Strength of non-olympic barbells?

I've just bought a barbell for use in the garage - just wanted to do
stuff at home like cleans, HCP, and military presses. I have thought
about getting some squat racks at home, too, though.

The barbell I've bought is 5ft long, and has those spinlock collars.
It feels quite solid and strong, and with not beling too long, it
feels quite robust.

But it's not an olympic bar - and with that in mind, what sort of
weight can you realistically / safely go up to with a non-olympic bar,
before I should think about splurging on the full monty.

There's no info with the barbell at all, so no hint, there of a kind
of max safe weight - and although I've lifted for a little over 20
years, I've always really gone to gyms and used olymipc barbells.

.