spot to hang your string lights, you'll need to put a little extra effort into making supports for your patio lights.

Along a wood fence. If you have a wood fence that isn't high enough for the lights, attach 10-foot-long wooden posts with cup hooks on the top to bump up the height of the lights. Space the wooden posts along the fence posts, or roughly 8 feet apart. Secure the wooden posts to the fence posts by side-nailing (nailing at an angle), or use a drill to secure them with screws into the fence.

On a deck or concrete patio. If you don't have any natural supports available in a yard, a common solution is to put posts, each with a hook on the top, into sturdy planters filled with gravel or buckets filled with concrete and a PVC pipe (large enough to fit the post) slot in the center. Position planters or buckets around the perimeter of a patio and string lights between the posts.

The drawback of this method is that you need to deal with heavy planters or buckets filled with concrete. If the lights are strung over a larger patio, they will have a substantial pull on the supports, which can cause buckets to tip over.

If you'd like more tension in the string light cords, use a thicker wooden post (2-by-2 or larger), or use half-inch electrical metal tubing plus a tube clamp at the top for attaching a hook.

Posts attached to a rooftop railing provide height and support for outdoor globe lights.

On a lawn. If you're installing lights over a lawn or anywhere else where you can drive a stake into the ground, an easier method is to use 10-foot-long electrical metal tubing poles, and secure each one into the ground with a metal rebar stake. To do this, buy an 18-inch-long rebar stake for each EMT pole, position the poles where needed for support, drive half the stake into the ground with a hammer and slide the hollow EMT pole onto it.

A simple, inexpensive way to attach the string lights to the EMT poles is with cable ties. It's easiest with a buddy holding the lights up for you so you can work your way across the yard and attach the cable ties as you go. If the EMT pole has a hole in the end, as some do, thread a cable tie through the hole and the end of the pole, and then pull it to form a loose loop around the cord of the lights. In general, you don't want to tightly pull the cable tie against the cord of the string lights, as this can cause the lights to short-circuit.

If the EMT pole does not have a hole at the end, use one cable tie to create a loop (fasten the cable tie to itself around the cord of the string lights) and use another to attach the cable tie loop holding the string lights to the top of the EMT pole.

How to Hang String Lights on a Covered Patio

If you have an existing structure, hanging string lights is easy. Just attach cup hooks every yard or so along a covered patio, porch or pergola. You can crisscross the lights or follow the line of the roof or porch beams.

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