I have seen this rug online and think it is named the "circuit" rug....as in circuit board. Tried a number of searches for you and places my rug buying occurs, but failed. Maybe my description is a start.

The very best thing ? A very good nylon, one you select at a higher end broadloom carpet store, and have bound by hand to the exact inch you want. It will be indestructible. It will be highly cleanable. Example the nylon, hard to tell the difference, of the VERY difficult to maintain viscose fiber laden, ready to go rugs you will find. The shading and luster is absolutely wonderful. That's the forever rug you can't kill, and can vacuum as much as you like. https://www.carpetsindalton.com/products/commercial/broadloom-carpet/shanti-by-prestige

Several sites sell it, here’s a few. I’m not seeing it in the extra large sizes, though — https://www.rugs-direct.com/Details/Surya-Harput-HAP1069/134666 https://www.wayfair.com/rugs/pdx/mistana-hillsby-beigelight-gray-area-rug-mitn2359.html https://www.houzz.com/products/surya-harput-hap-1069-gray-charcoal-beige-area-rug-18-sample-prvw-vr~135199754 https://www.modernrugs.com/area-rugs/surya-surya-harput-hap-1069-light-gray-rug_-_1510_hap-1069.html

Search on Wayfair, Joss & Main, Overstock, Hayneedle, and Amazon.