This was a year marked by robust demand in both our professional and residential segments. We delivered record results for fiscal 2021 with full year net sales up over 17% and adjusted diluted earnings per share up nearly 20%. Thanks, Julie, and good morning everyone. Olson - Chairman of the Board, President and Chief Executive Officer With that, I will now turn the call over to Rick. Non-GAAP financial measures should not be considered superior to or a substitute for the GAAP financial measures presented in our earnings release and this call.
We believe these measures may be useful in performing meaningful comparisons of past and present operating results and cash flows to understand the performance of our ongoing operations and how management views the business. Reconciliations of historical non-GAAP financial measures to reported GAAP financial measures can be found in our earnings release or on our website. In addition, during this call, we will reference certain non-GAAP financial measures.
Please note that we do not have a duty to update our forward-looking statements. Our earnings release, as well as our SEC filings detail some of the important risk factors that may cause our actual results to differ materially from those in our predictions.
You all are aware of the inherent difficulties, risks and uncertainties in making predictive statements. During this call, we will make forward-looking statements regarding our business and future financial and operating results. We begin with our customary forward-looking statement policy. On our call today are Rick Olson, Chairman and Chief Executive Officer and Renee Peterson, Vice President and Chief Financial officer. Our earnings release was issued this morning and a copy can be found in the Investor Information section of our corporate website,.