Sheet Sizes & Thickness

Sheet Sizes

Dimensions: Plain undecorated metal and metal laminates
Mat’l Dim. Inches 48″ x 96″ or 48″ x 120″
Mat’l Dim. (mm) 1219 x 2438 or 1219 x 3048

Dimensions: Custom GageMetal
Mat’l Dim. Inches Any size up to 48″ x 120″
Mat’l Dim. (mm) Any size up to (1222 x 3048)

Specifiers should consider the most economical use of these standard sizes before designing a project. If the intended metal facing has formed edges, the overall standard blank size should always fall within the above dimensions.

Material Thickness

Plain metal sheets of architectural quality vary in thickness between .025″ (.60 mm) and .124 ” (3 mm). Just as any other high traffic and high wear application, the specifier needs to consider minimum thickness to avoid denting.

Elevator surfaces such as doors and cab wall facings are usually specified in 18 gauge (0.050″ or 1.20 mm). If the plain metal sheet is glued to a solid substrate, such as steel, heavy plywood or particle board, then 20 gauge (0.040″ or 1.00 mm) Stainless Steel is sufficient. For an identical application in copper alloys (which are softer materials) we recommend to specify nothing less than 18 or 16 gauge (0.050″ or 0.060″) ( 1.20 mm or 1.50 mm). If the plain metal sheet is used for a hollow structure, such as a column cover, at least 14 Gauge Stainless Steel or 12 Gauge (0.124″ or 3.00 mm) Copper Alloys and Aluminum should be specified.

METAL LAMINATES are less prone to denting because of the inbuilt resilience of the phenolic resin substrates. However, hollow or self-supporting structures cannot be built from metal laminates. The exception to that rule is the metals sandwiched over a resin core, ex. Alucobond. Such laminates are ideal for any hollow core construction and are known as aluminum composites. If the specified metal is too thin, then the fabrication process like forming, bending, roll forming and especially any welding, will distort the metal sheet: it does not look flat, it is warped, it is “oil-canning.”

UNDER NO CIRCUMSTANCES CAN ANY DECORATED METAL SHEETS BE WELDED BECAUSE IT WILL DESTROY THE DECORATIVE FINISH IN THE WELDED AREA.

The specifier should avoid specifying highly decorated facings with metal which is too thin for the intended purpose. The resulting installation will look poor while the extra cost for decorated metal will be wasted.