What are the best heavy duty barn door rollers available on the market?

The best heavy duty barn door rollers on the market are typically made of high-quality materials like steel or stainless steel, have a weight capacity of at least 200 pounds, and feature smooth and quiet operation. Some top-rated options include the National Hardware N112-102, the TCBunny 6.6ft Sliding Barn Door Hardware Kit, and the Industrial By Design Heavy Duty Sliding Barn Door Hardware Kit.