1.) At a point 18 inches above the boom, measure from 2 inches behind the mast to the point you wish the Shadetree to terminate at the aft end of the boat. In the event shrouds are aft of the mast, measure 2 inches behind the shrouds to your desired length. The backstay is as far back as you can go. The topping lift will pass through a Velcro-closed split in the awning designed for this purpose. Record this measurement in the diagram below.

2.) Once you have the front and aft edges of the awning determined from step 1, now measure the width. At the forward (mast) edge of the awning, measure from port lifeline to starboard lifeline. At the aft edge, again, measure lifeline to lifeline. Record your measurements in the diagram below.

Email this form to us at info@shadetreefabricshelters.com or call us at 1-888-807-4233. Using these dimensions, we will determine the proper canopy and wand frame size for your boat. In the event the dimensions do not conform to a standard Shadetree model, we will design a custom awning to fit.