grab bar

i see a lack of fusion in this area. Nothing major and easy to fix, it's the vertical line that looks like a crack where the two pieces meet. This is caused by a cold weld, travel speed too fast and no gap. If you are going to grind your welds down for appearance reasons, bevel the area with your grinder before. Increase voltage and WFS and slow down your travel speed. Use your grinder with a 1/8" or a wheel equivalent to, grind these areas out without going completely through, then reweld.

This design of grab bar will have little side to side support since you used flat steel plate. Unlike angle iron or tubing