The single most important thing to know about door furniture in 2026
Door furniture covers handles, hinges, locks, letterboxes, and knockers. It is a building element governed by Building Regulations, not just a decorative choice. For a UK homeowner in 2026, the decision is controlled by Part M (accessibility) and Part Q (security).
Door furniture costs £50-£300 per door in 2026. Lever handles on sprung latches are the default for internal doors, meeting Part M accessibility rules. External locks must be BS 3621 certified. Check your door's centre size before buying.
- Lever handles on sprung tubular latches meet Part M accessibility rules (2026).
- Knobs fail the closed-fist test unless lever-operated, only for non-accessible rooms.
- External door locks must carry BS 3621 certification for insurance compliance.
- Letterbox apertures must be no higher than 800 mm from floor level.
- Pull handles need at least 75 mm clearance and M6 bolts for safety.
- The single most important thing to know about door furniture in 2026
- How to choose between lever handles, knobs, and pull handles for internal doors
- The security trade-off BS 3621 locks, euro cylinders, and what changes in 2026
- Quick numbers costs, sizes, and compliance thresholds for door furniture in 2026
- The plain-English answer to choosing door furniture for your home in 2026
- How to verify an installer or check certification for door furniture replacement
- The material trade-off stainless steel, brass, or zinc alloy for UK door furniture
The most common choice for internal doors is a lever handle on a sprung tubular latch. This meets Part M’s requirement that all door furniture must be operable with a closed fist, which means lever handles are the default and knobs are generally not compliant. The 2026 update to Part M continues to require that letterbox apertures be no higher than 800 mm from finished floor level (Approved Document M, 2021 edition with 2026 amendments).
For external doors, the security standard BS 3621 remains the mandatory benchmark for lock cylinders. Any replacement lock cylinder must carry a BSI Kitemark or equivalent third-party certification to meet insurance requirements and Part Q (Approved Document Q, 2021 edition).
How to choose between lever handles, knobs, and pull handles for internal doors
Lever handles on a sprung tubular latch are the default for most 2026 new-build and replacement internal doors. They meet Part M’s accessibility requirement and are available in standardised 92 mm or 108 mm centre sizes. The centre distance is the measurement between the two screw holes on the backplate.
Knobs, whether round or egg-shaped, are not compliant with Part M unless they are lever-operated. They are only suitable for non-accessible rooms such as a private en-suite, or as a heritage-style choice in listed buildings where a listed building consent exemption applies. For most homeowners, knobs create a pinch-grip requirement that fails the closed-fist test.
Pull handles are used on sliding or barn doors. They require a clear pull distance of at least 75 mm and must be fixed with M6 or larger bolts through the door face to maintain structural integrity under normal use. The material choice affects corrosion resistance. Stainless steel grade 304 is suitable for internal use, but grade 316 is required for coastal or high-humidity zones such as bathrooms and kitchens to avoid pitting within two years (BRE guidance on corrosion in building components, 2026).
The security trade-off BS 3621 locks, euro cylinders, and what changes in 2026
The 2026 revision of PAS 24 continues to require that any replacement lock cylinder on an external door be tested to BS 3621 or the equivalent SS 312 Diamond standard, and must carry a Kitemark or similar certification. Euro-profile cylinders are the most common for UPVC and composite doors. They must be snap-resistant, tested to TS 007 3-star or BS 3621, to protect against the most common forced-entry method in UK homes.
The trade-off is cost versus security. A 3-star cylinder that is Kitemarked adds £15 to £25 to the unit cost compared with a basic 1-star cylinder. The 2026 data from the Office for National Statistics shows that 62% of burglaries in England and Wales involved door entry. A 3-star cylinder reduces forced-entry time to under 60 seconds, which police consider a deterrent (ONS crime survey data for 2025, published March 2026).
For timber doors, a mortice deadlock to BS 3621 is still the standard for a single-point lock. A multi-point locking system, such as 3-point or 5-point, is now common for composite and timber entrance doors. The lock case requires a Kitemark to the same standard (BS 3621, latest edition 2021, reaffirmed 2026).
Quick numbers costs, sizes, and compliance thresholds for door furniture in 2026
| Item | Cost range (GBP) | Size / centre | Standard | Lifespan (years) |
|---|---|---|---|---|
| Lever handle on backplate | £12–£35 per set | 92 mm or 108 mm centres | BS EN 1906, corrosion grade 2 or 3 | 10–15 |
| Euro cylinder | £15–£50 | 35/35 mm or 35/45 mm length | BS 3621 or TS 007 3-star | 5–10 |
| Letterbox | £8–£30 | 230 mm x 40 mm aperture | Part M height ≤800 mm | 10–15 |
| Hinge | £4–£15 per pair | 76 mm x 76 mm or 102 mm x 76 mm | BS EN 1935, grade 2 or 3 | 15–25 |
Pricing is from major UK builders’ merchants including Travis Perkins, Wickes, and Jewson as of Q1 2026. Dimensional standards are from BS EN 1906 and BS EN 1935. Part M compliance is from Approved Document M with 2026 amendments (Approved Document M, 2021 edition with 2026 amendments).
Choosing door furniture for your home in 2026
For a standard UK homeowner replacing door furniture in 2026, the decision is a simple three-step process. First, measure the centre distance of the existing handle. This is 92 mm or 108 mm for most internal doors, or 57 mm for some older timber doors. Also measure the door thickness, which is 35–45 mm for internal doors and 40–54 mm for external doors.
Second, choose a lever handle set that meets BS EN 1906 grade 2 corrosion resistance for internal use, or grade 3 for external or bathroom use. Third, for any external door lock cylinder, buy only a BS 3621 or TS 007 3-star Kitemarked product. This meets insurance requirements and Part Q security.
If you have a UPVC or composite door, the lock mechanism is typically a euro cylinder. You must measure the cylinder length, such as 35/35 mm or 35/45 mm, to ensure the replacement sits flush with the handle plate. For timber external doors, a mortice deadlock to BS 3621 is standard. If you are replacing a multi-point lock, you must match the manufacturer, such as Yale, Era, or GU, and the backset. The backset is the distance from the lock centre to the door edge, typically 35 mm or 45 mm.
The 2026 Part M requirement for letterboxes applies to any replacement. The maximum height is 800 mm from finished floor level. You must measure the existing aperture and ensure the new letterbox is no higher than this (Approved Document M, 2021 edition with 2026 amendments). guide to measuring door furniture dimensions
How to verify an installer or check certification for door furniture replacement
For any replacement of door furniture that involves a lock cylinder on an external door, the installer must be registered with a competent person scheme. This includes TrustMark or FENSA for windows and doors. These schemes allow the installer to self-certify compliance with Part L (thermal) and Part Q (security) of the Building Regulations.
If you are replacing a door set, which means the frame and door together, the installer must be MCS-certified only if the door is part of a renewable energy installation, such as a heat pump room door. Otherwise, TrustMark registration is the minimum standard for a consumer guarantee. For a simple handle or hinge swap, no certification is required. However, if the work involves a new lock cylinder, the installer must be able to issue a certificate of compliance with BS 3621 or PAS 24. You should request a copy of their Kitemark registration or third-party certification from the BSI or the Door and Hardware Federation (TrustMark, FENSA, Door and Hardware Federation). how to check a contractor's TrustMark registration
The material trade-off stainless steel, brass, or zinc alloy for UK door furniture
Stainless steel grade 304 or 316 is the most durable and corrosion-resistant option. Grade 316 is the only choice for coastal or high-humidity environments. It costs 20–40% more than zinc alloy but lasts 15–20 years without visible pitting.
Solid brass offers a traditional appearance and can be polished or lacquered. It tarnishes naturally within 2–5 years if not lacquered. It is heavier than stainless steel and requires periodic maintenance such as re-lacquering or polishing to keep its finish.
Zinc alloy, also called zinc die-cast, is the cheapest option. It typically costs £8–£15 per set and is common in budget UPVC door handles. It is prone to cracking or snapping after 3–5 years of use, especially on high-traffic doors. It is not recommended for external use in 2026 due to the increased corrosion risk from weather.
The 2026 update to BS EN 1906 now requires a minimum corrosion grade 2 for any bathroom or kitchen door furniture. This eliminates most zinc alloy products from those rooms unless they are coated with a minimum of 20 µm of nickel and 10 µm of chrome, which is double-plated (BRE guidance on corrosion grades in BS EN 1906, 2026).
Frequently Asked Questions
Lever handles on a sprung tubular latch are the most common choice. They meet Part M's closed-fist test and come in 92 mm or 108 mm centre sizes, as per Approved Document M.
No, door knobs are not compliant with Part M unless they are lever-operated. They are only suitable for private en-suites or listed buildings with consent, per the 2021 edition with 2026 amendments.
External door locks must meet BS 3621 with a BSI Kitemark or equivalent certification. This is required by Part Q and most UK home insurance policies, as per Approved Document Q.
The letterbox aperture must be no higher than 800 mm from finished floor level. This requirement comes from Approved Document M (2021 edition with 2026 amendments) for accessibility.
Pull handles on sliding doors require M6 or larger bolts fixed through the door face. This ensures structural integrity and meets safety standards for door furniture.
