Concealed Hinge Opening Angles: What Do 90°, 110°, or 165° Mean?
The opening angle of a concealed hinge defines how far a cabinet door can swing open. Standard cabinet hinges open in the range of 90° to 110°, whereas wide-angle hinges achieve angles from 155° to 165°. Choosing the right angle depends on the cabinet position, internal pull-outs, and the required accessibility.
What Exactly Is the Opening Angle?
The concealed hinge is the central moving element of modern furniture construction. It connects the furniture front via the hinge cup recessed into the door to the cabinet side, where the cruciform mounting plate is screwed in place. The opening angle describes the exact degree of maximum rotational movement of the door around its axis. The hinge mechanism acts like a physical barrier on the cabinet carcass – it dictates the swivel radius and halts the movement precisely when the defined end point is reached to prevent the door from tearing out.
Types and Variations of Opening Angles
The kinematics of cabinet doors require different opening widths depending on the spatial layout. The industry primarily distinguishes between standard and wide-angle ranges:
- 90° to 95°: These hinges are often found on older pieces of furniture or on cabinets positioned directly against a wall. An opening angle of 90° is sufficient for loading shelves. Suitable 90-degree concealed hinges / cabinet hinges prevent the door from slamming hard against the adjacent room wall.
- 110°: The absolute standard dimension in modern furniture making. Kitchen cabinets, wardrobes, and bathroom furniture are almost exclusively fitted with this angle. 110-degree concealed hinges / cabinet hinges offer convenient access into the carcass without projecting too far into the room.
- 155°: This angle is required for cabinets with internal drawers (undermount runners). 155-degree concealed hinges / cabinet hinges often feature zero protrusion. This means that the open door swings completely clear of the internal carcass width, ensuring the drawer runner does not rub against the door edge when pulled out.
- 165°: The classic wide-angle hinge. It is used when maximum access is required, such as in corner cabinets with folding doors or large larder units. 165-degree concealed hinges / cabinet hinges fold the door back almost parallel to the adjacent cabinet front.
Dimensions, Standards, and Typical Values
The opening angle is only one technical parameter of a hinge. For correct installation, further dimensions and standards must be observed:
- Cup drilling: The standard diameter for the hole drilled into the door is 35 mm. Mini hinges use 26 mm. Compatible 35 mm concealed hinges cover 95% of all standard applications.
- Drilling pattern: The distance between the fixing screws on the cup (usually 45 mm, 48 mm, or 52 mm).
- Overlay type: The angle functions independently of the door's position on the carcass. A 110° hinge is available as full overlay (the front completely overlays the carcass side, see full overlay concealed hinges), as half overlay (two doors share a central partition, see half overlay concealed hinges), or as inset (the door sits flush between the carcass sides, see inset concealed hinges).
Practical Application & Selection
When planning a cabinet, the choice of angle depends on the interior fittings and the surrounding environment. If fronts are situated closely side by side, the standard 110° is sufficient. If pull-out shelves or wire baskets are installed behind the hinged door, an angle of at least 155° with zero protrusion is mandatory.
Furthermore, modern closing kinematics are almost always complemented by integrated damping. Concealed hinges / cabinet hinges with soft close catch the door just before it shuts and pull it silently against the carcass over the final millimetres, regardless of whether the door is closed from a 90° or 165° angle.
Related Terms
- Cruciform mounting plate
- Zero protrusion
- Cup drilling
- Soft-close
Matching Category
All technical variants, from specialist angles to standard solutions for furniture construction, can be found in the main concealed hinges / cabinet hinges category.