I bought three sets of 8X4 ProSlat. Two of them I stacked, the other I cut in half and stacked. I love this system. It holds plenty of weight, and is extremely versatile. As I add tools to the wall, I can move existing tools up, down, or sideways as it needs to fit. It's a clean, professional look. I also love all the accessories that are available. At this time, I have two hook kits and one basket kit. I will be adding kits and pieces to suit my needs. Easy to assemble. 100% manufacturing size and quality. It's also packed well so no damage is done in shipping. I highly recommend this system. I'm nowhere near done filling up the Slatwall, but I wanted to included my pictures of what I've done so far.