Peter D. Arvan
President and Chief Executive Officer at Pool
Thank you, Melanie, and good morning to everyone on the call, and thank you for joining us. 2022 was another extraordinary year for POOLCORP. We achieved results in revenue and earnings. We grew our market share. Our focus on the customer experience and execution has never been stronger, and we continue to enhance our capabilities as we integrated Porpoise Pool & Patio. For the first time ever, we exceeded $6 billion in net revenue, ending the year at $6.2 billion and generated just over $1 billion of operating income. When compared to 2019, the last prepandemic year, our revenue has almost doubled and our operating income has tripled. We now operate over 420 sales centers, and we are continuing to expand our footprint and capabilities. In 2022, we opened 10 new locations, and Pinch A Penny added seven new stores to the franchise network. The industry has grown substantially, and POOLCORP has significantly outpaced the industry by providing best-in-class service to our customers and helping them grow their business and being the best channel to market for our suppliers. Let me now recap the full year and quarterly results. As I previously mentioned, total sales for the year came in at $6.2 billion, which represents a 17% increase over 2021, where we saw sales grow an incredible 35%. In the fourth quarter of 2022, we grew revenue 6%, and this is on top of the 23% growth that we saw in 2021. From a base business perspective, fourth quarter revenue grew by 7% in our year-round markets and fell by 6% in the seasonal markets.
Certainly, the less favorable weather impacted the business in both markets, contributing to fewer pools being built and lower usage in the quarter as compared to last year. For the full year, our base business grew by 15% in our year-round markets and 8% in the seasonal markets. Our growth was driven by the resilience of the industry and the larger installed base, inflation, greater adoption of higher-end features and technology, share gains and expansion of our powerful sales center network, both organically and by acquisitions. POOLCORP has built a tremendous team and a footprint that is not only focused on execution but also providing an unmatched customer experience, which enables us to be the preferred supplier to the swimming pool industry trade. Our execution-focused and unmatched capabilities have allowed us and will continue to enable us to outperform the industry. Our culture and people are performance-driven, our investments in capabilities and new facilities drive revenue growth and incremental profitability and our track record is unmatched. Simply put, we could not be prouder of our team. Now let me provide some details on base business sales in our four largest markets. For the total year, California grew by 14%. Florida grew by 24%. In Arizona, we saw 18% growth, and our Texas business grew by 8%. It is worth noting that Texas in 2021 had the benefit of the freeze, which made the comps much more difficult for 2022. For the fourth quarter, California grew by 5%. Florida continued to show significant growth with sales up 22%. Arizona sales were largely flat for the quarter, and Texas saw sales decline 5%.
Turning to end markets. Our commercial business continues to gain momentum with the fourth quarter and full year growth coming in at 27%. This is on top of 26% growth in the fourth quarter of 2021 and 24% growth for the full year. We continue to gain share and capture the demand in growing municipal and leisure and travel-related spending. Shipments to our base business retail customers in the fourth quarter were up 1% and for the full year up 9%. This is on top of the 18% fourth quarter 2021 growth and a 20% increase that we posted for the full year of 2021. We believe that weather and some change in buying habits as the supply chain returns to normal affected the fourth quarter. We feel that, with the supply chain issues in 2021, many dealers placed larger orders in the fourth quarter of 2021 to make sure they had product available when the 2022 season began. With product availability almost back to normal level, most dealers reverted to more normal ordering patterns by the end of 2022. Pinch A Penny retail sales, unlike our shipments to dealers and contractor customers, represents sales through to the end customer, saw sales increase 17% for the quarter and year. Keep in mind that the footprint for the Pinch A Penny franchise store network is highly concentrated in Florida, with an expanding presence in Texas and a small number of stores in Gulf states. We continue to gain synergies where significant value is being derived for both the franchise and wholesale business. With one year of ownership now under our belt, we remain confident and on track with our initial expectations. Now let me add some commentary on specific product sales in the quarter and year. Equipment, which represents about 1/3 of our sales, increased 9% for the year and 2% for the quarter.
With lead time and availability of equipment mostly back to historic levels, our dealers changed their buying habits back to a more normal practice of purchasing equipment as needed during the construction and repair process as most availability concerns have abated. Demand in units for equipment, which surged last year and early this year, has retracted some but remains higher than pre-pandemic levels. Pricing has held with no weakness, so the overall impact on our revenue was positive for the quarter and for the year. Base business chemical sales for the quarter were up 19% and 32% for the year, reflecting share gains, installed base growth and inflation. Product availability has improved dramatically over the previous year, and we are now well stocked for the upcoming season. We have refreshed our brands, and we'll begin launching our POOL360 Water Solution software in 2023 for our independent retail dealers, which we believe will be a best-in-class growth tool for our retailers. This will allow us to continue to take share in the very important maintenance and repair market. This is our next generation offering in our software solutions for the trade. POOL360 usage continues to grow and now makes up about 11% of our total lines. Building materials, which are used in both new construction and renovations were flat in the quarter as compared to the 20% growth of this category in the same quarter of 2021 and 42% in the fourth quarter of 2020.
For the full year, building materials sales were up 18% on top of the 28% growth that we saw for the full year in this category in 2021 and 23% growth in 2020. Clearly, the reduction in new pool construction in 2022, these results illustrate that a solid remodel market, and our share gains are fueling our growth. It is particularly obvious in the fourth quarter when we believe that new construction was the slowest in 2022 and compares to a much stronger build level in the fourth quarter of 2021. Now I'd like to provide some insight on Europe. As we have seen all year, the market in Europe has been affected not only by less favorable weather but the Russia-Ukraine war, elevated energy costs, inflation and a slower economy. Europe's fourth quarter 2022 net sales were down 22.5%. For reference, the same quarter in 2021 was up 18% and 48% in 2020. For the full year, we saw sales decline 15% in U.S. dollars. Net sales in Europe for the full year of 2021 were up 39%. Looking across the continent, the Eastern and Northern countries were affected much more by the factors that I listed above. We believe in the longer-term growth opportunities in Europe and our team's ability to manage the business while providing best-in-class service in a very dynamic environment. Let me now provide some comments on Horizon's performance for the quarter and for the full year. In the fourth quarter, net sales increased 5%, and for the full year, net sales increased 15%. In 2022, we opened five new locations, one in the first quarter and four in the fourth quarter.
Our strategy for this business remains unchanged. We are investing in areas where we need additional capacity and expanding our footprint further into the Sunbelt primarily through new sales center development activities. Our operating model is solid. The team continues to execute at a high level, and we are encouraged by the long-term growth opportunities of this business. Although this business is more tied to residential construction than the blue business, we also have a large commercial business that is holding up quite well and is also benefiting from inflation. As you saw in this morning's release, for the full year, our gross margins increased 80 basis points to 31.3%. This follows the 180-basis point increase that we realized in 2021 over 2020. For the fourth quarter and in line with our previous guidance, our gross margins declined 230 basis points, ending at 28.8%. Given the seasonality of our business, with margins fluctuating quarter-over-quarter, we believe that the full year number is far more indicative of where we are from this -- for this metric. Melanie will provide some more detail on our gross margins in her comments. Moving on to operating expenses. We continue to show that we can improve our operating leverage through our relentless focus on capacity creation and execution. Base business operating expenses decreased by 1% for the quarter and increased by 6% for the full year. In both cases, we continue to show that our expense growth is about half of our revenue growth contributing to our improved operating leverage.
Wrapping up the income statement. We were very proud to post operating income of just over $1 billion. This compares with $833 million that we recorded in 2021 and $464 million that we recorded in 2020. For the quarter, we recorded $107 million in operating income, a 16% decline, most of which is driven by the seasonality of our business and magnified by the relative size of the quarter. Here, again, I would point you to full year results as a better indicator of performance, on which Melanie will provide additional comments. Operating margin for the full year of 2022 was 16.6%, which is 90 basis points better than our previous record high that was posted in 2021. Looking ahead, I'd like to provide some color and context on how we expect to see 2023 taking shape. There is no doubt that our industry and POOLCORP have benefited from several factors over the last few years that will have a lasting impact on our industry. Desire for swimming pool and outdoor living has increased with both viewed more favorably and desirable for homeowners today versus the past. This is especially true as more people are migrating to the Sunbelt in search of a comfortable year-round climate and a healthy outdoor living lifestyle. New connected product adoption rates are increasing.
The value of the goods and services related to the maintenance, renovation and construction of swimming pools and outdoor living has increased, propelled by unprecedented inflation that is now embedded in the industry. We are continuing to expand our footprint and leverage our capacity creation activities to anticipate and improve the customer experience. And we remain closely aligned and partnered with our key suppliers, working together to improve the industry and homeowners' ability to enjoy their pool and outdoor living spaces. At the same time, and underpinning our results is a growing and aging installed base that will need to be maintained and remodeled. As new construction levels will likely decline in 2023, the wholesale value of the pools built, should in fact be at least 4% higher on a per unit basis driven by inflation alone. Add to this, the specific competitive advantages unique to POOLCORP, and it gives us the confidence that 2023 will be a solid year. Our people and network are second to none. Our balance sheet is strong, giving us flexibility to take advantage of dynamic market conditions and investing in the future. Our CSLs, vertically integrated chemical facility, PLEX programs, technology applications for the customer and our proven team will enable us to get the most out of whatever market conditions present themselves. Our seasoned leadership team has been -- has seen many cycles and is quite skilled at managing the business in line with volume realities. As of right now, we expect that new pool construction in units could be down approximately 15% to 20%, although this number will likely vary broadly by market and geography.
Higher end markets will be stronger, while lower end and entry-level pools will continue to see headwinds. Renovation and remodel should be solid in most markets as we believe renovation activities may see only a modest decline in 2023. These considerations are baked into our guidance. Inflation at this point looks to be in the 4% to 5% range for the year. We see little to no risk of deflation except for trichlor but movement in that chemical will likely be offset by others. Overall, we expect the chemical sales in line with the installed base growth and of course weather, which is the largest driver of chemical needs, particularly in the seasonal markets. With supply chains returning to normal, we expect that customers' buying habits largely have and will continue to return to normal. With all of this in mind, we would expect that our EPS range for 2023 will be $16.03 to $17.03 on a per share basis, including an estimated $0.03 benefit from ASU. Again, for context, I'd like to remind our listeners that the bottom of our range is, in fact, over 2.5 times our full year 2019 results. From a cash generation perspective, we would expect that free cash flow will exceed net income as inventories return to a more normal level, and our capital allocation model remains unchanged. As is typical, we will use our cash flow to invest in our operations, growth and expansion. We will, with the approval of our Board, continue to pay dividends in accordance with our policy, fund acquisitions and continue to buy back our shares to provide returns to our shareholders. In closing, I would like to thank the POOLCORP team, our incredible customers and our invaluable supplier partners for their unyielding support. I'll now turn the call over to Melanie Hart, our Vice President and Chief Financial Officer for her detailed commentary. Melanie?