You can start by measuring the width of the space to check if the area will be levelled and big enough, followed by the length of the installation space that you have. The building height is defined as the lowest point closest to the sides of the structure, which is also identified as “sidewall height”. All the area includes the width, length and height should be levelled and have flat surface. Please ensure that you have enough space for leg heights as this way you can change your building to a fully enclosed Garage or add a door to your metal building at a later stage. Overall, you will need to prepare a space that is large enough for your structure and can accommodate installation of the carport or metal building easily.