Mason Bee House — Cedar (Large)

A large-format cedar nesting house built specifically for mason bees. 12x8 inch face with 8 inches of depth, providing longer nesting tubes that mason bees prefer for laying multiple cells per tunnel. The CNC-routed entry holes are precisely sized at 5/16" diameter — the standard for Osmia lignaria (blue orchard mason bees). Features a cedar overhang roof that sheds rain away from the nesting face. Mounts to a wall with included hardware or to a 4x4 post with the included post bracket. Cedar construction resists moisture and insect damage for years without finish.