Room for tires

How much space should I keep between the tire and the sidewalls?
or t n ttt for short (tnttt.com)
https://www.tnttt.com/
madjack wrote:I use the "knuckle" rule..between 1-1.5"s.....
absolutsnwbrdr wrote:A knuckle?!![]()
Mine may be a little close.![]()
My 3/4" sides sit against the outside face of the trailer frame rails, so my clearance is pretty tight. When I finished the trailer, I knew that it was close (~3/16") but when I went to repack the bearings this Spring, I realized that the one side has actually rubbed a little.![]()
The trailer saw well over 2k miles since its completion last Spring, and the tire doesn't show any wear on the sidewall so I'm just gonna keep on truckin.
I know... its not ideal, but so far so good.