Soss 218US15 Heavy Duty Invisible Hinge Satin Nickel

Product Description

The SOSS 218US15 is a heavy-duty invisible hinge designed for 1-3/4 inch thick doors in residential and light commercial applications. When the door is closed, the hinge conceals entirely within the door and frame, leaving a clean, uninterrupted edge with no exposed hardware. The satin nickel finish provides a durable, corrosion-resistant surface suited to high-traffic openings. Measuring 1-1/8 inches wide by 4-5/8 inches in length, this hinge is sized for solid wood or solid-core doors where standard butt hinges would compromise the visual finish. Installation requires precision routing and is typically performed by a finish carpenter or millwork installer.

The 218US15 is suited for interior door applications where a flush, hardware-free appearance is required. Common use cases include high-end residential entry and interior doors, hospitality millwork, and architectural cabinetry requiring a seamless closed-face profile. The heavy-duty construction handles the demands of 1-3/4 inch door slabs without deflection or binding over repeated cycles. This hinge ships as a single unit (sold individually).

Key Features

• Fully concealed design — no visible hardware when door is closed
• Heavy-duty construction rated for 1-3/4 inch door thickness
• Satin nickel finish for corrosion resistance and neutral aesthetic
• 1-1/8 inch x 4-5/8 inch form factor for precise mortise routing
• Sold individually — order quantity as needed per opening

Compatibility

Designed as an OEM-style replacement or new-installation invisible hinge for 1-3/4 inch solid wood or solid-core doors requiring a fully concealed hinge mortise.

Installation Notes

Installation requires a router and appropriate mortise template to achieve the precise pocket dimensions required for a flush fit in both the door edge and the door frame. Power to any associated electric hardware should be shut off before working on the door assembly. This hinge should be installed by a qualified finish carpenter or door hardware installer familiar with concealed hinge mortising techniques. Follow applicable local building codes for door hardware requirements in commercial or egress applications.