Butt Hinges Explained: A Guide to Choosing the Right Door Hinge
Butt hinges are one of the most commonly used types of door hinge, found on everything from lightweight internal doors to heavier and more frequently used doors.
Although their design is relatively simple, choosing the right butt hinge involves more than matching the size and finish. Door weight, dimensions, frequency of use, hinge construction and any fire-door requirements should all be considered.
In this guide, we explain what a butt hinge is, the different types available, common hinge sizes and what to look for when choosing the right hinges for your doors.
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What Is a Butt Hinge?
A butt hinge consists of two metal leaves joined around a central pin. One leaf is normally recessed into the edge of the door, while the other is recessed into the door frame.
When the door is closed, the leaves sit between the door and frame, with primarily the knuckle remaining visible.
This simple and proven design makes butt hinges suitable for a wide range of domestic and commercial doors, provided the particular hinge is correctly specified for the application.
What Are the Parts of a Butt Hinge?
The main components are:
- Leaves – the flat sections fixed to the door and frame.
- Knuckle – the cylindrical sections where the leaves meet.
- Pin – passes through the knuckle and creates the pivot point.
- Screw holes – countersunk holes used to secure the leaves.
What Types of Butt Hinges Are Available?
Although butt hinges share the same basic design, there are several different types. The best choice depends on factors including the door's weight, dimensions and frequency of use.
Plain Bearing Butt Hinges
Plain bearing butt hinges use a relatively simple pin-and-knuckle construction without ball bearings.
They can provide a practical and economical solution for lighter internal doors and appropriate lower-demand applications, provided the hinge specification is suitable for the door.
Ball Bearing Butt Hinges
Ball bearing hinges incorporate bearings between the hinge knuckles to help reduce friction as the door opens and closes.
Their smooth operation and durability make them particularly useful for heavier doors and frequently used doors.
Washered Butt Hinges
Washered butt hinges incorporate washers between the knuckles to help reduce friction and wear.
Depending on their specification, they can be a useful choice for internal doors and other suitable applications.
Rising Butt Hinges
Rising butt hinges are designed to lift the door slightly as it opens.
This can provide additional clearance over carpets and certain floor coverings, with the door lowering again as it closes.
Always check that a rising butt hinge is suitable for the particular door and application.
Plain Bearing vs Ball Bearing Butt Hinges
| Feature | Plain Bearing Butt Hinge | Ball Bearing Butt Hinge |
|---|---|---|
| Typical use | Lighter internal doors | Heavier or frequently used doors |
| Construction | Pin and knuckle | Incorporates ball bearings |
| Movement | Conventional hinge movement | Bearings help reduce friction |
| Durability | Suitable for appropriate lighter applications | Suited to more demanding applications |
| Cost | Generally lower | Generally higher |
Choice Handles Tip: Don't choose a hinge solely because it is described as ball bearing. Check the manufacturer's specifications for the door dimensions, weight and intended application.
What Size Butt Hinge Do I Need?
Butt hinges are available in a variety of sizes, with 76mm (3 inch) and 102mm (4 inch) among the sizes commonly encountered for doors.
However, hinge size alone does not determine suitability.
When choosing hinges, consider the door's:
- Weight
- Height and width
- Thickness
- Frequency of use
- Intended application
- Required hinge quantity
- Fire-door requirements, where applicable
A physically larger hinge isn't automatically suitable for a heavier door, and adding more lightweight hinges doesn't necessarily make them suitable for a door beyond their specified capacity.
Always check the manufacturer's recommended door weight, dimensions and intended application.
How Many Butt Hinges Does a Door Need?
Many standard lightweight internal doors are traditionally fitted using two or three hinges, but there isn't one quantity that's correct for every door.
Using three hinges on a lightweight door can provide additional support and may help reduce the risk of twisting or warping over time.
Heavier, taller or more frequently used doors may require a different hinge arrangement.
We've covered this subject in greater detail in our dedicated How Many Hinges Does a Door Need? guide.
[READ: HOW MANY HINGES DOES A DOOR NEED?]
Can Butt Hinges Be Used on Fire Doors?
Yes, suitable butt hinges can form part of a fire-door assembly, but not every butt hinge is suitable for a fire-door application.
A hinge being 76mm or 102mm does not by itself tell you whether it is suitable for a fire door.
The particular hinge's performance, supporting test or certification evidence and compatibility with the relevant door or doorset requirements need to be considered.
Always check the hinge manufacturer's documentation and the requirements of the particular door or doorset rather than relying on appearance or hinge dimensions alone.
Choice Handles Tip: Never assume that two hinges of the same physical size offer the same performance. Check the individual hinge specification and, for fire doors, the requirements of the particular door or doorset.
Choosing the Right Butt Hinge Finish
Once you've established the correct technical specification, you can choose a finish that complements the rest of your door furniture.
Depending on the hinge range, popular options include satin and polished stainless steel, satin and polished chrome, satin nickel, polished and satin brass, antique brass, bronze and matt black.
Coordinating your hinges with your door handles, door knobs, locks, latches and other architectural ironmongery can create a more considered and consistent finish throughout an interior.
How to Choose the Right Butt Hinge
Before ordering, check:
1. Door dimensions and weight
Make sure the hinge specification is appropriate for the door.
2. Frequency of use
A frequently used commercial door can place greater demands on its hinges than a lightly used bedroom door.
3. Hinge construction
Decide whether a plain bearing, washered, ball bearing or another hinge type is appropriate.
4. Manufacturer's specification
Check the stated performance, load capacity, recommended door dimensions and intended application.
5. Fire-door requirements
Where applicable, ensure the hinge is suitable for the requirements of the particular fire-door assembly.
6. Finish
Once the technical requirements are satisfied, select a finish that complements your other door furniture.
Choice Handles Tip: Choose hinges by performance first and appearance second. Two hinges can look very similar while being designed for very different applications.
Shop Butt Hinges at Choice Handles
At Choice Handles, you'll find a wide selection of butt hinges and door hinges for domestic and commercial applications, with different sizes, specifications and finishes available.
Explore our Butt Hinges, Ball Bearing Hinges and Fire Door Hinges, alongside matching door handles, door knobs, locks, latches and architectural ironmongery to complete your project.
Looking for More Help & Advice?
Explore the Choice Handles Help & Advice Centre for practical guides covering door hinges, handles, knobs, locks, latches and other architectural ironmongery.
Whether you're choosing products for a single internal door or planning a larger project, our guides are designed to help you select the right door hardware with confidence.