Build a Microbat Roost Box

Photo: Doug-Beckers

Build a Microbat Roost Box

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Have you watched bats swooping insects? If you visit a park with streetlights at night and watch – you may be lucky! Insect eating microbats are alive and well in your area.

Construct your own roosting box to help out tiny bats. This design is suitable for most kinds of Australian microbats.

Adult help is required to make this project.

You will need

  • 3 cm thick plantation pine or structural or external pine plywood. Rough-sawn or even secondhand timber is ideal, although you must make sure it is free of nails and paint.
  • Screws
  • 1 or 2 hinges
  • A piece of old rubber tyre
  • Shade cloth, mesh or bark
  • Staple gun and staples
  • Wire
  • Old piece of garden hose or a nail and hammer


  1. Cut your pieces as the per sizes on the diagram below.
  2. Screw your pieces together except for the top/roof.
  3. Attach the top/roof piece to the box with a hinge so you can open and close it.
  4. Attach the piece of rubber so that it’s covering the hinged bits of wood – this will help waterproof it.
  5. Screw a couple of off-cuts on the inside of the roof so that it sits snugly.
  6. Staple shadecloth, mesh or bark to all inner surfaces, and your backboard.
  7. Choose your location – you want somewhere shaded during the hottest part of the day, but not in full shade all day. Trim a few branches in front of the box to allow an uninterrupted flight path.
  8. Thread wire through the garden hose and attach to back of box to hang from a tree, or nail your box to a tree about 3-5 m high.
  9. Better still, make 3 boxes and hang at the same height on 3 different sides of the tree. The bats will move between them to find the right temperature at different times of day and during different seasons.

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