BE18KW4 Pizza Box, 18", Stock-Print, White/Kraft, E-Flute, Nia-P. Pizza Boxes are a must when serving pizza in any pizzeria or restaurant. The Pizza box is a corrugated box constructed out of cardboard. The exterior is a plain white and the interior is Kraft. Strong enough to hold a pizza with a lot of cheese and toppings. - Sold per case; 50 per case