Prefabricated weight reduction stair convenient to install

The utility model belongs to the technical field of prefabricated stairs, and particularly relates to a prefabricated weight reduction stair convenient to install, the front end and the rear end of the stair are respectively provided with an installation groove, handrails are connected in the installation grooves through positioning devices, and the top end face and the bottom end face of the stair are respectively provided with two sets of grouting holes at intervals. And four groups of hanging rings are arranged on the stairs at intervals. 本实用新型属于预制楼梯的技术领域，具体为一种便于安装的预制减重楼梯，所述的楼梯前后端均开设有安装槽，所述的安装槽内经定位装置连接有扶手，所述的楼梯顶端面与底端面上均间隔设有两组灌浆孔，所述的楼梯上间隔设有四组吊环。