Over the past 19 years I've done approximately 18,000-20,000 sq. ft. of pavers. Not a lot in that time, but enough that I know what I'm doing. I'm currently bidding a commercial project and the pattern spec'd by the architect has 2 pavers of the same color (different sizes) and a 3rd paver of a different color. The 3rd paver color is darker than the other and will form a type of "grid" through the other 2 pavers. The grid will go from the middle of the paver area, outward at a 45 degree angle to the other pavers and terminating at the outside perimeter. Since doing a "grid" at a 45 degree angle to the pattern is new to me my questions are: 1 - Do I lay the grid pavers first and then cut to them with the main pavers? 2 - I'm wondering how to go about doing this grid efficiently and effectively while keeping my sand in tact. I like to only screed enough sand to work with each day. 3 - It looks like I'll have to account for a lot more cutting with this "grid" in place. By the way, the total square footage for the area is 1850 sq. ft. and will be surrounded entirely by concrete, either building foundations or sidewalks so no edge restraint. Any thoughts and feedback is much appreciated.