the fire department protocol:

when you stand on a ladder, stretch out your arms to grab a rung, your body should not be leaning back. This is about a 2: 5 or 2:4 ratio. So from the base of the ladder to the gutter is about 23*sqrt(5^2+2^2) /5 etc.. = 24 or 25 ft. 

I never use extension ladder to the maximum...

Get a 32 footer.

 

所有跟帖： 

• 32尺的1個人沒法handle -位酷哥- ♂ (0 bytes) () 09/22/2022 postreply 14:10:27

• basic requirement to be hired as handyman... -borisg- ♂ (0 bytes) () 09/22/2022 postreply 14:12:58