My son Garrett made 4 Little Free Libraries for his Eagle Scout Service Project. He had lots of help building, assembling, and installing them. His first LFL went into a rural town in MT. We had a ribbon cutting ceremony with a speech, chocolate treats, & bookmarks to color.
The LFL was cut using these plans modified to 17x17x20 to 27 (cut at a 90* angle).
LFL instructions
We cut almost 2 LFL's out of one sheet of plywood. We cut the roofs out of a scrap piece of plywood. We are thrilled with how the LFL turned out.