Cat runs and tunnels

A run is floor area under mesh. A tunnel is a route between two places the cat is allowed to be, usually a window or a cat door at one end and an enclosure at the other. They are priced on completely different bases, so this page costs runs per square metre and tunnels per metre of length, and both figures are ours: no seller in this market publishes either one.

Prices and specifications checked 12 September 2026

A run is a height, not a name

9 of the units we sourced are sold with the word run in the product name, and they are not one thing. They range from $249 to $1,999, and from 820mm to 2050mm high. The name tells you nothing. The published height tells you whether you will be crawling in to change a litter tray.

7 framed units in the full comparison are under 1.3m high. They are the cheapest floor area in the category, and the reason is not generosity: a structure you cannot stand in needs less material, less bracing and no walk-in door.

Coops and Cages Resort Cat Run at $249 is the cheapest framed floor area anywhere in our comparison, at $111 per square metre, and it is 820mm high. If the run sits against a back fence and the cat uses it while you are at work, that trade is often the right one. If it is the only place the cat will ever be, it is not: you have to get in there, and so does a vet nurse.

Long runs are the cheapest square metres

9 units run to 3m or longer in one direction, up to 5.4m for Catnets Triple Size 5.4m Portable Cat Enclosure. Length is where the per-square-metre figure collapses, because a run is mostly panels and a long one reuses the same ends. $86 per square metre is the best rate in the whole comparison and it belongs to one of these.

What an extension actually costs

One seller publishes the house, the run and the two bolted together as three separate products, which is the only place in this market where the arithmetic of extending is visible. Coops and Cages Greta Cat House is $874 and Coops and Cages Greta Cat Run is $299, so $1,173 as two purchases. The bundle is $1,160. The saving is $13, which is not a reason to choose either.

The useful number is what the extra run buys: 1.45 square metres, or 53% more floor, at $197 per square metre against $225 per square metre for the same run bought on its own. Extending is cheaper per square metre than starting again, every time we could check it.

The capacity claims do not follow. The house alone is published as up to 5 cats; with 53% more floor the bundle becomes up to 6 cats. That is one extra cat for half as much space again, and it is a good illustration of why we treat capacity claims as claims. Only 9 of 68 records carry one at all, and across the market they disagree by about four times at the same floor area.

Tunnels, costed per metre

A tunnel is the piece that makes an enclosure part of the house rather than a box in the yard. 6 connector products are in our data, and only 3 publish both a price and a length, which is the minimum needed to compare them. The spread is 3.6 times.

Read those three rows carefully, because they are not the same product. Betta Pet Systems Wire Access Tunnel is made to length and priced by the metre, so the per metre figure is the seller's own rate rather than ours, and the same seller publishes a powder-coated rate above the galvanised one. It also carries the single largest caveat on this page: that seller's own page dates its prices to October 2021 and has not changed them since, so treat that row as indicative. The others are fixed sections you buy by the piece and join, which means the real cost of a 4m route is four or five pieces plus whatever joins them.

3 further connector products are priced but carry no usable dimensions, so they are not in the table: Omlet Catio Tunnel System - Window Box, Omlet Catio Tunnel System - Tower, Omlet Outdoor Cat Run - Catio - Porch. In two of those cases the seller publishes a dimension diagram with five sets of letters and never says which set belongs to which component, so we recorded nothing rather than guessing which line was which. A window box also needs a separate board to mount it to the window, sold as its own line item, and the double-door porch that stops a cat bolting past you at the door is another line item again.

One brand publishes freight, and it is the only one with a program

Freight is the undisclosed cost in this category. Only 5 of 68 records publish a delivery price, and all 5 belong to Omlet, which publishes it per size inside its own product data: from $55.99 on the smallest run to $110.99 on the largest. Everyone else defers it to a postcode field or names the carrier without a price, on a flat-pack that can weigh more than 150kg.

What is not published about any of this

Wind. 0 of 68 products publish a wind rating. Not a standard, not a region, not a speed. A raised tunnel spanning a side passage is the most wind-exposed element anyone builds in this category and there is no published basis for rating any of them. The closest a seller comes is telling you to peg the unit down.

Aperture. 29 of 68 records publish a mesh aperture, and a tunnel is where it matters most because the cat is pressed against the mesh for the whole length of it. Two brands publish explicit kitten warnings tied to their own aperture; the rest publish no aperture at all.

Two shopfronts, one catalogue

Somerzby and Coops and Cages sell overlapping runs at matching prices. Multiple models appear on both sites at identical prices and are served from identical image paths. One seller lists as "Resort" what the other lists as "Mansion", at the same price. If you are pricing a run against a run and those are your two quotes, you have one quote. Our own product table records only each seller's exclusive models, so the duplication is not visible in the table itself. It is reported here because a buyer comparing the two believes they are comparing the market when they are comparing one supplier with itself.

For the full ranking of every framed unit by floor area and price, see the enclosure comparison. If the run needs to move with you, portable enclosures covers what folds down, and if a tunnel has to reach a window rather than a door, window catios is the narrower answer. Whether the structure needs approval at all is in the building approval register.

Common questions

What is the difference between a cat run and a cat enclosure?

Mostly height and shape. A run is long, low and usually bolts onto something else: 7 of the 54 framed units we costed are under 1.3m high, which means you reach in rather than step in. An enclosure you enter is taller, costs more per square metre and is far easier to clean. Sellers use the two words interchangeably, so read the published height rather than the product name.

What does a cat tunnel cost in Australia?

The 3 tunnels we could price and measure work out between $55 and $197 per metre of tunnel, a 3.6-fold spread. One seller prices by the metre and makes the tunnel to length; the others sell fixed sections you join together. A tunnel that reaches a window usually also needs a window box and a board to mount it, each priced separately.

Can a tunnel connect the house to the enclosure?

That is what the systems are for. One brand publishes a modular set of straight sections, corners, a vertical tower for taking the route up or down a level, and a window box for houses with no cat flap. Another sells a wire access tunnel made to length that runs from a cat door to the enclosure. A third sells a ground or aerial tunnel that clips to its own freestanding units. None of them publish a wind rating, and an elevated tunnel is the most exposed part of any of these builds.

Is it cheaper to buy a bigger enclosure or add a run?

In the one case where a seller publishes the house, the run and the bundle separately, the bundle costs $1,160 against $1,173 bought as two items, so buying them together saves $13. The added run buys 1.45 square metres, 53% more floor, at $197 per square metre. That is cheaper than the standalone run's own rate, which is the general pattern: extending is cheaper per square metre than starting again.