If you’re serious about woodworking, you’ll want a jointer and planer in your shop eventually. But if you don’t have these tools yet, know that many home centers carry hardwood thicknesses other than nominal 1-by (3/4 in. actual). You can regularly find thicknesses ranging from 1/4 in. to 1-1/2 in.
If you need wide stock, you’ll also find large
1-in. or 1-1/4-in. edgeglued panels in one or two species. This is a better option than buying really wide boards, which are prone to cupping. Solid wood stair treads are another handy option.