Screw-On Thick Door Hinge for Inset Doors

This Grass Tiomos hinge is built for thick cabinet doors set to an inset position, mounting to face-frame and frameless cabinets with a screw-on connection and a self-close spring that draws the door shut.

Key Features

• Thick door construction accommodates doors up to 36mm, where a standard cup would not seat correctly.
• Inset geometry positions the door flush inside the cabinet opening with an even reveal on all sides.
• 95 degree opening angle is the engineered swing for thick doors, giving the clearance a heavy door needs without binding the cabinet front.
• Self-close spring pulls the door shut automatically over the last few degrees of travel.
• Screw-on mounting fastens directly to the cabinet for a firm, tool-accessible connection on both face-frame and frameless boxes.
• Three-way adjustment allows up to 3mm of correction in height, side, and depth after the door is hung.

Where Thick Inset Doors Need a Different Hinge

An inset door sits flush inside its opening rather than over the cabinet face, and thick doors, those beyond about 22mm, need a deeper cup and modified arm geometry that a standard concealed hinge cannot provide. This Tiomos hinge bores a 35mm cup into the door at 12.6mm depth and uses a full crank arm to carry the inset position while still clearing the cabinet front as the door swings. The 95 degree opening is intentional: at that arc, a door up to 36mm thick clears the cabinet without collision. A wider swing on a door this thick would cause it to bind. The 45mm boring pattern matches standard Grass Tiomos layout, and the hinge mounts to a Grass base plate, ordered separately, which attaches to the cabinet side or face-frame stile.

Steel Build in a Nickel Finish

The hinge is steel with a nickel finish. Screw-on mounting means the arm-to-plate connection is secured with fasteners rather than a tool-free clip, which suits installations where a locked-down, service-accessible joint is preferred over quick-disconnect convenience. After the door is set, the three-way adjustment range brings the inset reveal into alignment without re-boring: up to 3mm of correction in height, side, and depth covers most settling and fitting variation.

Who Reaches for This Hinge

This hinge is for cabinet makers and builders working with thick door stock on inset applications, whether the box is frameless or face-frame. Thick inset doors appear in furniture-style cabinetry, pantry builds with heavy solid-wood fronts, and commercial millwork where door mass is driven by material or design. If the door is standard thickness in the 16 to 22mm range, a standard inset hinge is the right pick. For thick doors that need a quiet damped close rather than a spring pull, a soft-close Tiomos thick door hinge is the closer match. Use the Grass load table to confirm the number of hinges for the door height and weight.

Common Questions

Thick Doors, Flush Fit, Closed Automatically

When the design calls for an inset door in heavy stock, this Tiomos hinge delivers the geometry, clearance, and spring-close action to make it work on either cabinet type.