I would look elsewhere, this is the worst product I've bought in a long time. The rails aren't designed to fit in a left and right configuration like you would want for solar panels because for some weird reason the holes are NOT UNEQUAL! So it's almost impossible to get the same angle on both sides without connecting the pieces in some really weird (and specific) way. And the gap wasn't thought of, and I had to use a cutting wheel to cut off part of the end so it wouldn't rub against the other part. Terrible design. I should have just gone to the hardware store and bought the metal myself. What a waste of $70. Do yourself a favor and DO NOT buy this product! :)
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