Request a Quote or Order Stair Treads and Parts. Staircases can begin with open end treads, starting steps, or combinations of both. To determine whether a stair tread is left or right facing, stand at the bottom of the stairs and look up the staircase. Please fill out the form below with as much information as possible. Install Brazilian Cherry Stair Treads' title='Install Brazilian Cherry Stair Treads' />StairTreads. Stair parts are available unfinished and prefinished with a durable UV coating. DESIGN LIBRARY Crown Heritage makes it easy to get the stair part CAD drawings, PDF files and information you need. The Design Library is a valuable tool and service. A Nu. Stair Stair Cover representative will contact you within 2 business days. Toilet Partition Panels Click here for complete installations Panel sizes range from 10 to 78 wide. Panels are used between stalls, at the stall end, or.