In a 4 ft length, there's a 8" drop, and with a few screws, it can be pulled into proper cambers
I tacked some cardboard to the edge to show the amount of elevation change in 4 ft.
With a bit of preparation, you can get a lot of flex out of MDF, but it's best to build a test
section, because when you flex it too much, it will break with no warning
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