Obviously one needs to consider the size of the table. For example I have a 16 inch throat on mine. I could reasonably cut something quite long, by using external support arms/legs/stands/benches, whatever, but would still be restricted to the approximate 16 inch wide wood. One of the reasons for spiral blades, as I understand, is to allow a piece of wood to be cut without spinning it around.
On reflection, mayhap a person could cut a long piece of work that is close to 32 inches wide, by rotating the work so first one side is "in" the saw, then rotating to the other side. I personally think that would really be a challenge, and difficult to work with, especially with any small detail. Perhaps could be done to make a larger style of sign.
Just a couple of random thoughts.
Best of luck.
Al