cutting headliner for generic benroy

Question: It says to cut 5x5 plywood to 2 pcs 48" ea plus 1-12" piece. Why not leave 1 piece a full 60" plus 48"? Is there a reason I'm not seeing to have the 12" piece if you glue them together anyway?
or t n ttt for short (tnttt.com)
https://www.tnttt.com/
Frosteez wrote: Why not leave 1 piece a full 60" plus 48"? Is there a reason I'm not seeing to have the 12" piece if you glue them together anyway?