When calculating pay attention to the optimal number of rotational levels. In my experience the best stage 3 with a width of stairs in 80 cm More - steps will be too narrow and so uncomfortable.
Wakati kuhesabu makini na idadi ya mojawapo ya ngazi linganifu. Katika uzoefu wangu hatua bora 3 na upana wa cm katika ngazi 80 Zaidi - hatua kuwa nyembamba sana na hivyo kuwa na wasiwasi.