Does sheet metal work for a box topsheet?

[BkCountrySkrMO2]

i got this 16 ft. long peice of sheet metal, is it ok to slide on? how can i protect against the edges? how can you cut sheet metal?

 

[fouldsys]

https://www.newschoolers.com/ns3/web/forums/readthread.php?thread_id=217679&

 

[Bobert]

ive got a rail w/ sheet metal, it doesn't slide that great.