Manhole cover buying guide
Updated: 23 October 2026
The replacement title on amazon.co.uk is a single number. That number is often the frame, not the hole, and the load sentence underneath it is often not a class. This manhole cover buying guide is the order of decisions before the [manhole cover comparison](/hub/diy-supplies/manhole-cover): measure the clear opening, name who will cross the cover, then choose a lid only, a solid cover and frame, or a recessed tray. Peter F. checked the sixteen listings on 21 October 2026 against public UK explanations of BS EN 124. We did not load-test a cover. A qualifying purchase can earn a commission at no extra cost to you.
The replacement title on amazon.co.uk is a single number. That number is often the frame, not the hole, and the load sentence underneath it is often not a class.
The replacement title on amazon.co.uk is a single number. That number is often the frame, not the hole, and the load sentence underneath it is often not a class. This manhole cover buying guide is the order of decisions before the manhole cover comparison: measure the clear opening, name who will cross the cover, then choose a lid only, a solid cover and frame, or a recessed tray. Peter F. checked the sixteen listings on 21 October 2026 against public UK explanations of BS EN 124. We did not load-test a cover. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Size basis | Comes with frame | Load claim | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Natotela Natotela FRP cover, 300 mm | 300 x 300 mm stated. Clear opening not given | Bullets include a base. The included-components line says one cover | Up to 1.5 tonnes. No class code | 6.4 | about £19.99 | View offer |
 Natotela Natotela recessed cover, 200 mm opening | Clear opening 200 x 200 mm | Yes | No class and no tonne figure | 8.8 | about £69.99 | View offer | |
| Alternative |  SHMOX SHMOX 320 mm round chamber lid | 320 mm round | No | None. A review says pedestrian only | 6.8 | about £22.89 | View offer |
On this page
Measure the opening, not the old lid
The clear opening is the hole you can see once the old lid is off, from the inside edge of the brick or the plastic riser to the opposite inside edge. The overall size is the outside of the frame, which has to be larger so the frame has a seat. Approved Document H, as published on GOV.UK, notes that an opening may be about 20 mm smaller than the frame so that seat exists. EcoGrid’s note, about 100 mm larger on the covers they sell, is not a rule for every listing here.
Take the lid off, brush the rim, and measure the opening in both directions in millimetres. Then measure the outside of the old frame if it is still sound. A square title can hide a rectangle.
Match the class to who crosses it
BS EN 124, as JDP explains it for UK buyers, groups covers by where they sit. A15 is a 15 kN test load for pedestrians and pedal cycles. B125 is 125 kN, about 12.5 tonnes, and that is the group JDP puts on a private drive, because a braking wheel is not the same as the car sitting still. Those figures are not a certificate unless the seller shows the test.
Up to 1.5 tonnes on the £19.99 Natotela FRP cover is a sentence, not an A15 or B125 mark. If a car or a supermarket delivery will cross the chamber, use the manhole cover for a driveway page. None of the sixteen files shows a Kitemark.
Lid only, or cover and frame
A plastic inspection cap replaces a lid that already sits in a riser. It does not replace the riser. The round SHMOX lid is £22.89, listed as 320 mm, with no frame. Reviews disagree on whether it seats. The square SHMOX lid is £24.50, and its part number SH320SC is the same string as the round lid. Both are pedestrian spares. Neither belongs under a tyre.
A framed cover is the right buy when the old frame is cracked or the wrong size for the new paving. The £19.99 FRP cover is a solid lid at a stated 300 x 300 mm. A recessed tray is a frame plus a shallow box. A 45 mm stated depth on the 200 mm Natotela will not swallow a 60 mm concrete flag.
What these listings do not prove
A star line is a count of ratings on amazon.co.uk, not a load test. The aluminium trays sold as an overall size share 4.2 from 20 reviews. The three stainless Natotela trays share 4.9 from 25. The £19.99 FRP cover and the £139.99 fibreglass cover share 4.4 from 106. The 200 mm clear-opening tray is the file that is not that copy: 4.4 from 71. That is why it is the top pick on the comparison for a measured 200 mm opening, not because a laboratory ranked it.
If the opening, the frame, and the traffic now agree, go back to the comparison. If the only number you have is the title, you are not ready to order.
Common questions
What do I measure on a manhole cover?
Measure the clear opening, which is the hole after the lid is off, in both directions, in millimetres. Then measure the outside of the frame if you are keeping it, and the depth from the chamber rim to the finished surface. The title number on these amazon.co.uk listings is sometimes that outside size. A 200 mm overall frame and a 200 mm clear opening are different products in this set, at £59.99 and £69.99.
Is the title the hole or the frame?
It depends on the listing, and you should not guess. B0F9KRJ3MB states a 200 x 200 mm clear opening and a 270 mm frame. B0GHXLBSZP states 200 x 200 mm as an overall size and never prints an opening. gapino’s title leads with 610 mm, and the bullet says that is the frame around a 600 mm opening. If only one number appears, treat it as incomplete until you have measured the chamber.
Do I need a frame or only a lid?
You need only a lid when a sound riser is already there and you have measured it. The two SHMOX lids, the 320 mm round at £22.89 and the 305 mm square at £24.50, are that kind of spare, and reviews disagree on fit. You need a cover and frame when the old frame is broken or the paving is being relaid. A recessed tray is a framed cover with a box for infill, not a lid-only cap.
Does B125 mean 125 tonnes?
No. In the JDP explanation of BS EN 124, B125 is a 125 kN test load, about 12.5 tonnes, not 125 tonnes. Three stainless bullets in this set write up to 125 tonnes (B125 rating) in one line. That pairing does not match the kilonewton figure, and none of the files shows a certificate. Do not buy a drive cover on the strength of that sentence.
When is a garden tray the wrong cover indoors?
Approved Document H expects an internal cover to be fixed and airtight unless the drain itself is already watertight. The patio trays and solid lids in this comparison do not show that seal. One review of the 200 mm clear-opening tray says it is not lockable. A smell in a kitchen or a utility room is not solved by a recessed slab outside. Use a cover specified for an internal airtight seat, which is outside this set.
Related pages
Sources
Public UK sources and the amazon.co.uk listings compared on this page. Updated 22 October 2026.
- JDP: BS EN 124 explained (retrieved 22 October 2026)
- Radius CTS: BS EN 124 factsheet (retrieved 22 October 2026)
- Approved Document H (retrieved 22 October 2026)
- HSE: Manual handling (retrieved 22 October 2026)
- Manual Handling Operations Regulations 1992 (retrieved 22 October 2026)
- EcoGrid: How to measure a manhole cover (retrieved 22 October 2026)
- Wrekin: Recessed covers in paving (retrieved 22 October 2026)
- Pavingexpert: Recessed cover loadings (retrieved 22 October 2026)
- Drainage Superstore: Replacement manhole covers (retrieved 22 October 2026)