Holsteiners are large-framed warmblood horses that typically stand between sixteen and seventeen hands and carry substantial body mass. A stall for a horse of this size should measure at least twelve feet by twelve feet, though a twelve-by-fourteen or fourteen-by-fourteen stall provides noticeably more comfort and reduces the risk of casting — a situation where the horse rolls and becomes trapped against a wall.
Ceiling height is equally important for a tall breed. Stall ceilings and barn aisles should offer a minimum clearance of ten feet to prevent head injuries when the horse raises its head suddenly or rears. Light fixtures, fans, and any suspended equipment must be mounted well above the horse's reach and securely fastened to prevent them from being pulled down.
Beyond the stall, turnout space is a critical component of housing. Holsteiners are athletic horses that need room to move freely, and daily turnout in a paddock or pasture significantly improves physical health and mental well-being. A single horse should have access to at least one acre of turnout, though more space is always beneficial. Fencing should be at least five feet high and constructed from materials that minimize injury risk, such as board fencing, mesh, or flexible polymer rail.
Aisle width in the barn should accommodate a horse of this size being led, groomed, and tacked without feeling cramped. A twelve-foot aisle is standard for most barns housing warmbloods, providing enough room for two horses to pass safely.