Aluminum Structural Porch Post by RDI
White Aluminum Posts
Clean and modern white aluminum posts for a crisp architectural finish.
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What “RDI Aluminum Structural Porch Posts” Are
Structural posts by RDI are load-bearing aluminum posts designed to support railings, porch roofs, pergolas, and elevated deck elements. These posts act as the backbone of your railing or porch support system — stronger and more durable than basic decorative railing posts.
They are rigid metal posts with integrated base plates and mounting hardware that make them suitable for anchoring into deck framing, concrete, or other solid substrates.
Key Characteristics
Strength & Load Support
- RDI structural posts are made from aluminum, which offers excellent strength and corrosion resistance in outdoor environments.
- They’re engineered to support both rail loads and structural loads, such as porch roof connections or continuous railing spans.
Compatibility with RDI Systems
- These posts are compatible with multiple RDI railing lines, including Titan Pro Rail, Endurance Original Rail, Finyl Line, Avalon Aluminum Railing, and Metal Works Excalibur systems.
- Using a dedicated structural post ensures proper alignment and meeting building codes for elevated or load-bearing areas.
Mounting Flexibility
- Flush-mount options allow installation directly on deck boards or concrete slabs for a clean look.
- You can also combine these posts with vinyl or metal sleeves/wraps to match aesthetic finishes while maintaining structural integrity.
Sizing & Code Compliance
- Structural posts commonly come in different heights (e.g., 36″ and 42″ finished railing heights) to match deck railing requirements.
- Because they are engineered metal posts, they help ensure compliance with local building codes when properly installed.
DETAILS:
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Three colors to choose from: white, matte black or aged bronze
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Dimensions:
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Outer dimensions of opening: 4.3175” x 4.3175"
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Length: 108”
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Material: Powder coated aluminum
WHAT’S INCLUDED:
- Aluminum structural column (1)
- Installation Instructions
More details:
- Lifetime warranty
- Bears 5,000 lb. weight capacity
- Compatible with RDI’s aluminum base Post Trim or the mounting kit to secure to the floor and roof.
- Can be cut to create shorter posts
Not included:
Mounting kit *requires two per 1 post
- Click HERE for mounting kit
- Necessary for installation when using structural porch posts
About this Product:
Modern Aluminum Porch Columns by RDI
Aluminum porch columns by RDI offer a sleek, low-maintenance solution for modern outdoor spaces. Available in matte black, matte bronze, and white, these clean-lined columns make a bold statement while enhancing both curb appeal and structural integrity. Whether you're starting a new build or upgrading an existing porch, these structural posts deliver strength and style in equal measure. Tested to support over 5,000 pounds, these aluminum columns are engineered for long-term performance. Their clean design and exceptional durability make them a versatile option for new construction or as replacements for aging porch posts. Installation Tips for Aluminum Structural Posts: Use concrete anchors for concrete surfaces Use 3/8" diameter A307 bolts when securing to solid wood blocking Ensure all blocking is designed to handle proper load requirements
- [Click HERE for full installation instructions]
- [Click HERE for code documentation]
- [Click HERE for warranty information]
Have questions or need help choosing the right aluminum porch columns for your project? Our customer service team is available 24/7 to assist you—just give us a call at 1-877-265-2220.
