It depends on which brand you buy, which model of dental integrator, the parameters of each model, the size is different.
Generally, the width of the dental unit probably in 90-100 cm tall, 172 cm (if could reach 190 cm), in 170-180 cm long, if you want to more in-depth understanding of its detailed parameters, can be upper teeth e online search, top brands of therapy apparatus are described in detail.