Get to work with an A.R.E. commercial aluminum cap. Our rugged welded frame construction offers years of durable service, no matter what the weather or job. Choose between our DCU ® (.035 aluminum skin), DCU MAX ™ (.063 aluminum skin) or our Diamond Edition DCU ™ (.063 diamond plate aluminum skin) to outfit your truck. Each of our commercial aluminum models has weather-sealed doors with gas props, heavy-duty hinges, and locks to protect your valuables.