A deck building business builds new decks, replaces old ones and often adds porches, pergolas and railings. Most of the work is in spring and summer, so the business is planned in winter: designs, permits and signed deposits. Many deck builders are carpenters who want projects they can finish in a week.
- Most decks need a permit and inspections. Price the time to get them.
- Contractor licensing often applies above a dollar amount.
- OSHA requires fall protection at six feet in construction; many decks are higher than that.
- Book the spring in the winter, with deposits.
1. Decide what you will offer
| Work | Who asks | Notes |
|---|---|---|
| New wood decks | Homeowners | The core of the business |
| Composite decks | Homeowners | Higher tickets, often financed |
| Deck replacement on old framing | Homeowners | Inspect the framing before you price |
| Railings and stairs | Homeowners, realtors | Priced by the foot and the step |
| Pergolas and covered porches | Homeowners | Engineering and permits |
Pressure washing and staining companies see rotten decks every week. Ask them to send you the ones past saving.
2. Check the license and permits
Decks are structures, so most towns require a permit and inspections of the footings and framing, and many states license contractors above a dollar amount. Our general contractor licensing guide covers each state.
3. Plan for fall protection
OSHA says fall protection is required at six feet in the construction industry. Many second-story decks put your crew well above that while framing. Plan guardrails, harnesses or safe work platforms before you hire.
4. Register the business and set up taxes
The SBA lists the launch steps in this order: pick a location, choose a structure, choose a name, register, get federal and state tax ID numbers, apply for licenses and permits, open a business bank account, and get insurance. For a deck building business working out of a truck, the location is usually your home address and the area you will serve.
- Structure. A sole proprietorship is the simplest. An LLC keeps the business separate on paper. Ask an accountant which fits your state and your plans.
- Tax ID. The IRS gives out an employer identification number (EIN) online, and says you never have to pay a fee for one. Websites that charge for an EIN are not the IRS.
- Self-employment tax. The IRS lists the self-employment tax rate as 15.3%: 12.4% for Social Security and 2.9% for Medicare. Income tax comes on top, so set money aside from every job.
- Bank account. Open it before the first payment lands, so every dollar in and out is easy to find at tax time.
5. Pick a name customers can say and find
Your name goes on the truck, the invoices, the Google profile and the yard signs, so pick it once. The free deck building name generator gives 36 ideas for your town and style, each with a domain idea, and lists the checks to run before you commit: your state's business name search, a federal trademark search and the domain itself.
6. Get insured before the first job
The SBA describes general liability insurance as cover for financial loss from bodily injury, property damage, medical expenses and defending lawsuits. It says businesses with employees are required to carry workers' compensation, unemployment and disability insurance, and some states ask for more.
Deck claims are collapses, loose railings and injuries on the job. Ask your agent about general liability with completed work, commercial auto, and workers' compensation once you hire.
7. Gear up and add up your startup costs
No total here on purpose. What you spend depends on what you already own, new or used, and how much work you plan to take on. Price your own list with a local supplier, then put the numbers in the startup cost table of the free business plan generator, which adds them up for you.
- Circular, miter and reciprocating saws
- Framing nailer, impact drivers and a compressor
- Post hole auger or digger, levels and string lines
- Ladders, scaffold or a safe platform for high decks
- A truck and trailer for lumber and composite
Most deck builders start with framing tools they already own. A trailer that carries a full deck package is the first big purchase.
8. Set your prices
Start with a takeoff: footings, framing, decking, railings, stairs. Price railings by the foot and stairs by the step, outside the square foot number. Our guide to pricing deck building has a worked composite deck, and the free deck cost calculator, board foot calculator and framing calculator do the math.
9. Find your first customers
- The neighbors. A new deck gets noticed. Koira mails the homes nearby.
- Pressure washers and stainers. They find the decks that need replacing.
- Realtors. Buyers want a deck fixed before closing.
- Your site. Koira builds it with photos of each finished deck.
10. Get paid and keep the customer
Take a deposit at signing to order lumber, offer pay over time on composite decks, and bill the balance at the final inspection. Ask for the review the week it is finished.
11. Grow past one truck
A second carpenter turns a two-week deck into a one-week deck. Read how deck builders run on Koira.
Sources
- SBA: Launch your business (the launch steps), checked October 8, 2026
- SBA: Get business insurance, checked October 8, 2026
- IRS: Get an employer identification number, checked October 8, 2026
- IRS: Self-employment tax (Social Security and Medicare taxes), checked October 8, 2026
- OSHA: Fall protection, checked October 8, 2026
Last checked October 8, 2026. This page is general information, not legal or tax advice. Rules change and differ by state and city, so confirm with the agency named before you act.