Knots Knots cause fiber distortion creating the effects shown in the examples below: Cedar, Eastern Red (from [Source 27])- PZC = 10.5 A. Saman (from NEHOSOC)- PZC = 25.4 A. Crombiei (from [Source 53])- PZC = 7.5 S. Commixta (from NEHOSOC)- PZC = 7.9 Cypress, Bald (from NEHOSOC)- PZC = 7.5 S. Nigra (from [Source 53])- PZC = 9.8 Framire (from [Source 1])- PZC = 18.9 Giant Sequoia (from [Source 28])- PZC = 14.0 P. Totara (from NEHOSOC)- PZC = 17.7 Cedar, Australian Red (from Australian Premier Veneer)- PZC = 25.9 Walnut, Queensland (from [Source 27])- PZC = 17.0 Cypress, Lawson (from [Source 58])- PZC = 10.6 Tsuga Heterophylla (from [Source 58])- PZC = 12.3 Acacia Salicina (from [Source 58])- PZC = 19.3 Acacia Bidwillii (from [Source 58])- PZC = 20.5 Juniperus misc. (from NEHOSOC)- PZC = 13.3 Juniperus Procera (from NEHOSOC)- PZC = 14.5 Juniperus Sabina (from NEHOSOC)- PZC = 12.4 Ocotea Bullata (from NEHOSOC)- PZC = 29.2 Pine, Huon (from Australian Premier Veneer)- PZC = 16.2 Eleagnus Angustifolia (from [Source 58])- PZC = 14.2 Kotibe (from [Source 1])- PZC = 17.4