Patent ID: 7685691

Claim:
A method of casting a concrete-mix countertop comprising the steps of: providing a web surface bounded in part by free edging, with edging forms that are formed with relief profiles; selecting selected runs of the free edging, the remainder of the free edging if any being unselected runs of the free edging; temporarily attaching the edging forms around the selected runs of free edging or also temporarily attaching other flow checks around the unselected runs of the free edging for the purpose of checking the flow of a casting compound to the height of a given rise over a plane of the web surface; wherein the relief profiles in the edging forms define depending-flange relief cavities that descend below the plane of the web surface; providing a concrete-mix casting compound; pouring the casting compound over the web surface to the level of the given rise, including filling in the cavities in the edging forms which descend below the plane of the web surface; removing the edging forms when the casting compound has hardened whereby the selected runs of free edging are draped over in part by a depending flange of the hardened casting compound that gives the hardened casting compound an appearance of a virtual thickness that disguises in part the actual thinness of the rise over the web surface; wherein the edging forms are produced of foam stock material.