This shelf built as a scaffold is very stable and very robust, with side rails so wide steel with medium shelves (MDF) screwed securely, and steel reinforcing bars. Unusually, additional bolts is included in the package. It is good to clarify that dimensions are overall, the feet are included in it. The useful length of 76cms and 80cms not. I highly recommend this to people looking for buying a narrow shelf ready to welcome your 30cms heavy storage. Very good value. Again thank you for this purchase very satisfactory and quickly delivered from Germany.