Mar 23, 2026
Corrugated Metal Side Gate | Arizona
Classic Shinobi Gaeshi black steel security spikes installed on a rustic corrugated metal side gate in Arizona, blending desert aesthetics with anti-climb protection.
Classic hook-type anti-climb spikes protecting the side fence of a blue Victorian residence near Buena Vista Park.
Victorian Side Fence | Buena Vista | San Francisco
Vivid blue Victorian-style residence near Buena Vista Park needed to secure the narrow side passage between the house and the neighboring brick wall building, a classic blind spot for intruders in San Francisco’s dense residential blocks.
Securing the Blind Spot
The gap between the two buildings is the most vulnerable route for break-ins. We installed our Classic series hook-type spikes along the full length of the metal fence. Topping the wooden gate, closing the route without touching the historic architecture.
Respecting Victorian Character
The slim stainless profile keeps the security hardware visually subtle against the ornate trim. Preserving the character of the Victorian-style architecture, while sending a clear deterrent message.
Built for San Francisco's Fog Belt
San Francisco’s marine air is rough on steel. The SUS304 stainless construction resists corrosion season after season with no repainting or maintenance.
Written by
Kojiro OtaniFounder of Saitani-Ya Co., Ltd. and creator of the Ninja Deterrent™ brand. Drawing on Japan's tradition of shinobi-gaeshi, he designs and manufactures anti-climb security spikes that pair real deterrence with architectural beauty — writing from first-hand experience in their engineering, production, and real-world installation.
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Product Used in This Project
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Price on request
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Westwood Residence | Los Angeles
A front gate in Westwood, Los Angeles received a discreet anti-climb upgrade using Classic Short (Black) to reduce climb-over risk while preserving a premium modern look.
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Entry Perimeter Upgrade｜Sherman Oaks | Los Angeles
A Ninja Deterrent project showcasing anti-climb security spikes installed at a entry perimeter upgradesherman oaks location.
Column
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