I'd say, looking back, we were middle class, although to me, at the time, we were quite poor.
We emigrated from England when I was 4. Dad originally worked at the Steel Works, but hated it & wanted out. He was offered a job at Waltons, but needed a car & he didn't have a license, so he lied, bought a crappy car & off he went. We rented a really crappy, run down miners cottage, and he travelled into the 'city' (Wollongong) each day.
Once both me & my sister were at school, Mum worked part time as a school clerical assistant. I was about 11 at that time. We eventually moved to a better mining cottage (it was still crap, but we had a flush toilet out the back instead of a dunny). They were officially squatters, as the land belonged to the mine, and when someone moved out, someone else just moved in & 'bought' the house from the previous owner at a silly price, as it was known that the mine could evict you at any time. At some stage the mines allowed the residents to purchase their properties, for a token of their worth, & they 'officially' owned them.
My parents spent every cent they earnt. Once they were on their feet, dad bought a new car every couple of years, and smokes, booze & holidays took up all they had.