I don't have so I've not done it, but you could find a cheaper board (suggestion: restaurant supply) and cut it to size. That said, you wouldn't be saving much and the Wolf isn't outrageous assuming it's a decent quality board. Probably cheaper than Boos. Personally I'd find somewhere else in my kitchen to save $40 or so.

Here is a link that might be useful: My local supply

Thanks! Given that I just bought a plastic cutting board from Ikea for a few bucks, $95 seemed expensive for a cutting board but good to know it is in range. What's odd is I just checked the subzero site and it lists a cutting board for $49. But maybe it is a stand alone cutting board, not one that is fit for the griddle

I’m wanting a custom cutting board to replace the stainless steel cover over the griddle. I found a man on Etsy that custom makes these. They are gorgeous. I want walnut, he’s quite a lot more expensive, than Wolf, but the board is gorgeous and I want to it completely cover the grill area. Worth ever penny to me, my 48” gas, six burner with griddle wasn’t cheap, but their cutting board looks cheap to me. If you search on Etsy, put in The Woods Woodshop Company, his name is Cameron and he’s very nice!!