David Bolton Sourcing Door Hardware for Historic Restoration: Period Accuracy, Modern Code, and What to Specify What This Guide Covers and Who It Helps Historic restoration projects sit at a difficult intersection: the owner wants hardware that looks like it belongs to the building's original era, the architect... architectural hardware historic restoration mortise locks period door hardware reproduction hardware Jul 20, 2026 Our Blog
David Bolton The 3-Knuckle Concealed Bearing Hinge: When Streamlined Appearance and Commercial-Grade Performance Have to Coexist What This Guide Covers When a door schedule calls out a 3-knuckle concealed bearing hinge, two questions usually follow: Does the reduced knuckle count change anything structurally? And why does a spe... NRP hinges architectural hardware commercial hinges concealed bearing hinge specification Apr 23, 2026 Our Blog