Coretec Floors Originals Premium Briar Oak is a wpc - click plank vinyl flooring with a 7.5mm thickness and a 20mil wear layer for lasting durability. Plank dimensions are 7" wide by 60" long. It includes built-in underlayment for added comfort and sound control. Each box covers about 23.43 square feet. This product is Greenguard Gold certified, ensuring safety and quality for your space. Category: Vinyl. Brand: COREtec Floors. SKU: VV735-06013.