The blade on my saw is a 1/4", 6TPI, hook pattern bi-metal blade. It's my does everything blade. The brand is Lennox Dimaster
I think you could get away with a 6 tpi blade if you want a better finish. A 4 tpi blade in dry wood can be a bit rough.
If it's only straight cuts, you could also move up to a 1/2 blade.
I have a 1/2" 4-tpi blade on my 14" saw, I can go cut some poplar and take a picture if you want.
Dennis
Unfortunately, there really isn't an answer. I have an 18 year old, Rikon, 18" bandsaw that has never seen anything but a 1", 2/3 varipitch, TriMaster blade, or a 3TPI Starrett blade, also 1" wide, but I have a 14" Jet bandsaw that has seen many different blades. There are probably a 1/2 dozen blades hanging oonwine corks on the wall next to the Jet.
You will end up with an assortment of blades, in different tooth configurations. There really isn't a "general purpose" blade that I have ever found. It would be nice if there were. Get comfortable changing blades on your bandsaw.
"The first thing you need to know, will likely be the last thing you learn." (Unknown)
I have to agree with Mike ^^ ... there's no one answer, even for all straight cutting because material thickness comes into play. I tend to keep a .5" 3 tpi band on my bandsaw for my own general purpose, but for a 14" saw, a .375" or even .25" band might be more appropriate, with the wider one with less teeth better for thicker stock and the narrower band with more teeth better for thinner stock.
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The most expensive tool is the one you buy "cheaply" and often...
That's a good recommendation. With a little slower feed, you could even resaw with that blade.
Thanks for the advice, I went with a Carter blade, 3/8", 4 TPI.
Dennis