How much tubing?Here is the cut list for the book chassis.
http://www.mcsorley.net/locost/drawings/BookChassis.xls1/8" PLATE 32 sq. in.
1" SQ. 16ga 1210.00 in.
3/4" SQ. 16ga294.20 in.
3/4" OD 16ga290.75 in.
110-ish feet of 1"x 1" 16ga tubing if you don't plan on making mistakes, more if you do.
You will need
25 ish ft feet of 3/4"X 3/4" of 16 ga RHS and
25 ish ft feet of 1" 16ga Round tube.
The book suggests 16ga which is .065 thick and comes in at .649 lbs/ft.
Multiply these numbers by 110 to get a chassis worth of tubing and you get:
16ga chassis:
71.39lbsNote this number is only for 110' of 1"x1" tubing ... not welded, no 3/4" tubing, no 1" round tubing, no floor, no roll bars, no brackets, or suspension pickup points!
Further reading:
http://www.locostusa.com/forums/viewtopic.php?t=68
How much Does your frame weight?viewtopic.php?t=3941