Initially the bookcases were 90cm wide .
This was revised to 80cm in 1988 following complaints from customers that the shelves bent under the weight of the books and the item did n't fit on IKEA transport pallets .
Initially the bookcases were 90cm wide , but this was revised to 80cm in 1988 following complaints from customers that the shelves bent under the weight of the books and the item did n't fit on IKEA transport pallets .