Working Stresses of Philippine Woods at 50% Stress Grade

The accuracy of this page is not guaranteed. This post is for educational purposes only. Please refer to the National Structural Code of the Philippines (NSCP) for reliable data.

Working Stresses for Visually Stress-Graded Unseasoned Structural Timber of Philippine Woods

Species 50% Stress Grade
Bending & Tension Parallel to Grain Modulus of Elasticity in Bending Compression Parallel to grain Cpmpression Perpendicular to Grain Shear parallel to Grain
MPa GPa MPa MPa MPa
I. High Strength Group
Agoho 16.40 5.14 9.06 3.69 1.84
Liusin 15.60 5.85 9.76 2.69 1.65
Malabayabas 17.90 5.19 9.90 5.44 1.89
Manggachapui 16.10 6.02 10.0 3.77 1.74
Molave 15.00 4.09 9.60 3.96 1.80
Narig 13.60 5.20 8.59 3.11 1.63
Sasalit 19.60 6.08 13.5 6.40 2.12
Yakal 15.30 3.11 9.55 3.92 1.55
II. Moderately High Strength Group
Antipolo 11.60 3.34 6.77 2.44 1.29
Binggas 11.80 4.11 7.13 2.04 1.40
Bokbok 11.30 3.97 7.06 2.13 1.36
Dao 10.10 3.39 5.90 1.42 1.20
Gatasan 13.00 4.27 8.42 2.20 1.47
Guijo 13.60 5.30 8.22 2.66 1.50
Kamagong 13.10 4.50 7.31 2.74 1.54
Kamatog 11.90 4.72 6.98 2.47 1.47
Katmon 11.70 4.26 7.44 3.03 1.43
Kato 11.50 5.02 6.62 2.17 1.23
Lomarau 12.40 4.95 7.38 2.86 1.36
Mahogany, Big-leafed 10.30 2.91 6.54 2.39 1.69
Makaasim 12.80 4.20 7.10 2.31 1.50
Malakauayan 11.80 4.16 6.98 1.45 1.34
Narra 11.20 3.71 7.12 1.92 1.20
Pahutan 10.40 4.08 6.25 1.56 1.28
III. Medium Strength Group
Apitong 10.30 4.57 5.97 1.37 1.08
Bagtikan 10.40 4.05 6.18 1.46 1.14
Dangkalan 10.20 3.99 5.75 1.55 1.24
Gisau 8.93 3.33 5.10 1.24 1.18
Lanutan-bagyo 9.39 3.79 5.60 1.26 1.15
Lauan 8.68 3.64 5.11 1.07 0.93
Malaanonang 8.63 3.38 5.34 1.23 0.99
Malasaging 10.50 3.71 5.95 1.83 1.16
Malugai 9.62 3.94 5.83 1.92 1.30
Miau 9.80 4.06 5.52 1.74 1.29
Nato 10.1 3.48 5.73 1.46 1.24
Palosapis 8.65 3.73 5.24 1.70 1.05
Pine 9.19 4.16 5.18 1.18 0.98
Salakin 9.83 3.54 5.52 1.84 1.18
Vidal lanutan 12.2 3.64 5.34 1.66 1.50
IV. Moderately Low Strength Group
Almaciga 7.35 3.42 3.92 0.90 0.92
Bayok 7.89 2.97 4.58 0.81 0.75
Lingo-lingo 8.27 2.58 4.28 1.25 1.04
Mangasinoro 7.98 3.35 4.66 1.23 0.90
Raintree 7.43 1.72 4.52 2.07 1.30
Yemane 7.86 2.55 4.92 2.13 1.23