wood tension spring(s)

Home Owner from new york
do i need to use two sash tension springs (20-001) one on each side of window? or will one be sufficient ?
4 Replies
Paul
Paul from SWISCO
SWISCO
Expert
Usually one 20-001 spring is enough but sometimes two is needed, and on a very rare occasion more than two springs are needed.
Friend from Lumberton,NJ
Will tension springs work on a wood window with a metal frame?
Paul
Paul from SWISCO
SWISCO
Expert
I am not positive without actually seeing your application but the 20-001 spring should work on a metal track.
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