Depreciation is computed using the straight-line method over the following estimated useful lives:
 
Leasehold improvements, buildings and structures
10-27 years
Machinery and equipment
3-15 years
Furniture and fixtures
3-15 years
Automotive equipment
3-5 years
Computers and software
3-7 years
Property, plant and equipment consisted of the following as of February 28, 2026 and February 28, 2025 (in thousands):
As of
February 28, 2026February 28, 2025
Land$55,652 $52,033 
Building and structures371,693 313,036 
Machinery and equipment536,855 424,342 
Furniture, fixtures, software and computers30,643 29,900 
Automotive equipment2,864 2,688 
Construction in progress45,580 153,145 
1,043,287 975,144 
Less accumulated depreciation(433,982)(382,203)
Property, plant, and equipment, net$609,305 $592,941 
The following table outlines the classification of depreciation expense in the consolidated statements of income for fiscal 2026, 2025, and 2024 (in thousands):
Year Ended
February 28, 2026February 28, 2025February 29, 2024
Cost of sales$65,349 $56,849 $53,035 
Selling, general and administrative1,624 2,245 2,428 
Total depreciation expense$66,973 $59,094 $55,463 

Historical Timeline

Fiscal YearFiled
2026Apr 22, 2026Showing above
2025Apr 21, 2025
2024Apr 22, 2024
2023Apr 25, 2023
2022Apr 22, 2022
2021Apr 23, 2021
2020Apr 29, 2020
2019May 17, 2019
2018May 15, 2018
2017Apr 20, 2017
2016Apr 21, 2016

About PP&E Disclosures

The PP&E disclosure details a company's physical asset base — land, buildings, machinery, and equipment — along with the depreciation methods and useful life assumptions that determine how these costs flow through the income statement. Capitalization policy thresholds reveal management's judgment on the boundary between expense and asset, directly affecting both reported earnings and asset values.

Key signals: changes in estimated useful lives or depreciation methods can materially shift reported earnings without any operational change. Compare capital expenditures against depreciation expense — when capex consistently trails depreciation, the asset base may be aging and underinvested. Watch for large asset impairments or write-downs that signal overvalued carrying amounts. Asset retirement obligations reveal future environmental or decommissioning costs that are often underappreciated. Compare PP&E intensity (PP&E-to-revenue) against industry peers to assess capital efficiency and competitive positioning.