sure it is safer but..

the added weight makes it more difficult to lift up the ladder.

this is also useful when working on windows.

所有跟帖： 

• 谢谢, 那架子怎能固定在垂直外墙呐? 仅靠支架那2脚的摩擦力? -pickshell- ♀ (0 bytes) () 11/30/2023 postreply 07:08:14

• yes. that's why the lower ends of ladder need be -borisg- ♂ (27 bytes) () 11/30/2023 postreply 07:10:57

• 哦.学习了.谢谢. -pickshell- ♀ (0 bytes) () 11/30/2023 postreply 07:51:11