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Rodent mesh for the gap mice already use

Updated: October 2026

You have found droppings by the air brick, a chewed corner under the deck, or a gap where the shed meets the slabs, and the roll in the basket has holes you could put a thumb through. Rodent mesh, in this amazon.co.uk set, means a small opening fixed over the route, with an overlap the animal cannot nose aside. A 6 cm garden grid will not do that job, however long the roll. Prices are on the [wire mesh comparison](/hub/fencing-and-wire/wire-mesh). The Products Compared editorial team read these listings on 16 October 2026, with no lab test. A qualifying purchase can earn a commission at no extra cost to you.

You have found droppings by the air brick, a chewed corner under the deck, or a gap where the shed meets the slabs, and the roll in the basket has holes you could put a thumb through.

Our top picks

C&Xanadu C&Xanadu 200 mm x 3 m rat mesh

Best overall

C&Xanadu C&Xanadu 200 mm x 3 m rat mesh
8.7/10about £11.58
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Not stated 304 stainless mesh sheets, pack of 6

Preis-Tipp

Not stated 304 stainless mesh sheets, pack of 6
7.9/10about £6.99
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JAHOMFAI JAHOMFAI 400 mm x 6 m rodent mesh

Alternative

JAHOMFAI JAHOMFAI 400 mm x 6 m rodent mesh
8.1/10about £19.99
View offer
On this page
  1. 1.The hole has to be smaller than the animal
  2. 2.Air bricks and other vents
  3. 3.Decks, sheds and the edge on the ground
  4. 4.What mesh will not do

The hole has to be smaller than the animal

The pieces sold for this job are welded rolls at 6 mm or 7 mm, woven 304 cloth at about 1 mm, and six sheets described as 20-mesh. Hexagonal netting, 13 mm PVC mesh and a 6 cm grid are other products. A gap at the edge defeats the hole in the middle. Short measure shows up on the C&Xanadu roll, and the gauge is blank. JAHOMFAI states 0.8 mm wire, and one reviewer said a rat got through. One reviewer said a glued drain cover on the 7 mm roll did not stop rodents, and never rust is seller wording.

Air bricks and other vents

An air brick has to keep breathing. Cover it with mesh and leave the holes open. Reviewers on the longer UNU cloth fixed it over air bricks and said air still passed. Do not paint the weave shut or mortar the rim into a plate. One reviewer found the 20-mesh sheets too fine outside an air brick. Pin the overlap firmly down. Do not cover a flue until a competent person agrees. A 200 mm strip can cross one brick if you overlap the face and fix the edge. If the hole is larger than one sheet, that listing includes no join, so cut a roll.
C&Xanadu C&Xanadu 200 mm x 3 m rat mesh

Testsieger

C&Xanadu C&Xanadu 200 mm x 3 m rat mesh
8.7/10about £11.58
View offer

Decks, sheds and the edge on the ground

Under a deck or along a shed, the route is the gap between timber and ground. The mesh has to meet a frame or a pin so the edge cannot lift. A skirt past that edge is a rule of thumb, and this research states no burial depth. Mesh laid on the soil is the version mice walk under. The 20 cm and 200 mm strips suit that line. The 400 mm roll adds height on the shed wall and still needs a fixing at the ground. Welded 6 mm mesh holds a squarer hole than 0.5 mm chicken wire, so the hexagonal rolls stay off this job. Where the boundary need not exclude animals, Hedgehog Street asks for a 13 cm by 13 cm hole. Fine mesh along the whole fence closes it. The mouse mesh stays on the building.

What mesh will not do

Mesh leaves rats that are already indoors where they are. Close the routes you can see, and call a professional for the infestation. The barrier is what you fit afterwards. A listing that says the goods stop rats is a public statement under the Consumer Rights Act 2015, section 9, not a test. A 6 mm patch on one gap leaves the next gap open, and a 6 cm roll with a mouse title is the purchase to avoid.

Common questions

What hole size is sold for mice and rats in this set?
The welded rolls sold for that job are 6 mm, from £11.58 for 200 mm by 3 m up to £31.99 for 80 cm by 5 m, and 7 mm on a 6 m by 20 cm roll at £13.49. Cloth at about 1 mm, and 20-mesh sheets with no millimetre figure, are the fine covers. A 15 mm, 25 mm or 60 mm hole is a different product.
Will chicken wire stop a rat?
The hexagonal rolls here are 0.5 mm wire at 15 mm by 25 mm or 25 mm by 50 mm. That opening is much wider than 6 mm welded mesh. Use chicken wire to shape a light cover. For a rat gap, move to a welded small hole, and still treat the review of a rat getting through 0.8 mm wire as a limit on that claim.
Can I cover an air brick?
Yes, if the holes stay open so the brick can breathe. Reviewers fixed stainless cloth over air bricks and said air passed. Many say a 15 cm by 21 cm sheet fits one house air brick. Do not seal the rim solid, and do not cover a flue until a competent person agrees. One reviewer already found the 20-mesh pack too fine for an outside air brick.
How wide a piece do I need?
Wide enough to overlap sound material around the hole you measured. A 15 cm by 21 cm sheet is the air-brick size reviewers describe. A 200 mm strip is a line under a deck or along a shed. A 400 mm roll is for more height on a wall. A 1 m by 30 m roll is a garden fence with 6 cm holes, the wrong opening for mice.
Will mesh stop rats that are already indoors?
Mesh closes a route. It does not remove animals already living in the house. Call a professional for that infestation, and fit the barrier over the holes they used once the inside is dealt with. A tidy patch on one air brick leaves the next gap open if you have not walked the outside of the building.
Should the whole garden fence be fine mesh?
Only if that boundary must exclude animals, and you accept the cost to hedgehogs. Hedgehog Street asks for a 13 cm by 13 cm hole on an ordinary garden link. Fine mesh along the whole run closes it. Keep the small aperture on the house, the deck and the shed.

Related pages

Wire mesh buying guide

How to fit wire mesh

Best wire mesh

Wire mesh

Chicken wire vs welded mesh: when the hole must stay

Sources

Sources from the research digest. amazon.co.uk listings in this comparison were checked for the 16 October 2026 score. We did not run a laboratory test.

  1. Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2, Part 2, Class A (retrieved 15 October 2026)
  2. Planning Portal: Fences, gates and garden walls (retrieved 15 October 2026)
  3. GOV.WALES: Planning permission for fences, gates and garden walls (retrieved 15 October 2026)
  4. Scottish Government: Householder permitted development rights, Class 3E (retrieved 15 October 2026)
  5. GOV.UK: When is permission required? (retrieved 15 October 2026)
  6. Consumer Rights Act 2015, section 9 (retrieved 15 October 2026)
  7. Wildlife and Countryside Act 1981, section 1 (retrieved 15 October 2026)
  8. Hedgehog Street: Link your garden (retrieved 15 October 2026)