Little Cottage Co. 12 x 14 Classic Workshop Shed Precut Kit

Hi there, Regarding the shed sizes you're looking for: For a 14x12 shed, we have the Little Cottage Co. 12 x 14 Classic Workshop Shed Precut Kit and the Little Cottage Co. 12 x 14 Foot Value Workshop Shed - Precut Kit. For a 15x18 shed, the closest size we offer is the Little Cottage Co. 14 x 18 Classic Large Barn Precut Kit. Our sheds, including these Little Cottage Co. models, do not come with cement floors. The shed floor is typically available as an optional accessory or is not included with the kit. If you opt for a floor kit, it provides the structural frame only and does not include the actual flooring material; you would need to source flooring materials like plywood or OSB sheathing locally. For a cement floor, you would need to prepare a field-prepped foundation or use a foundation kit as a form to pour concrete directly over it. We do not offer customized sizes or installation services. Please let me know if these sizes work for your needs.