how wide is average dining room chair
(Listed dimensions are based on average-sized adults). Dining Chair: The seat height averages 16â³ to 17â³, seat width averages about 15-1/2â³ in back and 18â³ in front, and average seat depth is 16â³ to 16-1/2â³. If armrests are used, they should be 7â³ to 9â³ above the seat but able to fit under the table apron.any chairs have seats that are about 15â³ wide in the rear and 18â³ wide in the front. 4. For relaxed seating, the seat should slant slightly toward the back (about 5Â° to 8Â°) to keep the occupant from slipping out of the chair.