A shutter assembly mounts adjacent an opening of a building. The shutter assembly includes a right stile and a left stile disposed in a spaced and parallel opposing relationship with one another and each having a U-shaped cross section presenting a base and side walls. The side walls extend from the base to spaced distal edges to define a channel open at each end of the respective stiles. A top rail and a bottom rail extend in a spaced and parallel opposing relationship between the bases of the stiles. The top rail is disposed in one of the open ends of each of the stiles and the bottom rail is disposed in the other open ends of each of the stiles. Each of the rails define a glue manifold for distributing an adhesive onto the rails and into the channels for securing the rails to the stiles.