I have bought some extra spinning rod blanks and was thinking about turning them into casting rods. I got me wondering how much if any difference there in the design and construction between the two. For example: is a medium power, fast casting rod blank the same as a medium power, fast spinning rod blank?

Sam

a blank is a blank and can be used as you see fit even if it is marked as spinning or casting the biggest difference is the length as some cast rods are a tad shorter then the counter part rod for spinning and it all comes down to as to where you set the spine of a blank. yes if you want to use them for casting rods do so

The best day to be alive is always tomorrow !!
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Wi.

Thanks for your help

Sam

The blank has no idea what you are using it for. I would build on the straightest axis and forego the spine. Otherwise, it doesn't matter. Sometimes manufacturers even list the same blank under different nomenclature in both casting and spinning classifications. Other times they have a set idea for perhaps a specific technique in mind and will market a blank specifically for one of the other, but even this does not mean you can't use a spinning blank for a casting rod or vice versa. The blank is doing the same thing, regardless.

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To add on to Sam's question......

Why do they sell soooo many different kinds of blanks targeted for specific fishing styles?

If you ever looked at a G Loomis catalog pre-Shimano you saw each rod had an alphabetical (a letter equalled a fish species) that they thought the rod could also be used for successfully. Than as you looked at the catalog you'd noticed some rod blanks were used in the bass rod series, hot shot steelhead/salmon series, greeenwater rod series, and walleye rod series. Same blanks were built spinning and casting versions and had different grip lengths depending on the major market they were after.
Lamiglas has used their GLB, graphite live bait blanks from 7 1/2 to 9 ft. lengths, in the Kenai and technique specific series salmon rods for decades along with their other uses I'm sure back east.
In my earlier and single years when I needed a handy, more compact rod for heavier work in Canada/Alaska for lakers etc. myself and friends would buy, or build telescoping flipping sticks and use a roller tip top. Now we could wire line troll, cast, jig, whatever came up for any of the larger species we encountered.
The reason you see so many different rods for say dropshot fishing is because the technique is used all over the country in cover in some areas using heavier line and baits, and out west in our clearer and more open waters where light lines and deeper water is the norm, and every combination of both in some of the central waters. For the western reservoirs I've been using a 7 1/2 ft. dropshot rod for many years due to the light line and deep water requirements I've seen. The same rod is an awesome river smallmouth rod for my area.