Whether it is cheaper to buy or build a shed can depend on several factors such as the size, materials used, and the level of customization desired. Generally, buying a pre-built shed can be less expensive and quicker than building one from scratch. Pre-built sheds are typically made in a factory and then delivered to the customer's location, which can save on labor costs and reduce the amount of time required to build the shed. Ultimately, the decision to buy or build a shed will depend on the individual's budget, time constraints, and desired level of customization. It may be worthwhile to compare the cost and time requirements of pre-built sheds and building one from scratch before making a final decision.