The PAC-CLAD Modular AL wall panel system from Petersen empowers architects and designers to create unique metal cladding surfaces, using panels of various sizes and depths in multiple colors. Designers can choose standard panel dimensions or can define dimensions and depths to create unique, flexible and eye-catching patterns. Vertical or horizontal panels of varying sizes and depths can be combined on the same layout in cassette-style patterns. Modular AL panels can be finished in any combination of the 46 standard PAC-CLAD colors, as well as custom colors. Panels can be perforated, including in patterns that spell words and form logos, shapes or images. Installation of Modular AL panels can be performed on a variety of substrates, including plywood, insulation, purlins or any combination.