Trailer sign size?

[Top-Notch]

I'm in the market for a new sign for the back of my trailer, and was wondering how big everyone else's is? I was thinking of something like 5'x3' but then came to thinking maybe it doesn't need to be quite so big? Any input?

 

[Southern stang]

Have you thought about a wrap? Is this an open or closed trailer?

 

[Top-Notch]

It's an open trailer....for now

 

[MDerleth]

Bigger the better. And not knowing what you have now, make sure it's not too cluttered and very readable as potential clients are seeing your sign at 30-50 m.p.h.

If you had an enclosed trailer or van, I'd second the vote for a wrap. Those can look way, way cool.

 

[Southern stang]

I agree with Md. The bigger the better. Which means easier to read from farther away.