पञ्चहस्तमाणिद्वारम् ॥ कZ_०२.३.२७ ॥
pañcahastamāṇidvāram
門(dvāra)は五ハスタ(hastas)の寸法に測るべきである。
To standardize construction for security, traffic control, and predictable defensive planning (weapon placement, chokepoint control).