The kind owner of this boat gave me license to build functional art. It began with a form that matched the deck's camber onto which the acrylic was heat-formed. The curved acrylic was set into a water-tight seal that also allows it to expand as sunlight hits it throughout the day. The 36 in. wide, heavy, wood frame slides easily with he help of ebony, a self-lubricating wood, and brass flatbar tracks. This design allows lots of diffuse sunlight into the boats interior and will support the weight of a man standing on it. The drop-boards louvers permit fresh air to circulate down below. In short, each of the two components are built to meter in just some of what nature is offering.