I am not familiar with the big chill, but here was my experience: We purchased this dishwasher to replace our GE which had a custom panel. The Best Buy salesperson didn’t think the same panel would be compatible, so I called the company that made our cabinets (they also made the panel) and they said it is compatible with any brand dishwasher as long as it was custom panel ready and is the same dimensions as the one we are replacing. Sure enough it fit just fine. The panel is just a wood board and the dishwasher comes with its own mounting instructions and hardware. You are essentially screwing into the panel from the backside so it really shouldn’t matter. I am not an expert on the matter that was just my experience. When in doubt call whoever made your panel and see what they say.