Outdoor kitchen cabinets in South Florida stay outside all year. In Miami, the average morning relative humidity is between 78 and 86 percent in every month of the year, and the annual averages are 82 percent in the morning and 61 percent in the afternoon. Miami International Airport averages 67.41 inches (1,712 mm) of rain a year, with measurable rain of 0.01 inch or more on about 141 days a year (1991–2020 normals). Near Biscayne Bay and the ocean, salt in the air adds to it.
For wood, two things matter. Wood decays seriously only when its moisture content rises above about 30 percent, which takes rain, condensation or contact with wet ground, while air-dry wood at about 20 percent or less has a reasonable margin of safety. Humid air alone does not wet wood enough for significant decay, but it does allow mold to grow. And in Miami-Dade and Broward, termites are part of daily life: Two subterranean termites introduced from Asia, the Formosan subterranean termite and the Asian subterranean termite, are both established in Miami-Dade and Broward counties, according to the University of Florida. Their workers feed on wood and digest its cellulose, and an infestation by a large colony can become severe in a relatively short time.
That is why the cabinets of a FREILUFT kitchen are made from 5/16 in (8 mm) marine-grade aluminum, with no wood in the carcass. Wood appears only where it can be looked after: solid oak shelves with five coats of yacht varnish. The FREILUFT manufactory makes every cabinet to order.