Ladder jacks allow you to run planks or stages between a pair of extension or single ladders. Ladder jacks should be placed one foot from each end of the plank or stage. They should be used on type I or IA ladders.
The Southeast Seattle Tool Library
http://setools.org/
4425 MLK Jr. Way S #100http://setools.org/
In a garage behind the building at the SW corner of MLK and Genesee
Seattle, WA, 98108
USA
202 780 7296