These quoins are made from finish molding, slightly rounded on the edge.
To Make Quoins Start with a practise piece of molding before working on your final piece.
Begin by cutting your molding to the length you need to cover the edge of each door at the side and across the center front. A cornice will be glued to the top face of the doors, so the quoins will need to be shorter than the length of the doors, by the width of the cornice strip minus 1/8 to 1/4 inch. This measurement will allow the cornice to protrude slightly above the case. You should have three or four equal length quoin strips.
Mark your molding square across each strip in one inch increments from the top to the bottom of the strip. The bottom mark may not be directly on an inch division, the change in size looks fine if it is at the bottom of the doors.
Use your saw to cut on the markings, across the front face of the molding at each one inch mark, extending the cut over the molding edge, as shown in the photo above. Keep your saw square with the molding, making cuts 1/8 inch deep. Use a piece of tape to mark your blade 1/8 of an inch up from the bottom to measure the depth of each cut.
When you have sawn across the molding at every mark, begin to carve the quoins.
Mark every second space on your molding with an x as shown in the photo. The x areas are carved down to make the quoin stone effect. Use a carving knife or box cutter to trim 1/8 of an inch from each side in the square marked by the X. Carefully shave the top of the remaining wood section so that it is 1/8 of an inch (the depth of your saw cut) lower than the section above and below it.
Don't worry if your carved sections are not perfectly flat. They are supposed to be a bit irregular.
When you have finished carving down all the sections as shown in the photo above, sand the sawn edges and the face of the carved quoins.
