Ключевые слова: abstract, architecture, backgrounds, barracks, beam, billet, birch, brown, buildings, cross sectional, enterprising, estonia, firewood, forest, forestry, fuel, fuel and power generation, group, hardwood, heap, household, isolation, log, lumber, macro, many, material, motivational, objects, pine, protection, recycling, resource, round, short, stacked, textured, timber, tree, white, wood, woodpile,