Here are the three dimensions we require to design a custom Waterboot for your boat. If you are ordering for the first time please indicate all three dimensions in your order form.
See Photo Below: Mast Circumference: This is the circumference where the top of the Waterboot will wrap around the mast.
![](https://waterboot.com/wp-content/uploads/2020/02/9eec6557fb1d1f1a55f86a44c1395dff-1.jpg)
See Photo Below: Deck Flange or Collar Circumference: This is the circumference of the deck collar where the bottom of the Waterboot will wrap around.
![](https://waterboot.com/wp-content/uploads/2020/02/Deck-Flange-web.jpg)
See Photo Below: Overall Vertical Height: This is the height from the deck to the top edge of the Waterboot. Keep in mind any restrictions like low mounted hardware.
![](https://waterboot.com/wp-content/uploads/2020/02/88d78161afdf32e2e71e53a2607e7f4a.jpg)
Note: You may simply want to duplicate the height of your existing “boot”. If there are no height restrictions, pick a height that will be both effective and attractive.