Base Flange - Square

Square Railing Base Flange: Floor Mount Fitting for Square Tubing

The Square Railing Base Flange is a heavy-duty square fitting designed to provide a strong, secure connection between a vertical post and a solid floor surface. Whether you're installing a handrail, guardrail, safety barrier, or any square pipe-based structure, this base flange is the ideal solution for anchoring posts to concrete, wood, or steel surfaces. With two 3/8" diameter mounting holes and two integrated set screws, it offers reliable structural support in both indoor and outdoor applications.

Made from galvanized cast iron, the Square Railing Base Flange is built to withstand tough environments and resist corrosion over time. It’s compatible with 40 mm galvanized square tubing (2 mm wall thickness) and installs quickly without welding, just tighten the included set screws using a standard Allen wrench. From safety railings to architectural builds, this fitting delivers long-lasting performance and peace of mind.

Key Features:

• Floor-Mount Base: Secures vertical square tube posts to solid surfaces like concrete, wood, or steel.
• Ideal for Rail Systems: Perfect for handrails, guardrails, and structural frameworks requiring a grounded post.
• Heavy-Duty Construction: Made from galvanized cast iron for maximum strength and corrosion resistance.
• Simple Installation: Installs with an Allen wrench and two 3/8" diameter bolts (not included). No welding required.
• Indoor & Outdoor Use: Built to endure exposure in industrial, commercial, or outdoor environments.
• Secure Fit: Includes steel set screws for strong, stable post attachment.
• Tube Compatibility: Fits 40 mm galvanized steel square tubing with a 2 mm wall thickness.

The Square Railing Base Flange delivers dependable, weld-free mounting for your square tubing structures. Ensuring safety, stability, and a professional finish.