Depends on the item. IKEA is known for it’s cheap and flimsy particle board furniture, but it also sells solid hardwood furniture that is quite solid and well built.

I have a $99 table and 4 chairs that i bought from them something like 8 or 9 years ago. Still holding up very well, though I can see how some of their other stuff wouldn't do so well.

That’s very noticeable in the price though.

It's still cheap compared to comparable alternatives though.