Here are the instructions that the organization uses, I am a little confused. It looks like the the sides are tapored which makes sense. they want the sides to be lower than the roof, again makes sense. Now where I am confused is how would you mount the roof? The front must pivit for cleaning. the dimensions and instructions for the bluebird boxes are:
Roof: 10 ½" x 9 ¼" Sides: 5 ½" Wide, 9 ¼" Front, 10 ¼" Back Floor: 4" x 5 ½" Front: 5 ½" x 9 3/8" Back: 14" x 5 ½" Assembly: 1. Boxes made of cedar, cypress, redwood or exterior plywood need not be painted. If paint is used, choose a non-toxic exterior latex paint of a light color (to reflect heat); 2. Dimensions shown are for ¾ in. thick lumber; 3. The floor, sides, front and back can be cut from one piece of lumber measuring ¾" x 5 ½" x 4 feet; 4. Allow ½ to 3/8 inch of space between roof and sides for ventilation; 5. Recess floor ¼ inch; 6. Use galvanized siding or aluminum nails; 7. Pivot nails should be exactly opposite each other, 8 inches above the bottom of the front panel; 8. Insert the bottom board so that the grain runs from front to the rear of the box; 9. The opening is 1 ½" in diameter and its center is located 7 ¼" from the bottom; 10. The roof should overhang the sides so that rain water does not --- Please visit my home page; it is motivational, inspirational and humorous with many resources for the blind. http://www.lennymchugh.com Lenny Please Copy and Paste into New Message to pass along. Use BCC line when addressing. Help stop identity theft. enter the side vents.