56 FLUE-CURED TOBACCO IN FLORIDA -' Fig. 32: A frame barn showing good ventilation. Note the top and bottom ventilators and the manner in which ventilation can be controlled leaves grouped into a small bunch. The hands of tobacco are looped on alternate sides of the stick. Thirty to forty hands of tobacco are generally strung on a stick after which the string is tied to the stick and the tobacco is then ready to be placed in the barn. In harvesting tobacco with a harvester the cropper places the tobacco leaves into the fingers on the conveyor chain and the stringer removes the tobacco from the conveyor, thus eliminating the hander. The tobacco is strung in the same manner. Tobacco harvesters are now being used more, both on the farm and in custom operations. After the tobacco has been primed and strung, it is then ready for the curing barn. Most tobacco barns are square 16' x 16' x 16' or 20' x 20' x 20'. However there are rectangular units such as 16' x 20'. The inside of the barn will have from 4 to 5 rooms or pens and each room will have from 6 to 9 tier poles and they are generally spaced from 22 to 24 inches. Adequate spacing is essential for good ventilation. (See figure 32).