How to Hang String Lights on a Pergola: A Step-by-Step Guide

Last Updated on July 18, 2023 by Kimberly Crawford

Pergolas are outdoor structures that provide a shady, elegant retreat in your backyard. While they are beautiful during the day, adding string lights can transform your pergola into a magical paradise at night, enhancing its aesthetic appeal and functionality.

String lights not only illuminate your outdoor space but also create a warm, inviting ambiance perfect for late-night gatherings or quiet evenings outside. They can highlight the architectural features of your pergola, creating a stunning visual effect that can be enjoyed all year round.

This article will guide you through the process of hanging string lights on a pergola. We’ll cover everything from preparation, choosing the right type of lights, planning your design, to the actual installation process.

Whether you’re a DIY enthusiast or a first-timer, this step-by-step guide will make the task easier and enjoyable for you. Let’s get started!


hang string lights on pergola

Before you start the process of hanging string lights on your pergola, it’s essential to gather all the necessary materials and tools. Here’s what you’ll need:

Materials Needed

  1. String Lights: Ensure you have enough length to cover your pergola. It’s recommended to buy an extra set just in case.
  2. Extension Cord(s): Depending on where your power source is located, you might need one or more weatherproof extension cords.
  3. Measuring Tape: To accurately measure your pergola and the distance to your power source.
  4. Ladder: A ladder will be needed to reach the top of your pergola. Make sure it’s sturdy and safe to use.
  5. Hooks or Clips: These will be used to attach the string lights to the pergola. Choose ones that are strong and suitable for outdoor use.
  6. Zip Ties or Twist Ties (optional): These can be useful for securing the string lights to the pergola or managing extra cord length.

Safety Precautions

Safety should always be your priority when dealing with electricity and working at heights. Here are some precautions to keep in mind:

  1. Check Lights: Before hanging, check your string lights for any damage. Never use lights with frayed cords or cracked bulbs.
  2. Use a Stable Ladder: Make sure your ladder is stable before you climb it. If possible, have someone hold it for you while you’re working.
  3. Avoid Overloading Circuits: Don’t connect more light strings together than the manufacturer recommends.
  4. Weather Considerations: Avoid setting up in wet conditions, and ensure all connections and outlets are protected from weather elements.
  5. Turn Off Power: Always turn off the power when connecting or disconnecting your string lights from the power source.

Choosing the Right String Lights

When it comes to string lights, there are several types to choose from. Each has its own unique features and benefits. Here’s a brief overview of some common types:

1. LED String Lights

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LED lights are energy-efficient and long-lasting. They emit less heat than traditional bulbs, making them a safer option for extended use. They also come in various colors and styles, including globe and fairy lights.

2. Solar String Lights

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These lights are powered by the sun, making them an eco-friendly and cost-effective choice. They’re great for areas where an electrical source may not be readily available. Keep in mind that their brightness and longevity will depend on the amount of daily sunlight they receive.

3. Incandescent String Lights

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Incandescent lights provide a warm, inviting glow that many people associate with traditional holiday lights. However, they consume more energy and don’t last as long as LEDs.

4. Fairy Lights:

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Fairy lights usually consist of tiny LED bulbs attached to a thin, flexible wire. They give off a magical, twinkling effect, perfect for creating a whimsical atmosphere.

5. Globe String Lights

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These lights feature round bulbs that emit a soft, diffused light. They’re fantastic for creating a cafe-style ambiance in your outdoor space.

6. Vintage String Lights

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Vintage or Edison-style string lights have an old-world charm that can add a touch of elegance to your pergola. They typically feature incandescent bulbs with visible filaments.

7. Rope Lights

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Encased in a clear or colored tube, rope lights offer a continuous and consistent line of light. They are versatile and can be bent into various shapes.

8. Battery-Powered String Lights

If you don’t have an outdoor power outlet, battery-powered lights can be a good option. They can be set up anywhere but keep in mind you’ll need to check and replace the batteries periodically.

Factors to Consider

  • Length: Measure your pergola accurately to determine how many strings of lights you’ll need. Ensure you account for the swag (droop) between each attachment point and for the distance to your power source.
  • Power Source: Consider where your nearest power outlet is. If it’s far from your pergola, you might need an outdoor-rated extension cord. Alternatively, you could consider solar or battery-powered lights.
  • Color: String lights come in a variety of colors. Warm white lights create a cozy, inviting atmosphere, while cooler white lights provide a more modern look. Colored lights can add a festive or playful touch.
  • Style: The style of string lights you choose can significantly impact the overall look of your pergola. Fairy lights create a magical, whimsical effect, globe lights offer a cafe-style vibe, and vintage string lights add an elegant, old-world charm.
  • Brightness: Depending on the mood you want to set, you may opt for brighter or dimmer lights. If you plan to read or dine under your pergola, brighter lights would be beneficial. For a more relaxed, intimate atmosphere, go for dimmer lights.
  • Durability: Since your lights will be outdoors, they should be waterproof and designed to withstand various weather conditions. Look for lights labeled as outdoor or commercial grade.
  • Energy Efficiency: LED lights consume less energy and last longer than incandescent lights, making them a more eco-friendly and cost-effective choice in the long run.
  • Ease of Installation: Some string lights come with built-in clips or holes to make hanging easier. Also, consider how easy it will be to replace bulbs if they burn out.

Planning Your Design

string lights on pergola

Before you start hanging your string lights, it’s crucial to plan your design. This involves measuring your pergola accurately to ensure proper light placement.

Measuring the Space

  1. Measure the Length and Width: Start by measuring the length and width of your pergola using a measuring tape. These measurements will help you determine the total amount of string lights you’ll need.
  2. Account for Swag: When string lights are hung, they often have a droop, or “swag,” between each point where they’re attached. Determine how much swag you want in your design – this could be anywhere from a few inches to a few feet, depending on the look you’re going for. Add this extra length to your total measurements.
  3. Consider the Distance to Power Source: Don’t forget to measure the distance from your pergola to the nearest power source. You’ll need to ensure your string lights or extension cord can comfortably reach this distance.
  4. Marking Attachment Points: Based on your desired design, mark out the points on the pergola where you’ll attach the lights. Measure the distance between these points and add it to your total length.

By accurately measuring your space, you’ll ensure you have enough string lights to cover your pergola adequately. In the next section, we’ll discuss how to sketch out your design using these measurements.

Sketching Your Design

Once you’ve measured your space, sketching your design plan will help visualize how the string lights will be placed on your pergola. Here are some design ideas to consider:

  1. Straight Lines: This is the simplest design where the lights are run in straight lines from one end of the pergola to the other. This creates a clean, modern look.
  2. Zigzag Pattern: In this design, the lights are hung in a zigzag pattern across the pergola. This creates a dynamic, festive atmosphere and provides more illumination as it uses more lights.
  3. Perimeter Lighting: This design involves running the lights along the perimeter of the pergola. It’s a great way to highlight the structure of your pergola.
  4. Draped Effect: For a romantic, whimsical feel, drape the lights from the center of the pergola to the sides creating a tent-like effect.
  5. Cross Hatch: If your pergola is large, a cross-hatch pattern can ensure the entire space is well lit. It involves creating a grid-like pattern with the lights.
  6. Mixed Patterns: You can also mix and match different patterns for a unique look. For example, you could use a perimeter lighting design with a zigzag pattern in the center.

When sketching your design, remember to mark the power source and how the string lights will reach it. This will help you identify any potential issues before you start hanging the lights.

Installation Process

Once you’ve gathered your materials, taken necessary safety precautions, chosen the right string lights, and planned your design, it’s time to start the installation process.

A. Attaching the Hooks or Clips

  1. Position Your Ladder: Begin by positioning your ladder securely under the first point where you plan to attach the string lights. Make sure the ladder is on stable ground and, if possible, have someone hold it for you for additional safety.
  2. Mark Attachment Points: Using your design sketch as a guide, mark the points on the pergola where you’ll attach the hooks or clips. You can use a pencil or chalk for this.
  3. Attach the First Hook or Clip: Hold the hook or clip against the pergola at your first mark. If you’re using screw-in hooks, you may need to drill a small pilot hole first. Then, screw in the hook by hand or with a screwdriver until it’s secure. For adhesive clips, follow the manufacturer’s instructions to ensure they stick correctly.
  4. Repeat the Process: Move your ladder to the next marked point and repeat the process until you’ve attached a hook or clip at all your marked points.
  5. Check Your Work: Once all the hooks or clips are installed, double-check that they are secure and positioned correctly according to your design plan.

Remember to take your time during this process. It’s crucial that the hooks or clips are securely attached to the pergola to support the weight of the string lights. In the next section, we’ll discuss how to hang the string lights on these hooks or clips.

B. Hanging the String Lights

Now that your hooks or clips are securely in place, it’s time to hang your string lights. Here’s a step-by-step guide:

  1. Unpack Your Lights: Carefully remove your string lights from the packaging and untangle them if necessary. Check each bulb to ensure they’re all working before you start hanging them.
  2. Start at the Power Source: Begin at the point closest to your power source. This will make it easier to plug the lights in once they’re hung. If your design includes an extension cord, plug the first string light into it.
  3. Attach the First Light: Place the first light in your string on the first hook or clip, ensuring it’s securely attached. Remember to follow your design plan.
  4. Hang the Rest of the Lights: Continue attaching the string lights to each hook or clip, following the pattern you’ve sketched out. Be gentle as you hang the lights to avoid pulling them down or damaging them.
  5. Add Extra Strings: If your design requires more than one string of lights, connect the end of the first string to the beginning of the next one. Make sure not to exceed the manufacturer’s recommendation for how many strings can be connected together.
  6. Adjust as Needed: Once the lights are up, step back and look at your pergola from different angles. Adjust the swag or reposition the lights as needed to achieve your desired effect.
  7. Plug In the Lights: Once you’re satisfied with your design, plug the lights (or extension cord) into your power source. Use an outdoor-rated surge protector if possible for added safety.
  8. Secure the Connection: If you’re using an extension cord, secure the connection between the cord and the string lights with electrical tape to prevent it from coming apart.
  9. Enjoy Your Illuminated Pergola: Turn on your string lights and enjoy the fruits of your labor!

Hanging string lights on your pergola can transform your outdoor space into a cozy, inviting haven. With careful planning and attention to detail, you can create a beautiful lighting design that you’ll enjoy all year round.

C. Connecting to Power

Once your string lights are hung to your satisfaction, the final step is to connect them to a power source. Here’s how to do it safely:

  1. Check the Connections: Before plugging in your string lights, make sure all the connections between different strings of lights (if you’re using more than one) are tightly secured.
  2. Use an Outdoor-Rated Extension Cord: If your string lights don’t reach your power source, use an outdoor-rated extension cord. These are designed to withstand weather conditions and are safer for outdoor use.
  3. Secure the Connection: When connecting the string lights to the extension cord, ensure the connection is tight. You can wrap electrical tape around the connection to help keep it secure and to prevent any water from getting in.
  4. Plug into a GFCI Outlet: For safety, plug your lights or extension cord into a Ground Fault Circuit Interrupter (GFCI) outlet. This type of outlet will automatically shut off power if it detects a ground fault or leakage current.
  5. Use a Surge Protector: A surge protector can protect your string lights from voltage spikes that could potentially damage them.
  6. Test Your Lights: Once everything is plugged in, turn on your lights to make sure they’re working properly. If any bulbs aren’t lighting up, switch off the power and check the connections or replace the bulb if necessary.
  7. Safety Check: Keep cords and lights away from water sources, high-traffic areas, and flammable materials. Regularly check your lights for any signs of damage or wear.

Advice on Cleaning and Maintaining String Lights

To ensure your string lights continue to shine brightly and last a long time, regular cleaning and maintenance are essential. Here are some tips:

  1. Inspect Regularly: Regularly check your string lights for any signs of damage such as frayed cords, loose bulbs, or cracked plastic. Replace any damaged parts immediately.
  2. Clean the Fixtures: Over time, outdoor lighting fixtures can accumulate dust, dirt, and debris. You can clean them by wiping with a dry, soft cloth, or using warm water and mild soap for tougher grime. Remember to dry thoroughly after cleaning to prevent moisture damage.
  3. Remove Mold: If you notice mold on your string lights, use a soft-bristle brush dipped in a mild cleaning solution to gently scrub it off. Make sure to wear protective gloves and eye protection when doing this.
  4. Replace Burnt Out Bulbs: When a bulb burns out, replace it as soon as possible to prevent overloading the rest of the bulbs in the string.
  5. Don’t Overload Circuits: Always follow the manufacturer’s instructions regarding how many strings can be connected together. Overloading can lead to overheating and potential fire hazards.
  6. Store Properly: If you’re not using your string lights year-round, store them properly during off-seasons. Coil them loosely to prevent damage, keep them in a cool, dry place, and make sure they’re clean and dry before storing.

Remember, safety is paramount. If you notice any significant damage or electrical issues with your string lights, it’s best to consult a professional. Regular upkeep will not only prolong the life of your lights but also keep your outdoor space looking its best.



Transforming your outdoor space with string lights can be a rewarding project. Let’s recap the steps:

  1. Plan Your Design: Measure the space and sketch out your design. Consider factors like where your power source is and how you want your lights to hang (straight lines, zigzag, draped, etc.).
  2. Prepare for Installation: Gather your materials, including hooks or clips, ladder, measuring tape, and of course, your string lights.
  3. Attach the Hooks or Clips: Mark the points on the pergola where you’ll attach the lights. Securely attach the hooks or clips at these points.
  4. Hang the String Lights: Start from the point closest to your power source and carefully hang the string lights following your design plan. Adjust as needed to achieve your desired effect.
  5. Connect to Power: Safely connect your lights to a power source, ideally a GFCI outlet, using an outdoor-rated extension cord and surge protector if necessary.
  6. Regular Upkeep: Clean and inspect your string lights regularly to ensure they continue to work properly and look good.
  7. Consider Weather Conditions: Be prepared to take down or secure your lights in adverse weather conditions to prevent damage.
  8. Prioritize Safety: Always prioritize safety when dealing with electricity. If you’re unsure about anything, consult a professional.

String lights can turn your pergola into a charming and inviting space, perfect for evening gatherings or quiet nights under the stars. Don’t be afraid to experiment with different designs until you find the one that best suits your style and space. Remember, the key to a successful installation is careful planning, patience, and attention to detail. So go ahead, light up your pergola, and enjoy the magical ambiance it creates!