Modulus of Rupture (MOR) Strength Ratings for Various Species of Wood (psi)

The modulus of rupture reflects the maximum loadcarrying capacity of the species in bending strength and is proportional to the maximum strength or breaking point as borne by the specimen. ⁽¹⁾

• Tatajuba 32,270 psi
• Kurupayra 29,290 psi
• Massaranduba 29,200 psi
• Para Rosewood 27,600 psi
• Santos Mahogany 25,400 psi
• Ipe 25,400 psi
• Lapacho 25,360 psi
• Moabi / Guajara 25,300 psi
• Sucupira 25,100 psi
• Cumaru 24,800 psi
• Patagonian Rosewood 23,780 psi
• Bubinga 22,600 psi
• Purpleheart 21,300 psi
• Timborana 21,220 psi
• TigerWood 20,120 psi
• Brazilian Cherry 19,400 psi
• Tarara 18,000 psi
• Morado 17,700 psi
• Kempas 17,694 psi
• Acacia 17,500 psi
• Bacana / Copaiba 16,770 psi
• Tiete Rosewood 15,830 psi
• Birch 15,600 psi
• Birch Peshtigo River 15,570 psi
• Yellow Birch 15,570 psi
• White Oak 15,200 psi
• Ash 15,000 psi
• Walnut 14,700 psi
• Red Oak 14,300 psi
• Padauk 13,900 psi
• Amendoim 13,800 psi
• Hickory 13,700 psi
• Douglas Fir 12,400 psi
• Cherry 12,330 psi
• Laminate 12,000 psi
• Royal Mahogany 11,100 psi
• Maple 10,700 psi
• Palo Blanco / Exotic Hickory 9,530 psi
• Peruvian Walnut 9,100 psi
• Sapele 8,500 psi
• Western Red Cedar 7,500 psi
• Bamboo 0 psi

(1) The Wood Handbook - Wood as an engineering material, USDA, General Technical Report 113.