We are so sorry to learn of your unhappiness and hesitation. This wall flex cabinet offers a variety of shelving that can be reconfigured at any time as your storage needs change. Our Installation/Assembly instructions under Info & Guides section here can give more insight into the installation process, and your Hampton bay Customer Care Team is here to help if you have any questions or warranty concerns. We are available by phone at (888) 578-4009 or by email at homeproducts_cc@woodmark.com, and we always look forward to helping in any way possible. Once assembled, your cabinet should measure approximately 30 inches in width, 18 inches in height, and 12 inches in depth. If the item you received does not appear to be correct, however, the team at your nearest Home Depot can help with a return so that you can quickly get just what you and your wife had in mind. Additionally, they can help with the purchase of any installation hardware needed to securely anchor the cabinet to the wall. We wish you all the best in creating a space in your wife's sewing room that you both will love, and we appreciate you making Hampton Bay a part of it.