The mounting height is the measurement from the underside of the awning cassette to the ground. If you have hydraulic levelling or you find yourself on the highest end of one size, go for the next size up.
1.90m – 2.24m Small
2.25m – 2.44m Medium
2.45m – 2.64m Large
2.25m – 2.49m 1200
(Only for use on Thule Omnistor 1200 Awning mounted on a caravan)