Door Hinge Types Explained

Door hinge types play a bigger role in day to day performance than most homeowners realise. The right hinge keeps a door aligned, quiet and secure for years. The wrong choice leads to sagging, draughts, sticking and early failure. Whether you are fitting a new internal door, replacing tired hardware, or troubleshooting a dropped door, understanding hinge types and how they are used in UK homes will save time, money and frustration.

This guide breaks down the common hinge types used across UK properties, what they cost, how to choose the right size and finish, and where building regulations may affect your choice. It is written from a practical, on site perspective, not theory. Expect real dimensions, common pitfalls, and the sort of detail a joiner or carpenter would look for before fitting.

Why hinge choice matters in UK homes

UK housing stock varies widely, from Victorian terraces with heavy solid doors to modern new builds with light hollow core doors. Hinge selection needs to match the door weight, thickness, use and setting.

A lightweight bedroom door typically uses two 75mm or 100mm butt hinges. A heavier solid door may need three hinges, depending on its weight, height and frequency of use. Fire door hinge requirements must be taken from the fire door manufacturer’s tested hardware schedule and installation instructions. The correct specification cannot be established from the door thickness or fire resistance period alone.

External doors may need security hinges with non removable pins, security studs or separate hinge bolts. This is particularly relevant where a door opens outwards and the hinge knuckle is accessible from outside.

Get this wrong and you will see the classic issues. The door drops on the latch side, it rubs on the frame, or it refuses to latch. If that sounds familiar, you may find it useful to read How to Rehang a Dropped Internal Door in a UK Home Plane the Edge Adjust Hinges and Stop It Catching.

Common door hinge types used in the UK

Below are the hinge types you will most often see in UK domestic properties and small commercial jobs.

Butt hinges

This is the standard hinge for internal and many external doors. Two rectangular leaves are morticed into the edge of the door and the frame so the hinge sits flush.

Typical sizes in the UK are 63mm, 75mm, and 100mm. Thickness is usually around 2mm to 3mm for standard duty, thicker for heavy or fire rated applications.

Where they are used:

• Internal doors, standard and solid core
• External timber doors
• Fire doors when correctly specified

Pros include strength, simplicity and wide availability. Cons are the need for accurate morticing and visible knuckle when the door is shut.

Plain bearing butt hinges are usually adequate for light domestic doors that are opened only a few times each day. They are less suitable for very heavy doors, entrance doors or doors controlled by a closer because friction and wear are concentrated around the pin and knuckles.

Ball bearing hinges

These are a variation of the butt hinge. They include sealed bearings between the knuckles to reduce friction and wear.

They are ideal for heavier doors or high traffic areas, such as kitchens or rental properties where doors see constant use.

Expect to pay around £8 to £20 per hinge depending on size and fire rating, compared to roughly £2 to £6 for standard butt hinges.

A good ball bearing hinge also makes a heavy door feel easier to operate. This can help a door closer shut the door consistently without being set to an unnecessarily strong closing force. Check whether the bearings are maintenance free and whether the hinge carries the certification needed for the intended doorset.

Fire rated hinges

Fire rated hinges are intended for use on fire resisting doors where their documented performance and fitting arrangement match the certified door assembly. Suitable products are tested for defined uses, but a fire rating printed on the hinge packaging does not automatically make that hinge suitable for every FD30 or FD60 door.

UK guidance comes from Approved Document B. You can refer to official fire safety guidance here: https://www.gov.uk/government/publications/fire-safety-approved-document-b.

Homeowners, landlords and installers must follow the door manufacturer’s tested hardware schedule, certification data and installation instructions. These documents should state the permitted hinge model or performance specification, hinge dimensions, screw type, number and positions. They should also state whether intumescent protection is required behind the hinge leaves.

Three 100mm hinges are common on many timber fire doors, but this is not a universal rule. Some certified door assemblies require a different hinge size, grade, quantity or layout. Intumescent pads are also not automatically required in every installation. Their need, thickness, material and location depend on the tested or assessed door specification.

Substituting an unapproved hinge, changing screw lengths or altering hinge positions can compromise the evidence supporting the fire door. If the door label, plug, certificate or fitting instructions are missing, seek advice from the door supplier, manufacturer or a competent fire door installer before carrying out work.

Parliament hinges

These hinges project the door away from the frame, allowing it to open to around 180 degrees clear of architraves or deep reveals.

They are common in period properties with thick walls or decorative mouldings.

They are visible and generally larger, so finish and style matter more here.

The extra projection places more leverage on the screws and frame. Product load tables should therefore be checked rather than assuming that a large Parliament hinge will automatically support a heavy door. Secure fixing into sound timber is essential.

Flush hinges

Flush hinges fit without routing a recess. One leaf nests inside the other.

They are often used on lightweight doors, cupboards or where speed matters more than long term durability.

They are not suitable for heavy doors. Using them on a solid door almost guarantees sagging within months.

Concealed hinges

Also known as Euro hinges, these are commonly used on kitchen cabinets and some modern internal doors.

They are fully hidden when the door is closed, giving a clean look.

Installation requires drilling accurate cup holes, typically 35mm diameter for cabinet hinges.

Full size concealed door hinges are different from cabinet hinges. They are morticed into both the door and frame and are selected using detailed load charts. They can offer adjustment in several directions, but the pockets must be cut accurately and leave enough sound material around the fixings.

Rising butt hinges

These hinges lift the door slightly as it opens. They are useful on doors over thick carpets, helping avoid dragging.

They are handed, meaning you must buy left or right handed versions depending on the door swing.

The lifting action can affect the gap above the door and may not work well with every latch or door closer. Rising butts should not be fitted to a fire door unless they are expressly permitted by the certified door specification.

T hinges

Common on ledged and braced doors, sheds and gates. The long strap spreads load across the door face.

Used more externally or in rustic interiors.

For outdoor use, choose galvanised, stainless steel or another finish rated for the exposure. The hinge should be long enough to spread the load across the ledges rather than relying on the thinner boarding.

Security hinges for outward opening doors

An outward opening external door exposes the hinge knuckle and pin. A basic removable pin hinge could allow an intruder to attack the hinge side even if the lock remains secure.

A security hinge may use a non removable pin, a concealed retaining screw or interlocking studs. The studs enter matching holes in the opposite leaf when the door closes. If the pin or knuckle is cut, the studs still resist the door being pulled away from the frame.

Separate hinge bolts, sometimes called dog bolts, can also be fitted into the hinge edge of a timber door. They engage with the frame when the door is closed. Their positions must not clash with hinge screws, glazing, locks or structural joints.

For a replacement external doorset with tested security performance, use the hinges and security components listed by the doorset manufacturer. Changing them can affect performance claims under standards such as PAS 24. Security is only as strong as the frame fixings and surrounding structure, so fitting expensive hinges to a loose or decayed frame will achieve little.

Door hinge sizes and selection guide

Choosing the right size is essential. Undersized hinges will wear quickly and cause the door to drop.

Door type	Typical hinge size	Typical number of hinges	Notes
Light internal hollow door	75mm	2	Common for bedrooms, subject to hinge load data
Solid core internal door	100mm	2 to 3	Use the certified load limit and fitting configuration
Fire door	As specified by the door manufacturer	As specified by the door manufacturer	Follow the tested hardware schedule, including any intumescent protection
External timber door	Often 100mm ball bearing	Often 3	Check security, corrosion resistance and certified load capacity

There is no reliable rule that sets hinge height as a fraction of door thickness. Hinge size and grade should be selected using the door’s width, height, thickness, actual weight, frequency of use, fitting configuration and any door closer fitted. The hinge manufacturer’s certified load limits and installation data take priority over general rules of thumb.

Door width matters because a wide door creates greater leverage at the hinge edge. A hinge set that carries a narrow 40kg door may not be suitable for a much wider door of the same weight. Some manufacturer tables apply a correction factor for doors that are unusually wide or where the centre of gravity sits further from the hinge line.

Weighing an existing door gives a more dependable figure than guessing from its appearance. If safe to do so, a removed internal door can be weighed using platform scales. For a new door, obtain the declared weight from the supplier and add the weight of glazing, protective plates and other fitted hardware where required.

Understanding BS EN 1935 grades

BS EN 1935 covers single axis hinges used on windows and pedestrian doors. Products are classified using several performance categories, including category of use, durability, test door mass, suitability for fire or smoke doors, safety, corrosion resistance and security.

The final hinge grade runs from 1 to 14. A higher number generally represents a more demanding combination of door mass and durability, but the grade number should not be read as a simple weight limit on its own. Check the complete classification and the manufacturer’s declaration for the proposed use.

Durability testing reflects a specified number of operating cycles. Domestic doors with occasional use place less demand on hinges than communal entrance doors, busy office doors or doors in schools. Test door mass categories extend through progressively heavier doors, up to 160kg in the standard’s classification system.

A hinge should also have an appropriate corrosion grade for its location. An internal hinge in a dry bedroom faces very different conditions from one fitted to a coastal entrance door. Fire suitability and security are separately identified within the classification, so a hinge that carries a heavy door is not automatically approved for fire or security applications.

Ask the supplier for the BS EN 1935 classification, certificate or declaration of performance where relevant. Avoid relying only on descriptions such as heavy duty, commercial quality or suitable for all doors. Those phrases do not provide a certified load limit.

Door closers and high usage

A door closer adds repeated operating forces to the hinges. The hinge set carries the door while also resisting the opening and closing action, including the final latch movement. Backcheck and delayed closing functions can add further demands.

Manufacturer load tables often require an allowance for doors fitted with closers. The recommended hinge grade or quantity may increase, particularly for wide, heavy or frequently used doors. Ball bearing hinges are commonly chosen because they reduce friction and withstand repeated movement better than basic plain bearing hinges.

High usage also changes the selection. A family bathroom door and a communal corridor fire door might have similar dimensions, but the communal door could operate hundreds of times each day. Use the category of use and durability classification that matches the real setting.

Do not compensate for poor hinges by increasing a closer’s power. Excessive closing force makes the door harder to use and increases stress on the hinges, frame and fixings. The closer, latch, seals and hinges should work together as a compatible system.

Finishes and materials

Finish is not just about looks. It also affects durability, corrosion resistance and compatibility with other ironmongery.

Common finishes include:

• Brass, polished or satin, traditional and warm in tone
• Chrome, bright or satin, common in modern homes
• Black, popular in period and industrial style interiors
• Stainless steel, best for external or damp environments

In coastal areas or bathrooms, stainless steel or high grade plated finishes will last longer. Cheaper plated hinges can pit or rust within a year if exposed to moisture.

Not every stainless coloured hinge is solid stainless steel. Some are plated steel, which may corrode once the coating is scratched. For exposed locations, check the base material and corrosion classification rather than choosing by colour alone.

Fixings need the same consideration. A corrosion resistant hinge fitted with unsuitable steel screws can stain, seize or fail. Use the screws supplied or those specified by the manufacturer, particularly on fire doors, security doors and certified doorsets.

Costs and typical UK pricing

Costs vary widely based on quality, size and compliance requirements.

• Standard butt hinge, £2 to £6 each
• Ball bearing hinge, £8 to £20 each
• Fire rated hinge, £10 to £30 each
• Parliament hinge, £15 to £40 each

Labour for fitting hinges is usually bundled into door installation. As a rough guide, the following figures are labour only unless a written quote expressly includes hinges, other materials and VAT:

• Replacing hinges on an existing door, £50 to £120 per door
• Hanging a new internal door including fitting the hinges, £80 to £180 per door
• Installing a fire door leaf into a suitable existing frame, around £180 to £400 where the work is straightforward and certification requirements are clear

The fire door figure is not the total cost of supplying and installing a complete compliant fire doorset. A straightforward new timber fire doorset, including the certified leaf, compatible frame, seals, hinges, closer, latch and professional installation, commonly costs around £700 to £1,500. Glazed, oversized, acoustic, security rated or bespoke doorsets can cost considerably more.

Repairing or replacing the frame, altering openings, making good decorations, removing asbestos containing materials or upgrading surrounding fire stopping will add to the price. Certification, inspection and record keeping may also carry separate charges.

Prices vary by region, access, parking, door condition and the level of certification required. London and parts of the South East are often more expensive. VAT depends on whether the tradesperson or company is VAT registered, so ask whether it is included before comparing quotations.

Timewise, an experienced carpenter will fit a pair of hinges in 30 to 60 minutes, including marking out and chiselling recesses. Replacement work can take longer if old screws are seized, mortices have been cut badly or the frame needs repair.

How hinges are fitted correctly

Accurate fitting is what separates a smooth swinging door from one that constantly needs adjustments.

The process includes marking hinge positions, often around 150mm from the top and 230mm from the bottom for standard doors. These measurements are common site practice rather than a universal requirement. Existing frame positions, hinge instructions and any certified door schedule may specify something different.

A third hinge is often positioned between the other two, but it is sometimes placed closer to the top hinge to help resist the greater loading at the head of the door. Follow the hinge and door manufacturer’s fitting details.

The carpenter will score around the hinge, chisel a recess to the exact depth of the leaf, and drill pilot holes to prevent splitting. Screws should be fully seated, not proud.

Misaligned hinges cause binding. Over recessed hinges create gaps. Under recessed hinges stop the door closing properly.

If you plan to install handles alongside hinge work, see How to Fit a Door Handle and Latch in a UK Home Measure Backset, Drill Holes and Fix Common Alignment Problems for exact measurements and techniques.

How to measure existing hinges

Start by closing the door and checking the gaps at the head, latch side and threshold. Uneven gaps can reveal whether the door has dropped or whether the frame itself is out of square.

Open the door and measure the overall hinge height. Then measure the width of both leaves with the hinge opened flat, along with the leaf thickness, knuckle diameter and corner shape. Record whether the corners are square or rounded.

Count the screw holes and note their pattern. Two hinges described as 100mm can have different leaf widths and hole positions. A like for like replacement reduces the amount of filling and recutting needed.

Check the projection of specialist hinges and establish the handing of rising butts. For external hinges, identify whether the pin is removable and whether security studs or hinge bolts are present.

Measure the door’s height, width and thickness. Confirm its construction and weight where possible. Record whether a closer, glazing or heavy face mounted hardware is fitted. On a fire door, locate the label or certification mark and obtain the hardware schedule before ordering anything.

Replacing hinges step by step

1. Support the door securely with wedges and obtain help for heavy doors. Remove the hinge pins if the design permits, or unscrew the leaves while the door remains supported.
2. Remove the door and lay it on stable trestles. Do not balance a heavy door against a wall where it can fall.
3. Clean the old mortices and check for split timber, loose plugs, crushed edges or decay. Repair defects before fitting new hardware.
4. Offer the new hinge into each recess. The leaf should sit flat and flush without rocking. Mark any small adjustments with a sharp knife.
5. Trim the mortice carefully using a sharp chisel or router. Avoid making the recess deeper simply to force the door into alignment.
6. Drill pilot holes at the correct diameter. Keep the drill square so the screw heads seat evenly in the countersinks.
7. Fit one screw in each leaf first, rehang the door and check the gaps. Make small corrections before installing all remaining screws.
8. Tighten the screws firmly without stripping the timber. Test the full swing, latch action and clearance over the floor.
9. For an external or fire door, confirm that seals, closer action, security devices and latch engagement still work as intended.

Replacing one hinge at a time while the door remains in place is possible on a light door, but the door still needs firm support. Removing it usually gives better access and allows the mortices and frame to be inspected properly.

Repairing loose screw holes and worn frames

Loose hinge screws are a common cause of repeated door drop. Tightening them may provide a temporary improvement, but a screw will not hold if the timber around it has become enlarged or crushed.

For a sound timber frame with an isolated loose hole, remove the screw and inspect the depth of solid material. A longer screw of the correct gauge may reach sound timber behind the damaged section. Check for concealed cables, pipes, glazing and masonry before increasing screw length.

Another durable repair is to drill out the damaged hole neatly, glue in a close fitting hardwood dowel, allow the adhesive to cure and then drill a fresh pilot hole. The dowel should be properly bonded and trimmed flush. Packing holes with loose matchsticks is less reliable, especially on heavy or frequently used doors.

If several holes have failed, the hinge recess is split or the frame edge has broken away, a larger timber repair may be required. A carpenter can cut out the damaged area and splice in matching sound timber, then recut the mortice. The repair must be well bonded and mechanically secure.

Rotten external frame timber should not be hidden with filler and longer screws. Find and correct the source of moisture, then replace the affected section or frame. Security hinges and locks cannot perform properly in decayed timber.

A worn frame may also move because its fixings to the wall have failed. Look for cracking around the architrave, movement when the door operates or a frame that has twisted. Frame fixing and alignment should be corrected before the door is planed, otherwise the problem is likely to return.

Fire door repairs require particular care. Do not splice, plug or alter a certified fire door or frame unless the repair method is permitted by the manufacturer, certification scheme or a competent fire door specialist. Unauthorised repairs can affect the door’s fire and smoke performance.

Composite and uPVC doors use engineered hinge systems that differ from timber butt hinges. Adjustment should follow the doorset manufacturer’s instructions. Damaged reinforcement, stripped machine fixings or a distorted outer frame may need specialist repair rather than larger screws.

Building regulations and safety considerations

Hinges intersect with fire safety regulations more than most people expect.

Approved Document B provides guidance for meeting fire safety requirements in England. Scotland, Wales and Northern Ireland have their own building standards or regulations and supporting guidance. Requirements can differ, so use the documents that apply where the property is located.

Fire doors are required in certain situations such as some loft conversions, new builds and refurbishment projects. Fire doors must be fitted with compatible hinges that have suitable evidence for use as part of that particular fire door assembly.

The fire door manufacturer’s tested hardware schedule and installation instructions are the primary references for hinge selection and positioning. They may also cover closer type, latch or lock, smoke seals, intumescent seals, glazing and allowable gaps.

In HMOs and rental properties, compliance is more strictly enforced. Landlords should ensure all fire door hardware is suitable, maintained and included in routine inspections. The responsible person for premises covered by fire safety legislation should retain relevant installation and maintenance records.

General product standards often reference BS EN 1935 for single axis hinges. This standard grades hinges by factors including load capacity, durability and corrosion resistance. More details can be found via the British Standards Institution: https://www.bsigroup.com.

Building regulations do not replace product installation instructions. A hinge can comply with a product standard yet still be unsuitable for a particular door because the door is too wide, too heavy or used too frequently.

Common problems caused by the wrong hinge

Many call outs come down to hinge issues rather than the door itself.

• Door dropping on the latch side due to undersized or worn hinges
• Doors not latching because alignment has shifted
• Squeaking from poor quality hinges or lack of lubrication
• Binding against the frame due to incorrect recess depth
• Screws repeatedly loosening because the frame timber is damaged
• Rapid wear where a closer has been fitted to hinges with insufficient durability
• Corrosion on external hinges with an unsuitable finish or material

If your door refuses to catch properly, this guide may help diagnose the issue: How to Fix a Door That Will Not Latch Properly in a UK Home.

For noise problems, basic maintenance can go a long way. See How to Stop a Door Hinge Squeaking in a UK Home Clean Lubricate and Tighten It Properly.

Before planing a sticking door, inspect the hinges and frame. Removing timber from the latch edge can create an excessive gap if the real fault is a loose top hinge. On fire doors, excessive edge gaps can affect smoke and fire performance.

Common mistakes to avoid

These are the errors seen time and again on site.

• Using too few hinges for the door weight, width, usage or manufacturer’s specification
• Assuming three hinges are automatically suitable for every fire door
• Choosing cheap plated hinges in bathrooms or external doors, leading to corrosion
• Poor mortice work, either too deep or uneven
• Not using pilot holes, causing screws to snap or wood to split
• Mixing finishes between hinges and handles, creating a mismatched look
• Ignoring manufacturer instructions for fire rated hardware
• Choosing hinges by dimensions alone without checking certified load limits
• Fitting ordinary removable pin hinges to an outward opening external door
• Using longer screws without checking what is behind the frame
• Planing the door before repairing loose hinges or frame movement

These issues often lead to repeat work within a year.

Practical checklist before you buy

• Measure the door height, width and thickness
• Establish the door weight, including glazing and fitted hardware
• Check if the door is fire rated and obtain its hardware schedule
• Check the hinge manufacturer’s certified load and width limits
• Allow for high usage and any door closer
• Confirm the required number and positions of hinges
• Match the finish with handles and latches
• Consider the environment, dry, humid, coastal or external
• Check the corrosion resistance classification
• Confirm handedness for specialist hinges like rising butts
• Choose security hinges or hinge bolts for exposed outward opening doors
• Inspect the frame and screw holes before ordering replacements
• Buy quality fixings, not just hinges

FAQ

How many hinges does an internal door need in the UK?

Most lightweight standard internal doors use two hinges. A heavy, wide, tall or frequently used door may require three or more, depending on the hinge manufacturer’s load data and fitting configuration. A door closer can also increase the required grade or quantity.

Fire door quantities must follow the tested hardware schedule for the certified door assembly. Three hinges are common, but should not be treated as a universal minimum for every fire door.

What size hinge should I use for a 35mm internal door?

A 75mm hinge is typically sufficient for a lightweight hollow door under normal domestic use. For solid core doors at the same thickness, many carpenters use 100mm hinges for added strength and smoother operation.

Door thickness alone does not determine hinge size. Confirm the door’s weight, width, height and usage, then compare these details with the hinge manufacturer’s certified load limits.

Do I need special hinges for fire doors?

Yes. The hinges must have suitable evidence for use on the specific fire door assembly and must match the door manufacturer’s tested hardware schedule and installation instructions. BS EN 1935 classification is relevant, but it does not by itself confirm compatibility with every fire door.

Use the specified hinge size, grade, quantity, positions and fixings. Fit intumescent protection only where the certified specification requires it, using the stated material and thickness.

Why does my door keep dropping after I replace hinges?

This often happens if the frame is worn, screw holes are loose, the door is too wide or heavy for the hinges, or the hinge mortices do not align. A frame that is moving away from the wall can produce the same symptoms.

Repairs may involve fitting a correctly sized hardwood dowel into a damaged screw hole, using an approved longer fixing into sound timber, repairing the frame or upgrading to a suitable hinge grade. Simply tightening loose screws rarely provides a lasting repair where the timber has failed.

Can I replace hinges without removing the door?

It is possible but rarely practical for accurate work. A light door can sometimes be supported and the hinges changed one at a time. Removing the door allows proper alignment, clean morticing and safer inspection of the frame and screw holes. Most professionals will take the door off for a full hinge replacement.

Which hinges should I use with a door closer?

Choose hinges whose manufacturer permits use with a closer at the door’s actual weight and width. Ball bearing hinges with an appropriate BS EN 1935 durability and load grade are often suitable. High traffic doors may need a higher grade or a different hinge arrangement than an occasionally used domestic door.

How can I make outward opening doors more secure?

Use hinges with non removable pins or security studs, together with suitable hinge bolts where the door design permits. The frame, screws, locks and surrounding structure must also be secure. For a tested external doorset, follow the manufacturer’s approved hardware schedule rather than changing individual components without confirmation.

Final Thoughts

Hinges are one of those small details that have a big impact on how your home feels day to day. Get them right and doors operate smoothly for years with minimal maintenance. Cut corners and the problems show up quickly, usually as sticking, noise or poor alignment.

Measure the complete door, consider its weight and usage, and use certified manufacturer data rather than relying only on hinge length. External security, corrosion exposure, door closers and fire door certification can all change the correct specification.

If you are unsure which hinge type suits your doors or you want a clean professional finish, it is worth bringing in an experienced joiner. You can post a job on BookaBuilderUK to get free quotes from vetted local tradespeople who can supply and fit the right hinges properly.