Used 2 x 4's for sides and 2 x 6's for bottom perimeter and ridge at top. 1" welded wire (wasn't cheap), but I've been having bad predator problems. Dimensions are 8 feet tall on sides, 8 feet wide, 16 feet long. I built the nestboxes and perches later, and are not shown here. Not real fancy, but very pleased with it! Turnin 'em loose!