Custom® Building Products has added a pre-printed, dotted grid pattern to WonderBoard® Cement Backerboard, the industry's most popular backer-board, in order to make installing WonderBoard even easier for tile professionals. The dots are placed at 6- to 8-inch intervals, according to Custom's installation specifications, and serve as a guide for fastener placement.

WonderBoard is a cement backerboard with a glass mesh laminate. It is used worldwide as an underlayment for tile and stone installations. WonderBoard's legendary reputation stems from its unsurpassed performance and reliability - even under the most demanding circumstances. WonderBoard is available in 1⁄4-inch and 1⁄2-inch thicknesses and is ideal for floors, walls and countertops in both interior and exterior installations. WonderBoard can be used for both residential and commercial projects, and stands up to all environmental conditions and continuous exposure to water or moisture.

Custom supports its entire line of installation products, including Wonder-Board, with the best warranty programs in the industry. Custom offers a Lifetime Backerboard Systems Warranty that guarantees installations will be free from defects for up to a lifetime when Custom products are used as a complete installation system.