A : long 44 wide 31.5 high 8.5 inch, Gross weight :59.5 lbs B : long 44 wide 30.5 high 8 inch, Gross weight :56.5 lbs C : long 44 wide 31 high 8.5 inch, Gross weight :56 lbs Answer: The acrylic backboard of the 1269 is a more rigid material than the plastic backboard of the 1221. Acrylic's stiffness produces better bank shots, rebounds and holds up better than the plastic backboard. Question: Is it regulation height Answer: Yes, but because of the assembly method, it can be imprecise at its highest setting. I ended up measuring and adjusting with wood to make sure I was getting exactly regulation height. Question: what are the dimensions of the backboard?Is it 44 inches square? Answer: It is rectangular--44" long and 34" high (to be exact, it says the dimensions are 44.5 x 34.5). This item is in the category "Sporting Goods\Team Sports\Basketball\Basketball Hoops". The seller is "charmface" and is located in this country: US. This item can be shipped to United States.