Lap siding is James Hardie's best-selling product and North America's most popular brand of siding.

Lap siding can be defined as siding installed horizontally. It is composed of long flat boards overlapping each other (hence the name lap siding). There are several types of lap siding. The most popular types among homeowners are beaded and traditional clapboard siding.

Most new and remodeled homes have this type of siding on the exterior because of its clean and aesthetically pleasing appearance.

Lap siding creates a timeless design with a full spectrum of colors and textures.