Hi and welcome!
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					Originally Posted by SteveH1  Also do people weld up the open ends of the square bar on the chassis | 
	
 A good solution is to use pieces of 20x20 square section tubes to obstruct the ends of the 25x25 tubes. I made a post on my blog about this:
http://vouchtroadster.blogspot.se/20...-end-caps.html
Not my idea, but I tried it and it is very easy and gives a very nice result.
Good luck with your build 
