The method of depreciation and estimated useful lives by asset type are as follows:
Land improvements and site improvementsDeclining balance10 %
Buildings and building improvementsStraight-line
15 - 30 years
Yard, automotive and office equipmentDeclining balance
20 - 30%
Computer software and equipmentStraight-line
3 - 5 years
Leasehold improvementsStraight-lineLesser of lease term and economic life
At December 31, 2025CostAccumulated
depreciation
Net book value
Land$749.4 $— $749.4 
Buildings and improvements618.1 (268.5)349.6 
Yard, automotive and office equipment418.8 (201.8)217.0 
Computer software and equipment117.9 (94.2)23.7 
Leasehold improvements209.5 (93.3)116.2 
Assets under development66.4 — 66.4 
Property, plant and equipment$2,180.1 $(657.8)$1,522.3 
At December 31, 2024CostAccumulated
depreciation
Net book value
Land$610.9 $— $610.9 
Buildings and improvements499.6 (243.0)256.6 
Yard, automotive and office equipment348.1 (157.7)190.4 
Computer software and equipment109.2 (83.0)26.2 
Leasehold improvements174.3 (66.4)107.9 
Assets under development83.4 — 83.4 
Property, plant and equipment$1,825.5 $(550.1)$1,275.4 

Historical Timeline

Fiscal YearFiled
2025Feb 25, 2026Showing above
2024Feb 26, 2025
2023Feb 28, 2024
2022Feb 21, 2023
2021Feb 17, 2022
2020Feb 18, 2021
2019Feb 27, 2020
2018Feb 28, 2019
2017Feb 26, 2018
2016Feb 21, 2017
2015Feb 25, 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.