Boise Cascade shareholders elect 12 directors, approve executive compensation, ratify KPMG as auditor

Proposal No. 2 - Advisory Vote to Approve Executive Compensation The nonbinding advisory proposal to approve the compensation of our named executive officers as described in the Proxy Statement was approved. The final voting results are set forth below: For Against Abstain Broker Non-Votes 33,421,071 2,076,468 83,091 1,105,045

Proposal No. 1 - Election of Twelve Directors Shareholders elected twelve directors: Thomas Carlile, Steven Cooper, Craig Dawson, Karen Gowland, David Hannah, Mack Hogans, Amy Humphreys, Nate Jorgensen, Kristopher Matula, Duane McDougall, Christopher McGowan, and Sue Taylor, each to serve a one-year term expiring at the Company’s annual meeting in 2024. The final voting results with respect to each director-nominee are set forth below: Nominee For Against Abstain Broker Non-Votes Thomas Carlile 34,622,811 912,620 45,199 1,105,045 Steven Cooper 35,245,654 289,881 45,095 1,105,045 Craig Dawson 35,285,081 250,126 45,423 1,105,045 Karen Gowland 34,540,922 999,094 40,614 1,105,045 David Hannah 34,622,715 912,490 45,425 1,105,045 Mack Hogans 30,863,595 4,671,319 45,716 1,105,045 Amy Humphreys 35,316,542 223,290 40,798 1,105,045 Nate Jorgensen 35,272,893 262,551 45,186 1,105,045 Kristopher Matula 34,624,157 912,328 44,145 1,105,045 Duane McDougall 34,322,131 1,213,448 45,051 1,105,045 Christo

Proposal No. 3 - Ratification of Independent Accountant for 2023 The proposal requesting ratification of the appointment of KPMG LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2023, as described in the Proxy Statement was approved. The final voting results are set forth below: For Against Abstain Broker Non-Votes 36,292,385 350,382 42,908 —