Have read all posts to line wt Vs lure wt, and how to tell
the weight of a fly line no problem.
Ihave a" spinning rod blank", with the secs listed below,
5ft. 1 pcs, line wt 2-4, butt 0.250, tip 4.5 action slow, power ultr/lt
what lure wt is this blank rated for, where can I find out!
Its a spinning rod "not" a fly rod.

Also have a salmon/steelhead rod blank "spinning"
10-6, 2pcs, line wt 10-17, butt 0.570, tip 5.5, action med.
power med/hvy.
this is a" spinning rod blank" which will be made into a two handed over head fly rod, what wt fly line will it take!

Vaughn,

On the 5 footer, if you looked at some of the other mfg's catalogs, you will see the ultralights 2-4 lb rods will handle 1/16 to 1/4 oz lures. Some say 1/32 oz on the low range, but I think that is the exception more than the rule.

I'm not a fly fisherman, so I can't help you with the Steelhead rod. Sorry.