Use these measuremen

Use these measurements to ensure a comfy seat. Depth: 
16 to 20 inches to sit facing forward with feet on the floor Backrest: 
10 to 20 inches high to lean, either below the window or against a side wall Length: 
Minimum of 30 inches to face forward, 50 inches to sit sideways with legs extended

via Alastair Montgomery https://ift.tt/2jSvjNv