Figure 1.
Level of use of softwood processed into lumber (www.e-drewno.pl, GUS 2023)
Figure 2.
Price level of softwood processed into lumber (www.e-drewno.pl, GUS 2023)
Table 1.
Summary of averaged prices for pine pallet lumber (https://www.drewno.pl/, https://www.e-drewno.pl/stock/, Górna et al. 2023)
| Period | Price of pine lumber (PLN/m3) | ||||
|---|---|---|---|---|---|
| 2019 | 2020 | 2021 | 2022 | 2023 | |
| I quarter | 440 | 450 | 480 | 1100 | 1000.0 |
| II quarter | 440 | 450 | 600 | 1300 | 800 |
| III quarter | 440 | 450 | 850 | 1400 | 700 |
| IV quarter | 450 | 460 | 1100 | 1100 | 600 |
| Mean | 442.5 | 452.5 | 757.5 | 1225.0 | 775.0 |
Table 2.
Summary of averaged prices of pine by-products in 2019–2023 (https://www.drewno.pl/, https://www.e-drewno.pl/stock/, Górna et al. 2023)
| Year | The by-product ‘falls off’ (PLN/m3) | |||
|---|---|---|---|---|
| paper chips | lumber chips | pine bark | sawdust | |
| 2019 | 218 | 163 | 116 | 149 |
| 2020 | 192 | 140 | 117 | 135 |
| 2021 | 187 | 146 | 121 | 155 |
| 2022 | 330 | 329 | 238 | 370 |
| 2023 | 288 | 288 | 307 | 318 |
| Participation in the process (%) | 20–30 | 8 | 10–15 | |
Figure 3.
Technological efficiency of processing coniferous wood into semi-finished lumber in sawmills (own elaboration, Hruzik et al. 2000, 2005; Mydlarz and Wieruszewski 2022; Wieruszewski et al. 2020, 2023)
Figure 4.
Ep processing efficiency of selected grades for pallet lumber production (own elaboration)
Figure 5.
Total Epc efficiency including by-products in pallet lumber production (own elaboration)