I have a 30 tank that is 18 inches high. I know that they are not climbers, but if I were to make a platform with a ramp leading up to it, would they make use of it? If anyone has pictures of their set ups I'd love to see them just to get ideas. Thanks

Sure they would. They still like to get a good look around.
Besides, in nature that would barely be a small mound.

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Mike
"Never worry about numbers. Help one person at a time, and always start with the person nearest you." - Mother Teresa

They would love to have more space to wonder around! Geckos love to explore (mostly during night). Just make sure its not high enough for them to climb out...I doubt it will be, but just make sure