Ayr United chairman Lachlan Cameron insists a 20-team Championship would be "ideal" ahead of a new reconstruction proposal.
Ann Budge is expected to hand over her plans for a revamped SPFL this week as the Hearts chair aims to save her club from relegation.
But Cameron insists he won't vote for Budge's resolution unless the top two leagues see large-scale expansion.
The Ayr supremo reckons it's imperative that the Championship is expanded to avoid teams facing each other four times in a season.
Speaking to Sky Sports, he said: "Going to 14, to me, if it's just a temporary fix I don't think that's appropriate.
"I don't like 14 much more than I like 12, and 16 is okay but I don't think it's much better than that.
"The best case scenario would be to have a league of 18 or 20 but I don't see that happening.
"Now that could be a possibility down in the Championship and I think that would be ideal, I think it would be great to have a 20-team Championship.
"I wouldn't vote for a 14-team Premiership, put it that way, unless the Championship got something out of it.
"I think it would be ideal if we had a 20-team Championship, I think it would be more entertaining for the supporters.
"They won't get bored of seeing the same team four times a year minimum."
