How do I check if a parts y position is higher than a specific value?

So I made a script that spawns trees randomly around a specific area, but every so often a tree will spawn on top of another. So when a tree spawns I want to check if it's position is higher than a specific value. I'm not sure how to do this but if somebody could help me it would be a big help. Thanks!

You could use GetPrimaryPartCFrame to get the CFrame of the tree. This can only be called after the PrimaryPart is set.

local Y_NUMBER = 5

if Tree:GetPrimaryPartCFrame().Y > Y_NUMBER then
	-- ok
end

Although this is the answer to your question, I would also want to make sure trees aren't spawning inside of each other or near each other. A simple fix to this would be to check the distance between the tree being spawned and every other tree to make sure they aren't too close.