$85,000 a year! How? Assuming you have been in business for 10 years and average 30 jobs per year. That means you have around 300 past customers who already trust your work. Now lets assume that in 2008 you can convert just 5% of them into deck sales, thats 15 jobs. According to the U.S. EPA (Enviromental Protection Agency) the average cost of a composite deck job is approximately $5,000. That means you would have an additional $75,000 in sales for 2008. Now assuming that the demand increases at a 10% rate (actual estimates are 12-13%) then by 2011 your demand will be 20 jobs and $100,000 in sales. If you look at the sales over all 4 years the average ends up being $87,018.75, not bad for a simple expansion of your offerings.