Framing

[CrustyMono]

Wanted to use all 1.5" square tubing tubing but the price is way too high. If I use all 1.5" by 1.5" by 1/8" angle, held together with 3/16" rivets and flat bar and more angle will my frame be strong enough? considering adding vertical supports. Should I use a combination of tubing and angle? will it be way heavier to use tubing?

https://imgur.com/a/lm6rRtE

 

[gwar822]

ive seen success using just angle, should be good =P

 

[BigTerp]

I used all 1" x 1" by 1/4" to frame out the floor and deck extension on my 1648. Zero issues.