The shed building instructions provided on alwasely.com website should only be used as a guidance to help you build a shed or a barn according to your needs. I just thought sharing my personal experience may help you better plan your building projects.
The first question that needs to be asked before deciding to build a shed, purchase one or hire someone to build a shed is:
Is there a need for a shed?
In reality, the primary reason for buying or building a shed is to have extra storage. This may sound a bit silly if I tell you that the main reason, at least in my case, having exterior storage to place the lawnmower inside. We had plenty of space to store the lawnmower inside our garage but it means cleaning it after every use and also placing something underneath it in case of oil leakage which can cause a mess on the concrete floor of the garage.
Regardless what your reason(s) for having a shed, it simply just means you need extra space. Now, the question is should you buy a shed or build one yourself?
Buying a shed vs. building:
To be honest, this was the first question I asked myself. After visiting more than one local home improvement center, I decided to build a shed myself. Not really just to save money but to also enjoy the experience. You don’t have to be a skilled person but it helps if you have done woodwork before. It just makes the process much more smoother.
If you have already decided to build your own shed yourself, make sure to check the city/county requirements before moving forward. Depending on the size/square footage of the shed you are planning to build, you may be required to obtain a permit from the city/county.
Follow the steps below: 
Step 1:
Before you head to your local home improvement center (Lowes, Home Depot, etc.) to purchase materials, have a sketch of the shed you’re planning to build. Something like the diagram to the left.
Now that you have created a drawing of the shed you will be building, let us do some math before going wood shopping.
The following is a calculation for 6 ft x 10 ft, your calculation will be different based on the size/square footage of your shed. You should probably check these building tips before cutting any wood.
To calculate the area/floor of your shed, multiply width by length. In my case (6 x 10 = 60 sq. ft). You are probably thinking 60 square feet is good enough but wait… that is the exterior area but in reality, the interior is approximately (5’5″ x 9’5″ = ~ 52 sq. ft.), so you just lost around eight square feet. Let’s just say that is another thing I didn’t account for prior to starting the building process.
Step 2:
After you decide on the size of the building, it is always a great idea to estimate the cost of the materials needed to complete the shed project. Your initial estimate of the cost of materials should help you decide whether it is better/cheaper to build one yourself or buy a shed that is already built. If you plan to build a shed like the one described in this tutorial, check out the materials and power tools needed to complete the shed project.
Now that you are ready to start your shed building, let us start with the foundation.
