White Oak Riser for Stairs. Risers are 8" High by 3/4" Thick. These Risers are ‘Select or Better’ Clear (no knots) Kiln Dried, Sanded and ready for stain or top coating. These risers are priced by the running Inch. Lengths are available up to 96" Long. Price per running inch is $.54. Buy what you need. Don’t waste money and time by buying longer than what you need and then cutting.