How to fit a manhole cover
Updated: 23 October 2026
You already have a cover and frame, or a recessed tray, and you are about to bed it. The usual failure is a frame that overhangs the brick, a bed that lets the lid rock, or a tray you filled and then tried to lift alone. This is how to fit a manhole cover on a domestic chamber. It is not a ranking. The rows are the [manhole cover comparison](/hub/diy-supplies/manhole-cover). Peter F. wrote this on 21 October 2026 from those listings and from UK notes by Wrekin, Clark-Drain, and the Health and Safety Executive. We did not bed a cover. A qualifying purchase can earn a commission at no extra cost to you.
You already have a cover and frame, or a recessed tray, and you are about to bed it. The usual failure is a frame that overhangs the brick, a bed that lets the lid rock, or a tray you filled and then tried to lift alone.
You already have a cover and frame, or a recessed tray, and you are about to bed it. The usual failure is a frame that overhangs the brick, a bed that lets the lid rock, or a tray you filled and then tried to lift alone. This is how to fit a manhole cover on a domestic chamber. It is not a ranking. The rows are the manhole cover comparison. Peter F. wrote this on 21 October 2026 from those listings and from UK notes by Wrekin, Clark-Drain, and the Health and Safety Executive. We did not bed a cover. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Cover type | Comes with frame | How you lift it | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Natotela Natotela stainless tray, 600 mm opening | Recessed tray | Yes | Reviews say keys were missing or small | 7.3 | about £119.99 | View offer |
| Best value |  Natotela Natotela FRP cover, 300 mm | Solid lid, cross pattern | Bullets include a base. The included-components line says one cover | Galvanised iron ring | 6.4 | about £19.99 | View offer |
 Natotela Natotela recessed cover, 200 mm opening | Recessed tray | Yes | Lifting keys. Allen bolts release lugs, in a review | 8.8 | about £69.99 | View offer |
On this page
Check the opening and the depth
Lift the old lid and measure the clear opening in both directions before any mortar is mixed. If the frame is wider than the brick, the unsupported lip is the piece that cracks later. Wrekin’s paving guide tells you not to leave the frame overhanging. Measuring in full is the manhole cover buying guide.
Wrekin’s note allows for the frame and about 20 to 40 mm of mortar, and it asks you to tamp the cover so the finished lid sits about 2 to 3 mm below the surrounding surface. The Clark-Drain sheet asks for the frame about 3 to 6 mm below the paving. Those millimetres are from two manufacturers’ sheets, not a rule on these Amazon bullets. If you only bought a plastic cap, stop: the SHMOX lids are riser spares, not frames to bed.
Bed and haunch the frame
The Clark-Drain sheet uses a 4:1 sand-and-cement mortar for that one cover, with the bed extending about 50 to 100 mm past the frame, and it tells you to keep mortar out of the chamber. That mix is not printed on the Natotela, tonchean, gapino, or Eborrkee files, so do not treat 4:1 as a law for every ASIN. Set a full bed so the frame cannot rock. Check it is not overhanging, and check the lid still drops in.
Haunch around the outside of the frame. Wrekin’s guide wants the haunch over the bedding lugs where the cover has them. Do not drop mortar down the hole. Several stainless reviews say the bedding lugs were missing. Do not weld lugs on to fix that. If the brickwork under the frame is loose, stop.
Pave around the frame, then fill the tray
Lay the surrounding slabs so they do not pinch the lid. Wrekin’s guide says not to force blocks under the frame lip, and not to leave unbound grit in the tray. Keep the lid in place while you pave so the frame cannot twist. The Clark-Drain sheet wants the tray fitted before the paving goes in.
Fill a recessed tray after the frame is stable, not before you have checked the lid lifts. Bed the infill and wipe the seat. Solid lids, such as the £19.99 FRP cover, have no infill. Do not stick a slab on a solid lid. Cutting clay pavers or concrete flags throws silica dust. The Clark-Drain note points at the Health and Safety Executive expectation that cutting is dust-suppressed.
Lift it, and when to stop
The weight on the listing is the empty cover. The Natotela stainless 600 mm tray is 16.2 kg empty. The fibreglass cover is 30 kg, and its bullet says one person can lift it. The Health and Safety Executive publishes no single kilogram limit. Fill the tray in place.
The 200 mm review says the Allen key releases the lifting lugs and does not lock the lid. If the keys are not in the box, contact the seller before you scar the seat. Stop and call a fitter when the cover is in the road, when the brickwork is loose, or when the frame will only sit after the corbel is rebuilt. Stop if a car must cross and the listing has no class. That limit is the manhole cover for a driveway page, not a thicker bed of mortar.
Common questions
What do I do with the old frame?
Take it out if it is cracked, rusted through, or the wrong size for the new cover. Bed the new frame on the sound masonry, fully supported, with no overhang. If the old frame is still true and you only bought a SHMOX lid, leave the frame alone and seat the cap in the riser. Two reviews of the round lid said it did not fit, so check the diameter before you chip anything out.
How thick is the mortar bed?
Wrekin’s paving guide for its own recessed covers allows about 20 to 40 mm of mortar under the frame, then a haunch. The Clark-Drain sheet for one 10-tonne cover specifies a 4:1 mix and a bed that extends about 50 to 100 mm past the frame. Those are their sheets, not a line on these Amazon listings. Aim for a full bed with no rock, and keep the mortar out of the chamber.
When do I put the slabs in the tray?
Put the tray in and prove the lid lifts before you lock the surrounding paving. Fill the recess after the frame is stable, bed the pieces, and grout them so grit does not fall into the seat. Wrekin’s guide says not to leave unbound material in the tray and not to force blocks under the lip. A solid lid has no infill step.
Why does a new lid rock?
The bed is proud on one side, the frame twisted while you paved, or grit is in the seat. Lift the frame while the mortar is fresh and reset it on a full bed, with the lid tried in before you haunch. A review on the 200 mm clear-opening tray also says the lid does not sit flush, which is a listing limit, not something a thicker haunch will machine flat.
The keys are missing. What now?
Do not drill the lid and do not weld lifting lugs on. Stainless reviews in the shared Natotela file already complain about missing keys and missing lugs. Ask the seller for the keys that the bullets said were included. Until they arrive, leave the cover liftable by the method the listing describes, and do not pave it in so tightly that you need those keys for the first lift.
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)