Designers often create 135-degree corners for islands or peninsulas, but many ignore the geometry and try to create this angle by aligning the cabinets at their front points. This example shows how to correctly create the corner so that the countertop, toe kick, and moldings also align. We used Planit Fusion, but the same principles apply in 20-20 and AutoCAD, as well as in hand-drafting.

Step 1: Begin by drafting a corner wall section that has the following dimensions (all in inches): Wall 1: 36 L by 34½ H; Wall 2: 48 L by 34½ H; Wall 3: 36 L by 34½ H.

Step 2: Place a 24-inch sink base centered on the diagonal wall — Wall 2. (To center the cabinet on the wall, highlight the 48-inch wall and the cabinet and press the center icon located on the bottom left corner of the Add palette.)

Step 3: With the cursor highlighted, use the Relative Mover to predict how much design space is available to the left and right of the cabinet. For 135-degree corners, the following formula applies: Offset = Depth ÷ 2.414. For a proper fit, the 24-inch deep cabinet is offset 9 15/16 from the corner.

Step 4: Enter the offset figure of 9 15/16 in the Mover box and press OK to accept. Click on the Move Left (or right) arrow a second time to confirm the size of the filler. By moving the cursor the correct offset, the program tells you the size of the filler needed alongside the cabinet.

Step 5: Attach the cursor to the cabinet by right-clicking the cabinet and choosing Attach Cursor To; attach a base filler by choosing its nomenclature and trimming it to 21/16 inches. Attach one to each side of the sink base.

Step 6: Right click Wall 1 and select Attach Cursor to Wall. Using the Mover palette, relocate the cursor (making sure that the previous filler is not still highlighted) down in plan 9 15/16 inches. For aesthetics, place a 21/16-inch filler on this side of the plan and then a B24.

Step 7: Repeat step 6 for Wall 3, placing a filler and a BD24. With the proper offsets, Auto Feature countertop and toe kick are easily placed, allowing for the top to be stretched over the back wall (here to 16½ inches).

— Nick Ritota, CKD, is senior design and software trainer for Merillat Industries. He is a featured speaker throughout the country on product, design, and CAD software; [email protected].