Trust the strength of Simpson Strong-Tie with the 2.5 in. H x 5.5 in. W 18 Ga. Galvanized Steel Half Base. Engineered for outdoor wood framing, this half-base delivers a durable, corrosion-resistant anchor that keeps posts secure in decks, rails, and other structural applications.
Key benefits that matter in real-world projects
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18-gauge galvanized steel delivers dependable rigidity while resisting rust and weathering in outdoor environments.
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Half-base design provides a clean edge profile and straightforward alignment for post installations, helping you achieve a precise, plumb connection with less fuss.
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Compact footprint with a height of 2.5 inches and width of 5.5 inches offers a stable base without crowding surrounding framing details.
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Trusted brand Simpson Strong-Tie is synonymous with reliable structural connectors, backing your project with decades of engineering expertise.
Ideal use cases
- Deck and railing posts that require a durable, outdoor-ready base.
- Fence line posts where a sturdy anchor is essential for long-term stability.
- Outdoor signage or lightweight structure supports that demand corrosion resistance and solid footing.
Why this base stands out
Rather than a generic fastener, this half-base combines a proven material (18 ga galvanized steel) with a design that simplifies installation and improves alignment. The result is a reliable post anchor that reduces setup time, enhances structural integrity, and stands up to the elements over years of use.
Practical installation notes
- Prepare the surface to ensure the base sits flush and level against the post or framing member.
- Choose fasteners compatible with galvanized steel hardware and your substrate, following local building codes and project specifications.
- Position the base so the post will be securely aligned before fastening to prevent misalignment during assembly.
For outdoor projects that require a dependable, corrosion-resistant post base, the Simpson Strong-Tie 2.5 in. H x 5.5 in. W 18 Ga. Galvanized Steel Half Base combines proven strength with practical design—making it a smart choice for builders prioritizing durability, accuracy, and long-term performance.
