Best Bat Boxes For UK Gardens, Sizes And Materials

Product type and stated dimensions guide this shortlist. Stock and buyer reviews change often, so check both on the product page before you order.

What Size Bat Box Will Fit My Space?

Pick a box that fits your measured mounting area, going by its external dimensions rather than labels such as medium or large. Compare the 28 x 17 x 13 cm option with Gardigo’s approximate 29 x 14 x 8 cm dimensions. The vidaXL set of two lists 22 x 12 x 34 cm, while Esschert gives 39 x 18 x 17 cm. Mark the proposed outline on paper and compare it with your mounting area. Confirm which measurement is height, width and depth before comparing shapes. For products without stated measurements, request those three dimensions rather than judging their size from the name.

How Do These Bat Boxes Compare?

The table pairs each bat box with the spot or group it suits and one detail from its listing, such as size, chambers or finish. Measure the wall or tree space first and check you can fix the box 3 to 5 m up.

How Should I Compare Chamber Counts?

Extra chambers give bats a choice of temperatures, but they are no guarantee that more bats will move in. The BIGBATBOX cedar model and black WildYard option each state one chamber. Both castle style VIREESR designs list three chambers, while KIBAGA and Outer Trails offer two chamber alternatives in the sidebar. The capacity figures in the names, 100 for one VIREESR model and up to 30 for WildYard, are claims rather than guarantees. Compare external measurements separately from chamber count, since a name alone does not establish usable interior space. Where dimensions are missing, ask for height, width and depth in cm.

Which Wood And Finish Details Matter?

Wood type and finish matter more than looks, because bats need to grip the inside surfaces and are sensitive to chemicals. Greenkey lists natural wood, and the BIGBATBOX model specifies cedar with no interior paint. Outer Trails names black cedar, while the IDEA HOME option is described as solid wood, untreated and weatherproof. Those descriptions do not establish a lifespan or maintenance schedule. For a practical comparison, write down the material, colour and interior finish for each shortlisted box, marking anything omitted as unknown. Bats climb in from below, so the inside and the landing area should be rough or grooved, and wood preservatives are toxic to them. A dark outside helps a box warm up in cooler parts of the UK.

How Long Before Bats Use a New Bat Box?

Bats can find a new box within a few months, but it often takes a year or more, and some boxes are never used. Patience matters more than any feature on the box. Bats are most likely to move in where the garden already offers insects to feed on, so hedges, trees, a pond and plants that attract night flying moths all help, as does keeping outside lights well away from the entrance.

The Bat Conservation Trust suggests putting up several boxes facing different directions, so bats can move between warmer and cooler spots through the year. Look for signs of use rather than opening the box: small dark droppings on the ground or wall below the entrance are a good clue, and bat droppings crumble to a dry dust when rolled, unlike mouse droppings. Once bats are using a bat box it becomes a protected roost, and in the UK it is an offence to disturb them or open the box without a licence, so check from a distance and leave it alone.

You may also find our guide to fish breeding boxes and the chicken nest boxes guide useful.

Frequently Asked Questions

Last reviewed: 21 October 2026.