PreBuilt or DIY
A lot of people whether they should buy a prebuilt Storage Shed or build it themselves from scratch. I won’t recommend either but I will give you the advantages of both.
Prebuilt - These come in kits and are pre cut at the factory meaning you only have to assemble them. There are no concerns about having bought enough material or whether you’re cutting everything to the right size. However they can be a bit pricey, but if you look at your time saved there might not actually be that big of a difference in price.
DIY - Will often times be cheaper, and you can customize it to exactly what you want. However you do have to figure out all the materials, costs, and plans yourself. This can also be much more time consuming to build.
So now that you know the facts you can make an informed decision.