Advice on couch edge to edge distance Non Slide versus slide

I was thinking about purchasing a non-slide code to give me the maximum interior room when traveling on the road. It appears if you have two couches facing each other in the salon area you can have as much is 36 inches between the couches as face to face each other. However I looked at some double slide h3
And one Prevost marathon edge to edge spacing of 30 inches. Has anyone ever seen a double slide with more than 30 inches edge to edge between couches facing each other?






Thank you Dr Gary. Gboya12 @aol.com