Baseboard Height For 8 Ft Ceiling . For example, simple baseboards have no decorative elements and are a plain strip of rectangle material that. Retailers sell all sorts of shapes and sizes, but the most common include 3 ¼ inches and 5 ¼ inches. AFTER ceilings were raised and doors replaced with 8 foot ones. Crown from www.yelp.com There are specific guidelines that contractors and designers tend to follow when it comes to choosing the best baseboards for a given space, based on the height of the ceiling: Baseboards can be about 77% higher than a wall, so they provide a solid and definable base and do not have to be huge. Common heights sold by retailers: