Put this one together a few years back,with one of my partners, one of the flattest basement floors I ever saw. Had to take one corner off each tile to accommodate the inserts,when the subject of a floor feature came up, someone thought of using the scrap pieces in the feature. The size of the whole dictates the width of the strip in the feature. Saved the time-consuming/fiddly/fun part for Last. Sorry about the fuzzy photos,work'n on it.