We needed a way to add some ventilation to our shed as we wanted to close off the back of it. This product was exactly what we were looking for. We saw a similar product but the parts were plastic. They are metal and not flimsy. It wasn't easy getting the boards up the stairs that high, but we did it. We used 5/4 thick pressure treated decking. The holes are 36 inches high and 54 inches long. I highly recommend this product as the parts are well made and easy to install and the price is reasonable too.
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