David Bolton Mixed Corner Preps on Spring Hinge Replacements: Why the Square-by-Radius Profile Gets Ordered Wrong Before the Door Is Ever Measured What This Article Covers and Who It Helps When a spring hinge fails on a self-closing door and a replacement is needed, most contractors focus on size and finish. The detail that actually causes rewor... fire-rated hardware hinge corner profile replacement hinges self-closing doors spring hinges Jun 17, 2026 Our Blog
