Abstract: In one aspect, the invention provides an insert that is incorporated into laminated countertops during fabrication of stock countertop material. Once installed, a guide portion of the insert serves as a template for the later removal of a selected cut-out portion of the insert, to leave an opening in the countertop defined at least in part by a remaining portion of the insert. In this way, the insert may for example serve as both a template for cutting a sink opening in a laminated countertop, and as a component of a sink undermounting system in the laminated countertop.

Abstract: In one aspect, the invention provides an insert that is incorporated into laminated countertops during fabrication of stock countertop material. Once installed, a guide portion of the insert serves as a template for the later removal of a selected cut-out portion of the insert, to leave an opening in the countertop defined at least in part by a remaining portion of the insert. In this way, the insert may for example serve as both a template for cutting a sink opening in a laminated countertop, and as a component of a sink undermounting system in the laminated countertop.

Abstract: An apertured mounting unit comprises a deck sheet with a top and a bottom surface, the deck sheet has a cross-sectional edge defining an aperture. A non-porous seal member abuts the edge, the seal member has top and bottom surfaces. A sink with an upper circumferential flange may be removably mounted on the bottom surface of the deck sheet, with the flange in sealing engagement with the seal member. The flange cooperates with the seal member and with the bottom surface of the deck sheet so that the flange is brought into sealable engagement with the seal member when the flange is biased against a stop that is fixed with respect to the bottom surface of the deck sheet.

Abstract: An apertured mounting unit comprises a deck sheet with a top and a bottom surface, the deck sheet has a cross-sectional edge defining an aperture. A non-porous seal ring abuts the edge, the seal ring has top and bottom surfaces. The bottom surface of the seal ring adjacent to the cross-sectional edge is generally coplanar with the adjacent bottom surface of the deck sheet. A sink with an upper circumferential flange may be mounted on the bottom surface of the deck sheet, with the flange in sealing engagement with the seal ring.

Abstract: An apertured mounting unit comprises a deck sheet with a top and a bottom surface, the sheet having a cross-sectional edge defining an aperture. A non-porous seal ring abuts the edge, the seal ring having top and bottom surfaces. The top and bottom surfaces of the seal ring adjacent to the edge being generally flush with adjacent top and bottom surfaces of the deck sheet.