Hi friends, I just thought I would share this with you if you were, by chance, looking for an affordable and easy bluebird house to build. I found some plans for this house online but adjusted them by using one 1/2" x 6" (5-1/2" real size) x 6' cedar dog ear picket board that is normally priced at $1.95/board. You will use roughly 52 inches of the 72" board and can save the remaining portion for 2/5 of another house. I drilled pilot holes for the pivot nails but did not need nail holds for the bottom because the fit was snug enough. That may change when the wood is exposed to the weather. Note: the clean-out side where the pivots will naturally recess if you start the build from the other side flush. It worked out well for me as it held the clean-out door in better. I used Titebond glue and narrow crown staples. You could use small screws or nails just the same. Remember to clean out the box at the end of the season. A little 1:10 bleach/water solution is helpful. Bluebirds won't build in a dirty box. Also, that is a 1-1/2" hole suitable for bluebirds. I drilled this one too low. It should be more under the protection of the overhang. Wrens will also like this box and unfortunately house finches. You may adjust the hole for the bird species you are hoping for. Finally, I don't use perches to avoid problems with predation. Place no less than 4 or 5 feet from ground (predation) and face toward bush, shrubbery, trees so adult birds can spot the hole and baby birds will be pointed toward the cover/safety when they exit for the first time. Avoid direction of prevailing winds also.