How to Install Railings: Complete Step-by-Step Guide for DIY Aluminum Railing Installation
Thinking about installing railings yourself?
Good news: aluminum railings are strong, low-maintenance, and surprisingly easy to install — even for DIYers.
On this page, you'll learn:
- - What tools and materials you need
- - Key tips to measure your space correctly
- - How to install aluminum railings step-by-step
- - How to preview railing designs on your home with our free 3D visualization tool and AR designer
- - How to get a personalized quote and save with our DIY discount
Why Aluminum Railings Are Perfect for DIY Installation
Aluminum railings are one of the easiest types of railings to install yourself. They are:
- - Durable and weather-resistant — perfect for outdoor stairs, decks, porches, and balconies.
- - Lightweight and easy to handle — no heavy lifting or special equipment needed.
- - Low-maintenance — no painting, staining, or sealing required.
- - Modern designs — clean, stylish appearance that fits any home.
- - Engineered for DIY installation — simple system with minimal tools required.
Tools & Materials Needed to Install Railings
Here’s what you’ll need to install your aluminum railings:- - Tape measure
- - Drill with drill bits
- - Level
- - Wrenches or socket set
- - Mounting hardware (Some is included in the kit)
- - Safety glasses & gloves
What’s Included in Your Railing Kit
Your aluminum railing kit comes with everything you need for assembly and installation:
- - Preassembled Section — Custom Size
- - Posts
- - Spindles
- - Mounting Hardware (except post-to-ground bolts)
- - Post Caps
- - Base Covers
- - Top and Bottom Clip Covers
Measurement & Preparation Tips for Railing Installation
Correct measurements are crucial for a perfect fit. Here are some important tips to keep in mind:
- - The distance between the post and the edge is usually about 2-1/2”.
- - When measuring stairs, place a long level or straight board on the stair treads to see if all nosings touch or nearly touch the line. This ensures your stair railing will align properly.
- - If the top step nosing is lower than the alignment line across other nosings, your stair handrail may rise above the horizontal handrail or post. Make sure you’re satisfied with this result before ordering.
- - Always follow Ontario Building Code Requirements for height of handrail and bottom gap.
Step-by-Step Guide: How to Install Aluminum Railings
Step 1: Attach Spindle to Post
- - Use the screws provided in your kit.
- - For landings, spindles are usually installed 3” to 3 1/2” above ground level.
Step 2: Fit Panel Over Spindle
- - Slide the railing panel over the installed spindle.
Step 3: Secure the Panel
- - Fasten with small screws on each side of the panel.
Step 4: Repeat for Additional Posts
- - Attach additional spindles and fit panels between posts.
Step 5: Secure Posts to Surface
- - Predrill the holes to ensure clean, accurate installation.
- - Use appropriate hardware such as lag bolts or anchors to firmly attach posts to your deck, porch, or stairs.
Step 6: Install Finishing Components
- - Attach top and bottom clip covers.
- - Install post top caps and base covers to complete the look.
That’s it! Your aluminum railings are installed — strong, safe, and beautiful.
Need help?
We offer expert support if you have any questions during measurements or installation.
Preview Your Railing Design Before You Order
Not sure which railing design will look best?
Use our free 3D visualization tool to preview designs in your exact size:
- - Upload a photo of your site
- - Give us your dimensions
- - Browse designs and see 3D previews and pricing
It’s fast, easy, and completely free.
Upload your photo and measurements to get your free design preview and personalized DIY quote today!
Tap into AR and Get an Instant Railing Quote
Take control of your project with our smart AR Designer — no app needed. Just open it in Chrome on your Android device to measure your space using augmented reality, visualize your custom railing in real time, and get an instant quote.
Save Money with Our DIY Railing Discount
If you’re comfortable installing your aluminum railings yourself, we’ll reward you:
DIYers Get 15% Off All Quotes!
Take control of your project and save more — it's fast, easy, and accurate.
Get Expert Support When You Need It
Even though aluminum railing installation is DIY-friendly, you’re never alone.
We offer:
- - Email and phone support if you have questions
- - Free 3D design visualizations before you order
+1(437) 869-1065