what is the best size of floor space needed for a fully grown BP. I would need it in inches (28 x 44 x 12 ect..) or in cubic feet (1.5 cu ft.)

last question. When the rack is made out of wood can I place the heat source right on the wood if Im useing a dimer switch? like if Im useing a UTH or flexwat? (what is flex wat??)

Something my husband wanted to know.