They were purchased at Lowes off the shelf, no special order, $44 each. Here's the link. I purchased the shelves then the hardware separately (located next to the shelves) as I didn't want to use the large wooden supports that come in the combo kit. They sell the side brackets separately which is what I used to hang them. The top shelf was made from a leftover shelf after I cut them to fit inside the closet. I used a jig saw and pleased with how they turned out. There are a couple different colors, I used the Java which is the darkest.
Shop allen + roth 72-in x 16-in Java Wood Closet Shelf at Lowes.com