It was way too thick on both dimensions for me, so much so that I could not close the doors. I changed the design and bought some Trim-Lok D-Shaped Rubber Seal. Instead of lining the door with it, I put it into the channel on the door sill.
This option looks more professional and the gasket is less likely to be damaged over time. I do however have a leak to track down on one side, likely due to the door strap not being tight enough or the fact that I only temporarily installed the gasket just using its adhesive backing. I bet if I used marine sealant and tighten up the strap that should solve my issue.