It wouldn’t have cost me much more for the building itself to go 16x24, but the transport fees would’ve been dramatically more due to highway permitting. When you get over 12’ wide you have to pay for an oversized load and for escorts. I would just build it myself if I went over 12.’ Also, I built/dug the gravel pad myself to save money. Concrete would have cost me a lot more, not to mention that the city considers it being on gravel as being a temporary structure, so it doesn’t get taxed on my property taxes. Sheds Unlimited in Lancaster, PA did a great job and they did it delivered for less than $500 more than it would’ve cost me to build it myself.