How to Install Deck Post Cap Lights
![Trn Pugh 005 Rail Light Stair Raw](/media/wv2job3k/trn_pugh_005_rail_light_stair_raw.jpg?width=500&height=333.3333333333333&format=webp)
1) Router a 3/4" deep channel into the 2x4 top rails. This will allow you to hide the low-voltage wire under the top cap. Also router a 3/4" channel down the side of the rail post, closest to the transformer. This will allow you to transfer the wire from under the deck to the top rail. Place the transformer next to the electrical outlet.
2) Drill a hole into the center of the top of your rail posts using a 2" forstner bit. Drill a 1/2" hole from the side of the top rail through the center hole to pull the low-voltage wire through.
3) Run the wire from the transformer to the first light, leaving a 6" loop of wire at the top of the post. Continue the process of threading the wire along the rail through each post, leaving a loop of extra wire at each post. Do not secure the top cap until the lighting system is finished and working.
4) At each post, cut the wire and separate the wires into 2-3" strands. Use a wire stripper to remove about 1/2" of sheathing from each wire and the wires from the light cap.
5) Match the polarity of the wires. One wire will have a smooth black wire and the other will have white lettering or ribbing. Hold the wire ends together and connect them by twisting waterproof wire nuts to create a tight connection. Wrap the connection with electrical tape.
6) Read the instructions for your transformer. Make sure the on/off switch is turned off. Secure the transformer using mounting brackets to its desired location and run the wires into place and connect. Make sure the photo eye sensor is accessible to sunlight.
7) Plug the transformer into the outlet and turn it on. Test the lighting and set the timer as needed.
8) Unplug the transformer and secure the top cap to hide the low-voltage wire. Be careful not to screw into the wire.
Installing Side Mount Deck Lights
1) Router a 3/4" deep channel into the 2x4 top rails. This will allow you to hide the low-voltage wire under the top cap. Also router a 3/4" channel down the side of the rail post closest to the transformer. This will allow you to transfer the wire from under the deck to the top rail. Place the transformer next to the electrical outlet.
2) Drill a hole into the center of the top of your rail posts using a 2" forstner bit. Drill a 1/2" hole from the side of the top rail through the center hole to pull the low-voltage wire through. Determine the height of the side-mounted lights. This is usually just below the top rail. Drill a 1/2" hole from this location into the center post hole.
3) Run the wire from the transformer to the first light, leaving a 6" loop of wire at the top of the post. Continue the process of threading the wire along the rail through each post, leaving a loop of extra wire at each post. Do not secure the top cap until the lighting system is finished and working.
4) At each post, cut the wire and separate the wires into 2-3" strands. Use a wire stripper to remove about 1/2" of sheathing from each wire and the wires from the light cap.
5) Match the polarity of the wires. One wire will have a smooth black wire and the other will have white lettering and ribbing. Hold the wire ends together and connect them by twisting waterproof wire nuts to create a tight connection. Wrap the connection with electrical tape.
6) Read the instructions for your transformer. Make sure the on/off switch is turned off. Secure the transformer using mounting brackets to its desired location and run the wires into place and connect. Make sure the photo eye sensor is accessible to sunlight.
7) Plug the transformer into the outlet and turn it on. Test the lighting and set the timer as needed.
8) Unplug the transformer and secure the top cap to hide the low-voltage wire. Be careful not to screw into the wire.
Deck Skirting and Fascia
Skirting can be an attractive feature that can be added to any low-level deck.
Installing a DIY Under-Deck Drainage System
Whether you're storing outdoor furniture or entertaining guests, you can add a DIY under deck drainage system to your deck to stay dry.
Underrated + Overlooked Features to Consider Adding to Your Deck
Want to give your deck or patio a unique look? These creative deck ideas will upgrade your deck in no time.
10 Tips For Designing A Great Deck
This is an introduction to design. Start here to get some fresh ideas before designing your dream deck this year.
Deck & Patio Furniture Buying Guide
Interested in buying furniture for your deck and don’t know where to start? Learn how to choose the best deck & patio furniture with our buying guide.
How to Build a Floating Deck
Did you know that floating decks are much easier to build than standard decks? View step-by-step instructions for building a floating deck at Decks.com.
More Helpful Resources
Explore Articles by Topic
![Footings](/media/3vsas025/all-articles_footings-2x.png?format=webpg&quality=80)
Footings
Information related to installing frost footings for decks
![Framing](/media/5wrarsgy/all-articles_framing-2x.png?format=webpg&quality=80)
Framing
Learn structural framing methods
![Decking](/media/meljt4np/all-articles_decking-2x.png?format=webpg&quality=80)
Decking
Learn about wood and composite decking materials
![Stairs](/media/2sopl0br/all-articles_stairs-2x.png?format=webpg&quality=80)
Stairs
An in-depth look at the complex issue of how to build stairs
![Railings](/media/hpwbuyzr/all-articles_railings-2x.png?format=webpg&quality=80)
Railings
How to install guardrails and handrails to meet IRC code
![Features](/media/tvcahlmk/all-articles_features-2x.png?format=webpg&quality=80)
Features
An overview on water drainage, benches, planters and lights
![Design](/media/3bvpzvtz/all-articles_design-2x.png?format=webpg&quality=80)
Design
The basics of deck design
![Planning](/media/qdenqrqv/all-articles_planning-2x.png?format=webpg&quality=80)
Planning
Learn about permits and working with contractors
![Porches and Patios](/media/sg5bst1z/all-articles_porches-and-patios-2x.png?format=webpg&quality=80)
Porches & Patios
Build a covered deck to enjoy all seasons
![Ledger](/media/0htjl4uu/all-articles_ledger-2x.png?format=webpg&quality=80)
Ledger
Proper attachment techniques
![Care](/media/qdpnwkry/all-articles_care-2x.png?format=webpg&quality=80)
Care
Maintain your deck to maintain your investment
![Materials](/media/zqfflkeo/all-articles_materials-2x.png?format=webpg&quality=80)
Materials
An overview on water drainage, benches, planters and lights
5 Best Ways on How to Hide Trash Cans Outside
Outdoor trash cans can be an unwanted eyesore. Discover how you can easily cover them up and add an extra touch of beauty to your yard.
The 9 Best Porch Swings for 2024
Porch swings are a great way to add charm and comfort to any home. Get our recommendations for how to choose the best porch swing.
Best Outdoor Kitchen Design Ideas For 2024
Make your backyard kitchen the place to be this year. Find unique outdoor kitchen ideas for summer BBQs, grilling, and outdoor parties at decks.com.
6 Ground Level Deck Ideas to Transform Your Space
Ground level decks are a more budget- and time-friendly way to take your backyard to the next level. From a private backyard getaway to a minimalist zen design concept, check out these ground level deck ideas to inspire your upcoming project.
Hanging String Lights
Hanging string lights on a deck is a great way to enjoy summer nights. Learn how easy it is to hang any type of string lights on a deck with Decks.com.
5 Ways to Use Your Deck In The Winter
Hoping to get use out of your deck all year long? Discover these helpful deck ideas to keep your deck warm and cozy in cold winter weather at Decks.com.
Explore Articles by Topic
![Footings](/media/3vsas025/all-articles_footings-2x.png?format=webpg&quality=80)
Footings
Information related to installing frost footings for decks
![Framing](/media/5wrarsgy/all-articles_framing-2x.png?format=webpg&quality=80)
Framing
Learn structural framing methods
![Decking](/media/meljt4np/all-articles_decking-2x.png?format=webpg&quality=80)
Decking
Learn about wood and composite decking materials
![Stairs](/media/2sopl0br/all-articles_stairs-2x.png?format=webpg&quality=80)
Stairs
An in-depth look at the complex issue of how to build stairs
![Railings](/media/hpwbuyzr/all-articles_railings-2x.png?format=webpg&quality=80)
Railings
How to install guardrails and handrails to meet IRC code
![Features](/media/tvcahlmk/all-articles_features-2x.png?format=webpg&quality=80)
Features
An overview on water drainage, benches, planters and lights
![Design](/media/3bvpzvtz/all-articles_design-2x.png?format=webpg&quality=80)
Design
The basics of deck design
![Planning](/media/qdenqrqv/all-articles_planning-2x.png?format=webpg&quality=80)
Planning
Learn about permits and working with contractors
![Porches and Patios](/media/sg5bst1z/all-articles_porches-and-patios-2x.png?format=webpg&quality=80)
Porches & Patios
Build a covered deck to enjoy all seasons
![Ledger](/media/0htjl4uu/all-articles_ledger-2x.png?format=webpg&quality=80)
Ledger
Proper attachment techniques
![Care](/media/qdpnwkry/all-articles_care-2x.png?format=webpg&quality=80)
Care
Maintain your deck to maintain your investment
![Materials](/media/zqfflkeo/all-articles_materials-2x.png?format=webpg&quality=80)
Materials
An overview on water drainage, benches, planters and lights