Is the most common structural metal decking in the industry.It is an ideal structural substrate on short to medium span conditions that range from three feet to ten feet in distance.B Deck is lightweight, strong, economical, and easy to install. The panel in the image below is 1.5” deep and 36” wide. It also has 6 (6” wide) ribs with a male and female leg to create an interlocking sidelap.