Standard bars don't work well in a normal sized power rack. They will probably fit on the J hooks but the weights end up INSIDE the hooks instead of outside.
However, if you have enough $$$ for a powerrack, at least invest in a $100+ 315 lbs Olympic set.
The bar may be crap but the weights are yours for life.
Buy another, better bar sometime in the future when you have more $$$.
I use my old 1" weights for bent rows, stiff leg deads, etc., all the supplemental exercises I do outside the power rack. That way I don't have to unload the bar and move it to the floor and reload it.