| Ilim Timber Bratsk (Bratsk Saw and Wood Processing Mill)SawmillIlim Timber, Bratsk branch | Russia | Softwood | Operating | No data yet |
| Ilim Timber Ust-Ilimsk (Ust-Ilimsk Timber Processing Plant)SawmillIlim Timber, Ust-Ilimsk branch | Russia | Softwood | Operating | 600 000 m3/y sawn timber |
| InduforestSawmillInduforest S.L. | Spain | Softwood | Operating | No data yet |
| InnTre Kjeldstad (Steinkjer)SawmillInnTre Kjeldstad AS | Norway | Softwood | Operating | No data yet |
| InnTre Kjeldstad LevangerSawmillInnTre Kjeldstad AS | Norway | Softwood | Operating | No data yet |
| InnTre Kjeldstad SelbuSawmillInnTre Kjeldstad AS | Norway | Softwood | Operating | No data yet |
| InnTre Kjeldstad StørenSawmillInnTre Kjeldstad AS | Norway | Softwood | Operating | No data yet |
| InnTre Kjeldstad VerdalSawmillInnTre Kjeldstad AS | Norway | Softwood | Operating | No data yet |
| Interfor Adams LakeSawmillInterfor Corporation | Canada | Softwood | Operating | 593 000 m3/y sawn timber |
| Interfor BaxleySawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor Bay SpringsSawmillInterfor U.S. | United States | Softwood | Operating | 238 000 m3/y sawn timber |
| Interfor CastlegarSawmillInterfor Corporation | Canada | Softwood | Operating | 390 000 m3/y sawn timber |
| Interfor DeQuincySawmillInterfor U.S. | United States | Softwood | Operating | 340 000 m3/y sawn timber |
| Interfor Ear FallsSawmillInterfor Corporation | Canada | Softwood | Idled 2025 | 280 000 m3/y sawn timber |
| Interfor EatontonSawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor Elk LakeSawmillInterfor Corporation | Canada | Softwood | Operating | 255 000 m3/y sawn timber |
| Interfor FayetteSawmillInterfor U.S. | United States | Softwood | Operating | 272 000 m3/y sawn timber |
| Interfor GeorgetownSawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor GogamaSawmillInterfor Corporation | Canada | Softwood | Idled | 187 000 m3/y sawn timber |
| Interfor Grand ForksSawmillInterfor Corporation | Canada | Softwood | Operating | 285 000 m3/y sawn timber |
| Interfor LongviewSawmillInterfor US | United States | Softwood | Operating | No data yet |
| Interfor MolallaSawmillInterfor US | United States | Softwood | Operating | No data yet |
| Interfor MonticelloSawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor Nairn CentreSawmillInterfor Corporation | Canada | Softwood | Closed | 246 000 m3/y sawn timber |
| Interfor PerrySawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor PhilomathSawmillInterfor US | United States | Softwood | Converted | 374 000 m3/y sawn timber |
| Interfor Port AngelesSawmillInterfor US | United States | Softwood | Operating | No data yet |
| Interfor PrestonSawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor SwainsboroSawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor ThomastonSawmillInterfor U.S. | United States | Softwood | Operating | No data yet |
| Interfor TimminsSawmillInterfor Corporation | Canada | Softwood | Operating | 272 000 m3/y sawn timber |
| Interfor Val-d'OrSawmillChantiers Chibougamau Ltée | Canada | Softwood | Closed | 246 000 m3/y sawn timber |
| Irving Forest Products Ashland (Nashville Plantation)SawmillIrving Forest Products | United States | Softwood | Operating | 221 000 m3/y sawn timber |
| Irving Forest Products DixfieldSawmillIrving Forest Products | United States | Softwood | Operating | 170 000 m3/y sawn timber |
| Irving MasardisSawmillIrving Forest Products | United States | Softwood | Operating | 195 000 m3/y sawn timber |
| Isojoen SahaSawmillIsojoen Saha Oy | Finland | Softwood | Operating | 150 000 m3/y sawn timber |
| J.D. Irving ChipmanSawmillJ.D. Irving, Limited (Sawmills Division) | Canada | Softwood | Operating | No data yet |
| J.D. Irving DeersdaleSawmillJ.D. Irving, Limited (Sawmills Division) | Canada | Softwood | Closed 2011 | No data yet |
| J.D. Irving DoaktownSawmillJ.D. Irving, Limited (Sawmills Division) | Canada | Softwood | Operating | No data yet |
| J.D. Irving KedgwickSawmillJ.D. Irving, Limited (Sawmills Division) | Canada | Softwood | Operating | No data yet |
| J.D. Irving PohénégamookSawmillJ.D. Irving, Limited | Canada | - | Closed | 175 000 m3/y sawn timberestimated from 350 000 m3/y log intake |
| J.D. Irving St. LeonardSawmillJ.D. Irving, Limited (Sawmills Division) | Canada | Softwood | Operating | No data yet |
| J.D. Irving SussexSawmillJ.D. Irving, Limited (Sawmills Division) | Canada | Softwood | Operating | No data yet |
| J.H. Huscroft (Erickson/Creston)SawmillJ. H. Huscroft Ltd. | Canada | Softwood | Operating | 78 000 m3/y sawn timber |
| James Brown & SonSawmillJames Brown & Son | United Kingdom | - | Operating | No data yet |
| James Jones & Sons AboyneSawmillJames Jones & Sons Ltd | United Kingdom | - | Operating | No data yet |
| James Jones & Sons Annan (ex Kerr Timber Products)SawmillJames Jones and Sons Limited | United Kingdom | Softwood | Operating | No data yet |
| James Jones & Sons KirriemuirSawmillJames Jones and Sons Limited | United Kingdom | - | Operating | No data yet |
| James Jones & Sons LockerbieSawmillJames Jones & Sons Ltd | United Kingdom | Softwood | Operating | 240 000 m3/y sawn timber |
| James Jones & Sons MosstodlochSawmillJames Jones and Sons Limited | United Kingdom | Softwood | Operating | No data yet |