Feb 23, 2026
Entry Perimeter Upgrade|Sherman Oaks | Los Angeles
A Ninja Deterrent project showcasing anti-climb security spikes installed at a entry perimeter upgradesherman oaks location.

Continuous anti-climb spike installation on a perimeter wall near W Sunset Blvd in Hollywood, Los Angeles, maintaining a clean architectural look while securing the property.
Right near W Sunset Blvd in Hollywood. In a location with a lot of foot traffic and visibility, this residence needed "high-performance perimeter security." However, they didn't want to spoil the clean architectural feel of the white-painted exterior walls.
Classic short dual (double blade) was installed continuously across the entire top of the boundary wall. The finish combines White finish + Stainless to match the bright stucco and coping texture of the site. The important thing is "continuity." Because climbing only requires one "starting point," the layout avoids creating any gaps or weak seams. In particular, we focused on eliminating weaknesses in corners / pillars / gate approaches where attempts are most likely to begin.
Classic short dual is placed continuously on the "coping" to eliminate climbing points while keeping the white wall clean.
From the street, the spikes can be read as a delicate, rhythmic topline. On the other hand, the message becomes clear at close range. No holds, no footholds, no "safe place" to swing a leg. We have created a sophisticated perimeter line that secures the practical anti-climb performance required for a busy Hollywood corridor.
A thin, architectural topline - subtle from the street, decisive up close.
Corners are reinforced to eliminate potential "starting points" for climbing.
Tight spacing and clean installation ensure both a high-quality finish and effective deterrence.
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.
Feb 23, 2026
A Ninja Deterrent project showcasing anti-climb security spikes installed at a entry perimeter upgradesherman oaks location.
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Guides & Insights
Jul 4, 2026
A clear guide to the legality of anti-climb spikes — height, warning signage, and liability — plus a steel vs stainless vs plastic comparison and FAQ. Educational, not legal advice.
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Jul 3, 2026
Who makes Otani Ninja Deterrent (Ninja Deterrent / Saitaniya Co.), how it differs from generic 'ninja deterrent' spikes, what shinobi-gaeshi means, and where to buy authentic Japanese-made products.
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Jul 3, 2026
A step-by-step guide to installing anti-climb spikes on walls, fences and gates — spacing, fixing method, outward angle, height, tools, and the legal/liability basics.
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