The wall panels arrived packaged very well and with no damage to them whatsoever. As it turned-out, the 19.75” squares were perfect and plentiful for my needs. I must admit, they did sit around in my home for some time, as I was indecisive on committing to a layout. Eventually, I tested a scheme — one panel at either side of my TV and also a wider area on my office computer desk wall. I used clear push-pins to temporarily support, align, and level the panels at their bottom and top edges (not pushing through them). It was that simple! I had already installed colorful LED light strips in said locations, but now with the wall panels up, I cannot say enough how much their addition has enhanced the overall effect! ... Great product!.