Step 1: Measure Deck Thickness Deck thickness is pretty straight forward. Figure out how thick your deck is, in inches. Deck Thickness as measured in inches Next

Step 2: Measure Riser Thickness If you have a flat riser (no wedging), put the thickness of that riser here, in inches. Typical sizes are 1/8th (0.125 inches), 1/4th (0.25 in) and 1/2 inch (0.5 inches). Riser Thickness as measured in inches Next Prev

Step 3: Measure Wedge Thickness If you are using a wedge riser, sometimes those risers have a rise and wedge. See photo for example. Measure this, in inches. Wedge Thickness as measured in inches Next Prev

Step 4: Wedge Degree Here is where the fun begins. Put in your degree wedge for the calculator to do some trig. Wedge Degree Next Prev

Step 5: Measure Baseplate Thickness Not all baseplates are created equal. In the rare case you are using a flush mount deck, input 0 for this measurement. Baseplate Thickness as measured in inches Next Prev