It consists of one or more wooden planks and is supported by either a timber or a tubular steel or aluminum frame; Bamboo is used in parts of Asia. Scaffolding may be raised and lowered by means of cables controlled by a ratchet or electric motor.

• 它由一个或多个木板搭成,用木材或立体的钢架和铝制框架来支撑,在一些亚洲地区也使用竹子。鹰架可以用棘轮或电动机控制的电缆来提升或降落。