/diy/ - Do It Yourself

>>1598302
>I need it to hold up half a car by Friday so I can work under it.

Nigga r u srs? You gonna die.

The most obvious issue I see is the complete lack of bracing against lateral forces parallel to the main span. The fact that those loads would be taken in an unfavorable direction by the weakest parts of the structure isn't helping, either. Even moderate force in that direction is going to cause the thing to collapse sideways. I MIGHT try it for a short lift of a light load, but no fucking way would I ever get under anything held up by that "design".

You'd honestly be better off making a wooden one. Braced appropriately, it would be far safer.

>>1433098

>>1277280

>48205 area
>$1