3Q25 William Blair Composite Decking Survey Question Title * 1. Please identify yourself. Builder/Contractor Retailer Distributor Question Title * 2. Quarter growth (year-over-year)? Above 16% 16% to 12% 12% to 8% 8% to 4% 4% to 1% -1% to 1% -1% to -4% -4% to -8% -8% to -12% -12% to -16% Below -16% Question Title * 3. Has business remained the same / worsened / improved over the past quarter? Remained the same Declined Improved What is driving business conditions? Question Title * 4. Are you seeing more trade down to lower price point products? Select all that apply. Yes, lower price composite Yes, more wood No Question Title * 5. Is wood gaining share? Yes, I'm selling more wood decks. No, I'm selling less wood decks. No change Question Title * 6. Which do you mainly work with? Select all that apply. Trex TimberTech/Azek Fiberon Deckorators Other (please specify) Question Title * 7. Are you loyal to one composite brand? Yes, to Trex Yes, to TimberTech/AZEK Yes to another Not loyal to one brand, but will only use 2-3 brands No Question Title * 8. How have backlogs changed since last quarter? Backlog is down from last quarter Backlog hasn't changed from last quarter Backlog is up from last quarter Question Title * 9. Outlook for total growth in 4Q25? Above 16% 16% to 12% 12% to 8% 8% to 4% 4% to 1% -1% to 1% -1% to -4% -4% to -8% -8% to -12% -12% to -16% Below -16% Question Title * 10. Has AZEK/James Hardie been more aggressive? Select all that apply. Yes, with more rebates Yes, with more marketing Yes, with more sales incentives (such as vacations, concerts, etc?) Yes, with greater sales presence No Question Title * 11. Thank you for your input.If you would like a copy of the results, please share your name and contact information. Name Company State/Province Email Address Phone Number Question Title * 12. I am interested in being called by William Blair to discuss my results. Yes Done