This is how I made a four-chambered bat house for my sister.

Free Plans:
http://www.Makify.com/stuff/Bat_House_Plans.pdf

More Information on Bat Houses:
Bat House Builder’s Handbook – http://batweek.org/pdfs/make_bathouse/BHBuildersHdbk13_Online.pdf
Bat Conservation International – http://www.batcon.org/resources/getting-involved/bat-houses

Supplies & Tools:
Primer – https://www.lowes.com/pd/Valspar-Exterior-Latex-Primer-Actual-Net-Contents-32-fl-oz/3087681
Stain – http://www.homedepot.com/p/BEHR-Premium-1-qt-Deep-Base-Solid-Color-Waterproofing-Stain-and-Sealer-501304/300845942
Wood glue – http://amzn.to/2v5JlOX
Caulk – http://amzn.to/2vMymw8
Roof sealant – http://amzn.to/2vHfvUs
Rockwell circular saw – http://amzn.to/2vHfvUs
Angle gauge – http://amzn.to/2w6Hy0Q
Band saw – http://amzn.to/2vHJNa0
Pull saw – http://amzn.to/2v6m27S
Caulk gun – http://amzn.to/2vMZk6w
Drill/driver – http://amzn.to/2x8C5Ub
Countersink set – http://amzn.to/2vHozsK
Box knife – http://amzn.to/2vMOspt

Makify2 – http://www.youtube.com/c/Makify2
Patreon – http://patreon.com/Makify
Etsy Shop – http://Makify.etsy.com
Twitter – http://twitter.com/Makify1