For these boxes I used a “Project Panel” intended for use as bench tops that you would buy from popular hardware stores. This one is Alpine Oak / Victorian Ash. There’s different types of timber like Pine, Karri, Beach and others. This
nativebeehives.com is a project website with a focus on individual design and construction of Native Bee Hives, lots of photos, information about Australian native bees and also a news story thrown in around the place!