Maryland Bleachers sells and installs commercial Press Boxes by Outdoor Aluminum, Inc. Custom Press Boxes can be fabricated for your specific needs. Units are pre-inspected, prewired and shipped to your site ready for use. Options include HVAC units for year round use, rooftop film platforms and a wide range of interior and exterior finish options. 8 and 10' wide boxes are the most common size. Lengths of 18-54' with custom sizes available.