Most commercial beeks I know buy their equipment. Two reasons for this. One is the labor involved is just too much. They already spend enough time just maintaining existing equipment and their hives. Taking the time to make it plus the expense of the machinery to make and put together boxes would be a full time job. Second, by buying in bulk, for us anyway they are almost cheaper then just buying the wood. Combine that with the time and cost of equipment and it comes out way cheaper to order in bulk.
Just my two cents.
Life is tough, but it's tougher when you're stupid.” John Wayne