FrontLine Bldg. Products Inc. will feature its aluminum commercial window grilles, including its aluminum surround and simulated divided lite grille options. The surround grille has a robust construction using a double corner key design and a 1 3/8 inch depth that screws into new or existing window frames. SDL grilles are made and finished to order with myriad endwork options, shipped either assembled or unassembled. All grille options feature the company’s “dado” notching and are available in angled and radius shapes. Booth #418