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DIY Deck Railing Ideas & Options

August 9, 2024
Two chairs on a deck on the beach with a RadianceRail Express in White railing

Railing isn’t just a safety feature — it also adds a polished finish to your deck. With these innovative and simple DIY deck railing ideas and options, you can elevate both the style and safety of your outdoor living space.

HOW DO YOU BUILD A RAILING FOR A DECK?
Read up on best practices for installing your own DIY deck railing. LEARN MORE

To create your custom deck railing design, follow these steps.

Step 1: Get Familiar with Railing Systems & Material Types

Impression Rail Express railing in black with aluminum balusters on deck of a lakefront property

A railing kit is a combination of several components, which are often constructed from different materials.

Our railing portfolio includes PVC, Composite, and metal deck railing. Each system features multiple infill options for optimal customization.

First, learn what all the different components of a railing are so you can customize like a pro.

Deck Railing Components

Deck railing components diagram
  1. Top railThe uppermost piece of the railing that runs between posts and connects to the top of the infill.
  2. Bottom rail – The lower piece of the railing that runs parallel to the top rail between posts and connects to the bottom of the infill.
  3. Infill The piece that fits between the top and bottom rail, filling the inner portion of the rail.
  4. Post The vertical piece that connects each railing panel and secures the railing to the deck surface. Composite railings feature a post sleeve that covers a wood post, while metal railings feature a full aluminum post.
  5. Post capThe top piece of the post that often features a design and can include lighting.
  6. Post skirtA detail piece that covers the bottom of the post, where it connects to the deck surface.

What is the Best Deck Railing Material for my Deck?

The TimberTech Railing portfolio contains three different top railing material types: PVC, Composite, and metal.

But these aren’t the only materials that can make up your DIY deck railing. Based on your top rail choice, you’ll also be able to incorporate other materials, such as stainless steel cable and glass, in your infill (which you’ll learn about in Step 3).

PVC Railing

Pinnacle Rail with Chippendale infull

This material is made from extruded PVC material with aluminum reinforcement.

Why Should I Choose PVC Deck Railing?


Best moisture resistance & durability: Won’t crack, chip, rot, swell, or split

UV-resistant for color protection

Lightweight​ for easier handling 

Composite Railing

Adirondack chair on deck with RadianceRail Express railing in white

Composite railing is made of a mix of recycled wood fibers and post-consumer polymers.

Why Should I Choose Composite Deck Railing?


Designed to mimic the look of real wood, without the drawbacks (think staining, sealing, etc.)

Attractive customization options to make the design yours

High-performance, low-maintenance that’s fade-resistant for lasting beauty with minimal effort

Metal (Aluminum) Railing

Classic Composite Series with Drink Rail in wooded back yard

Metal railing features powder coating and is designed to be both lightweight and durable.  

Why Should I Choose Metal Deck Railing?


Features an attractive wrought-iron-inspired look, without the same risk for rust and corrosion

Multiple top rail and infill options for a unique look

Easy installation options when you choose a panelized railing system like Impression Rail Express®

WHAT ABOUT WOOD DECK RAILING?
Find out why wood is no good — for decking and railing alike. Learn more about staining deck rails.

Step 2: Determine your Design Aesthetic

White Impression Rail Express railing with horizontal cable rail infill on a waterfront home's deck

Now that you know the three main railing categories to choose from, the next step for customizing your DIY deck railing is to think through your preferred design aesthetic. Thinking through your aesthetic style now will help you choose the right top rail profile and compatible infill option to create your custom look.

How can I Find my Deck Railing Style?

Not sure what aesthetic is best for your DIY deck railing design? Here are some questions to ask yourself to determine your aesthetic:

  • What is the architectural style and color story of my existing home? Which decking and railing combinations will best complement them?
  • Am I looking to keep your views unobstructed with something minimal or make a bold style statement?
  • Which railing profile do you prefer: classic millwork, modern and polished, or clean and minimalist? (See below)
  • What color is your home’s trim? Many design-forward homeowners like to match their trim and railing for a cohesive look.

With these questions in mind, take a look at some curated railing designs to gather more inspiration for your DIY deck railing.

Want to Explore More Railing Designs?

See different railing styles on completed builds & get insight on the right aesthetic for your DIY deck railing.

Step 3: Explore your Infill Options

Classic Composite Series rail with horizontal cable rail infill on the water

The next step to your DIY deck railing is deciding on an infill, or the portion of the railing that runs between the top and bottom rails. Your infill material and color options will depend on the top rail profile you’ve selected.

REMEMBER
The infill is just as important as the top and bottom rails in creating the overall look and feel of your deck railing.

Infill Options


EXPLORE ALL YOUR CUSTOMIZATION OPTIONS
Learn how to mix and match your railing materials for a unique perimeter. EXPLORE DECK RAILING MATERIALS

Step 4: Understand DIY Deck Railing Best Practices

DIY deck railing installation best practices

With all your customization options locked in, you’re ready to think through DIY deck railing installation best practices. The complexity of DIY-ing your deck railing will depend on the railing and infill options you choose.

As an essential safety feature, railings have specific code requirements you’ll need to follow for a code-compliant installation. Always be sure to check with your local building codes department to determine the requirements specific to your area.

RATHER WORK WITH A PROFESSIONAL?
Leave installation up to the pros by partnering with a TimberTech contractor. FIND A CONTRACTOR

If you’re committed to a DIY deck railing installation, your railing will need to meet the following requirements:*

Deck railing height diagram

Basic Requirements for Railing Installation

Railing guardrail height: at least 36” above the deck surface. In some applications, such as residential decks in California, the height needs to be 42”.*

Space between balusters: Typically no more than 4”.

Space between bottom rail and deck surface: typically no more than 4”, but can be no more than 2” in certain applications.*

*Always check with your local building codes department before installing your railing.

Keep in mind that a railing is required on decks that are 30” above ground level. However, even on lower decks, a railing can improve your deck’s safety and add a design element for a polished outdoor living space.

LOOKING FOR AN EASY RAILING INSTALLATION?
Opt for Impression Rail Express, which features a panelized metal railing system with pre-assembled balusters and pre-drilled holes in the rails. Learn more about installing deck railings.

Step 5: Sample your High-Style, Low-Maintenance Railing

Two wicker chairs on deck with white Impression Rail Express rail with a vertical cable rail infill

Now that you know your DIY deck railing options, it’s time to see how your favorites look in your space.

Choosing the perfect railing for your project is easier when you can see and feel TimberTech samples firsthand. By experiencing the quality and aesthetics of the materials, you’ll ensure the best fit for your outdoor space.

Find the Right Railing for You

Check out all of the customizations possible with TimberTech Railing including infill material, color options, and lighting choices to bring your dream deck to life.

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