I ordered bins that are 11x11x11 because the dimensions of the cube area was 11.25 wide. But when I assembled it, the actual dimensions of the cube area is 11.W x 11.H x 13.D. if the width was 11.25 as described, the bins would fit. But because they are exactly the same width, they will not fit without some adjustments to the bins, which I think I can manage. Otherwise the assembly was very easy and it was a great alternative to laying a bookshelf on its side. This is very sturdy and no problems sitting on it. I also plan to cover the cushion as it does not match my room. Depending on the bin adjustment, I may buy another since I plan to use them as wall seating in my living room.
Be aware that a 11x11x11 bin will NOT fit
I ordered bins that are 11x11x11 because the dimensions of the cube area was 11.25 wide. But when I assembled it, the actual dimensions of the cube area is 11.W x 11.H x 13.D. if the width was 11.25 as described, the bins would fit. But because they are exactly the same width, they will not fit without some adjustments to the bins, which I think I can manage. Otherwise the assembly was very easy and it was a great alternative to laying a bookshelf on its side. This is very sturdy and no problems sitting on it. I also plan to cover the cushion as it does not match my room. Depending on the bin adjustment, I may buy another since I plan to use them as wall seating in my living room.