Is there a neater way to insert a space between strings than something like " "?

Question

When I write out a string combined with several strings (i.e. use stringbuilder or concat), I need to insert a space between each string. I'm often doing that like this:

StringBuilder sb = new StringBuilder();
sb.Append("a" + " " + "b");

Is there a more concise way of doing the above?

Thanks

Answer 1

It's bizarre how many people just completely ignore the AppendFormat method on StringBuilder:

sb.AppendFormat("{0} {1}", str1, str2);