120-Degree Concealed Hinge For Wide-Opening Overlay Doors

This Grass Tiomos concealed hinge brings a 120-degree swing to overlay doors on both face-frame and frameless cabinets, with a self-close spring and a dowel-mount cup for CNC-friendly installation.

Key Features

• 120-degree opening angle gives noticeably wider access than the standard 110-degree range, useful where doors need to clear deep drawers or adjacent appliances.
• Self-close spring pulls the door shut automatically over the last few degrees of travel.
• Dowel-mount cup presses into pre-bored dowel holes in the door for fast, screw-free door-side installation.
• Works on face-frame and frameless cabinets when paired with the matching Grass base plate, sold separately.
• Three-way adjustment dials height, side, and depth after the door is hung, with up to 3mm in each direction.
• Rated for doors up to 24mm thick, covering standard doors and slightly thicker stock.

Where The Extra Swing Earns Its Place

Most concealed hinges stop at 110 degrees. At 120 degrees, this Tiomos hinge opens the door far enough to clear the side of a deep base cabinet, step aside for a full-extension drawer, or give better reach into a corner unit. That wider arc is the reason to choose this hinge over a standard overlay hinge. The 35mm cup bores into the back of the door, the dowels press into the matching bored holes for a clean screw-free cup attachment, and the arm connects to a Grass base plate mounted to the cabinet. The plate is a separate purchase and must be a Grass Tiomos-compatible plate; plates from other brands will not connect to this hinge.

Steel Build, Nickel Finish, Tiomos Platform

The hinge is steel with a nickel finish. As part of the Grass Tiomos platform, the arm engagement is snap-on, which means the door can be hung and removed without tools once the plate is in place. The three-way adjustment covers height, side, and depth in the plus-or-minus range noted above, so doors can be squared up after installation without removing them. The self-close mechanism is a spring, not a damper: it draws the door shut but does not slow or cushion the contact. For a damped, quiet close at this opening angle, look at the soft-close version of this series.

Right Cabinet, Right Project

This hinge suits cabinetmakers and installers who need the wider 120-degree clearance on overlay doors in both frameless and face-frame boxes. The dowel-mount cup is a natural fit for CNC shops that pre-bore door-side holes as part of their production run, since it eliminates cup screws at the machine. It also works well for replacement projects where the existing bore already accepts a dowelled cup. Standard doors from 16mm up to 24mm thick are within range. For doors thicker than 24mm, a dedicated thick-door hinge is the correct choice.

Common Questions

More Opening, Same Reliable Close

When a standard swing is not enough, this Tiomos hinge delivers the extra clearance overlay doors need, with a self-close spring that brings the door back every time.