The interior layout of the house differs from the outside plan of the house. Standing out front of the house there is the family room on the left, then the front door and dining room in the center, then the garage on the right. The inside floorplan has a hall going to the right leading to the bedrooms. To the right is the garage, so the bedrooms for Sue, Axl, and Brick would have to be in the garage. Some scenes do show a small extension on the right side of the house, but it is too small to be the boys room and could not include Sue's room at all. Additionally, the floor level of the house is at least 4' higher than the garage floor level, yet there is no step down going from the front room into the hallway, plus when the door from the garage to the house is open the hallway and the garage floor are at the same level.
In multiple episodes, the Hecks are driving down the highway in a rather rural area and road signs on the other side of the road indicated exits for Lake Geneva and Kenosha. Both cities are in Wisconsin, and in those episodes the Hecks are not going anywhere near Wisconsin.
The family is pegged as being poor, so poor they can't even buy new appliances but yet Mike is the head of quarry and Frances has some income. There's no way they aren't making enough money to make ends meet and then some.
Throughout the entire series. The Hecks are broke. So broke they can't afford new appliances or name brand foods or repair some damages in their house or even pay all the bills on time or afford premium cable or even sometimes afford to get their kids what they wanted. Mike is the head of the quarry and he is supposed to have a good salary income, Frankie was also working as a car salesperson before becoming a dental receptionist and both of those jobs have good pay. There's no way the Hecks would be poor when Mike and Frankie have good paying jobs.