Not every project we undertake is a concrete countertop… Recently we created 15 cast concrete windowsills for a client’s residence in Westmoreland, New Hampshire. The client returned a little while ago and asked about creating a matching concrete hearth for a brick fireplace in the home: the same integral  terra-cotta color and the same molded profile on the lower edge. This was to be 3 inches thick with a gently arcing leading edge and a ”tongue” locking into the firebox area. We decided to block out part of the underside to reduce weight and make handling a little easier for all concerned. By doing so, we reduced the weight by about 25 %, down to 200 pounds of wetcast standard weight concrete. Every little bit (less) helps!