ST-1 String Buzz

[McCreed]

Just seconding what Sonic said about the saddle height adjustment, however if you've already adjusted them as far up as they'll go and still have this problem, there are other issues that will need addressing. A photo of the bridge would be handy...

Also:

First thing is to wind the adjustment up on the bridge saddles till you can play it. It's a good idea to get one of these:

They are not expensive and are very useful.

I will just caution you to not buy one of the $5 string gauge rulers you find on eBay (from "stores" that sell everything from cosmetics to camping gear). I made that mistake and the old saying "you get what you pay for" rings true. The markings were all way off when I measured them with my digital calipers.

I have bought two since from reputable guitar tool shops at around $20 each and they are spot on with their measurements.
One is a Planet Waves/D'addario and the other is unbranded but from a proper luthier supplies store.

[Mmack089]

Thanks for your replies, I’ve taken photos of the bridge. Most of the saddle screws are screwed in about halfway down the hole, it doesn’t seem it will get much higher. Most of the strings seem to buzz at the 20th or 21st fret, the action is extremely low.

I do have one of those rulers around that I can check this with, it maybe that I need to set the truss rod correctly.

I will also recheck the neck attachment as Simon mentioned. On another inspection by eye, it seems like the edge of the neck near the join seems a little higher off the body if that makes sense.