How To Build Bat House And Why You Must Have One!

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Homemade two wooden bat houses on the poles in the pine forest

Bats are an essential part of our ecosystem, and building a bat house is an excellent way to support these flying mammals while enjoying their pest control benefits. Bats consume vast amounts of insects, including mosquitoes, beetles, and moths, and can even help control agricultural pests like corn earworms and stinkbugs.

However, bat populations are declining worldwide due to habitat loss and the spread of white-nose syndrome, a deadly fungal disease that affects hibernating bats.


Building a bat house can provide a safe habitat for bats and help maintain healthy populations. In this article, we will cover everything you need to know about how to build a bat house, including the materials and tools required, the location and placement of the bat house, and the benefits of having a bat house in your yard.

Materials and Tools Required

Before you start building your bat house, you will need to gather the necessary materials and tools. Here is a list of the items you will need:

  • 1/2 inch exterior-grade plywood or cedar boards (2 pieces measuring 24×16 inches and 1 piece measuring 24×22 inches)
  • Screws or nails
  • Waterproof glue
  • Wood saw
  • Drill with a 3/4 inch spade bit and 1/4 inch drill bit
  • Sandpaper
  • Exterior-grade paint or stain
  • 3-4 pieces of rough wood or plastic mesh (for interior roosting)

Location and Placement of the Bat House

Once you have gathered all the necessary materials and tools, you need to find the right location to place your bat house. Here are some tips to help you choose the perfect spot:

  • The bat house should be located at least 10 feet above the ground and in a sunny location. Bats prefer warm environments, so avoid placing the house in a shady or cold area.
  • The bat house should be mounted on a pole, tree, or the side of a building. Make sure the location is free from any obstructions or branches that might interfere with the bats’ flight.
  • It’s also essential to ensure the location is safe from predators such as cats, raccoons, and owls, which can climb or fly to the bat house.

Building the Bat House

Now that you have the materials and have chosen the location let’s move to building the bat house. Follow these steps to build your bat house:

Step 1: Cut the plywood or cedar boards according to the following measurements: two pieces measuring 24×16 inches for the sides, one piece measuring 24×22 inches for the back, and one piece measuring 23.5×16 inches for the front.

Step 2: Cut a 3/4 inch deep groove along the inside edge of each side piece to allow the front and back pieces to fit snugly.

Step 3: Drill a series of 1/4 inch holes in the front piece to allow for ventilation.

Step 4: Using screws or nails, attach the back piece to the two side pieces, making sure the grooves are facing inward.

Step 5: Apply waterproof glue to the grooves and slide the front piece into place, securing it with screws or nails.

Step 6: Sand the edges and corners of the bat house to prevent any rough or sharp edges that could harm the bats.

Step 7: Paint or stain the bat house with an exterior-grade paint or stain. This will protect the wood from weathering and rotting and make the bat house more attractive to bats.

Step 8: Mount the bat house according to the location guidelines mentioned above.

Benefits of Having a Bat House

Having a bat house in your yard offers several benefits:

Pest Control

Bats are voracious insect-eaters and can consume hundreds of insects per hour, including mosquitoes, moths, and beetles. This makes them excellent natural pest controllers, reducing the need for chemical pesticides.


Bats also play a vital role in pollination. They are the primary pollinators of many species of plants, including bananas, peaches, and mangoes. By providing a home for bats in your yard, you can support the pollination of your plants and help to maintain a healthy ecosystem.


Many species of bats are in decline due to habitat loss and disease. By building a bat house, you can provide a safe and secure home for bats, helping to maintain healthy populations and conserve these important animals.

Educational Opportunities

Having a bat house in your yard can also provide educational opportunities for children and adults alike. You can observe the bats as they come and go from their house and learn about their behaviour and role in the ecosystem.

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