I looked into building some but decided it was not worth the effort.
Hosta, Brownell, Keelco and others sell them for $50-$75 each and you
can find them used for half that.

1" Acme threaded rod cost about $10/foot and plane hex nust are $4 each.
Add the angle iron and you are close to the price of a used stand.

Denis Marier wrote:
I am looking a building some steel jacks to support sailboat for winter
storage.
I do not know if there is a universal standard or do they differs from boat
yard to boat yard.

TIA



--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com