If you're handy with building projects and enjoy being outside, you may wish to consider starting your own deck construction business. Initially, you could do this work during evenings and weekends so that it doesn't interfere with your day job, but you may find that you're busy enough to consider making the jump to full-time work. Building a deck requires a long list of hand tools, which you'll likely have if you do your own projects around the house. What you won't likely have, however, is the larger supplies that you'll need for building decks. Although you can rent the following items, it may be more cost effective to buy them yourself.
One of the keys to any good deck is its foundation, which includes posts set in the ground and surrounded by cement. If you're wanting to work quickly, as well as look professional, you should avoid mixing cement in a wheelbarrow. Instead, you may wish to consider buying a small cement mixer. This device is handy because it turns on its own; this means that you won't have to continuously mix the cement with a shovel, as you need to do when using a wheelbarrow. A small cement mixer is equipped with a hitch so that you can tow it behind your truck.
Some clients may wish to have a flat layer of stone dust placed beneath and around their new deck. Although you can tamp the stone dust down with a hand tamper, you're better off buying a power tamper. This essential building supply will help you get the job done faster and with less physical exertion; instead of having to raise and lower a hand tamper, you simply hold onto the handles of the power tamper and let it bounce up and down.
An auger is another essential construction supply for anyone who wishes to build decks. Depending on where the frost line is in your area, you may have to dig down several feet to set the posts for the deck. This isn't a job that you can do with a shovel, so an auger will be a valuable ally. A power auger should get the nod over a manual one; the latter requires you to exert significant physical effort, while the former simply requires you to hold the auger as it turns. With this tool, you'll get the holes for the posts so that they're straight and as deep as you need.