2001 ASD Supplements - unprotected PDF - American Wood Council

GL-12ALLOWABLE STRESS AND STIFFNESS3.5 Structural Glued Laminated Timber CombinationsMeeting Stress Class RequirementsExamples of the structural glued laminated timbercombinations from AITC 117 and APA Y117 that meetthe requirements of each stress class are listed below. Thespecies group used in the outer laminations/core laminationsfor each combination is also shown. Combinationsthat are not included in AITC 117 or APA Y117, but meetall requirements of a stress class, are permitted for use inthat stress class. Combinations not included in AITC 117or APA Y117 shall be developed in accordance with NER-466 or NER-486.Stress Class Western Species Southern PineUnbalanced Balanced Unbalanced Balanced16F-1.3E 16F-V1 (DF/SW) 16F-V6 (DF/DF) 16F-V2 (SP/SP) 16F-V5 (SP/SP)16F-V2 (HF/HF) 16F-V7 (HF/HF) 16F-V3 (SP/SP) 16F-E3 (SP/SP)16F-V3 (DF/DF)16F-E1 (SP/SP)16F-V4 (DF/SW)16F-E1 (SW/SW)16F-E2 (HF/HF)16F-E3 (DF/DF)20F-1.5E 20F-V3 (DF/DF) 20F-V7 (DF/DF) 20F-V2 (SP/SP) 20F-V5 (SP/SP)20F-V4 (DF/DF) 20F-V8 (DF/DF) 20F-E1 (SP/SP) 20F-E3 (SP/SP)20F-V10 (DF/HF) 20F-V9 (HF/HF) 22F-V1 (SP/SP) 22F-V5 (SP/SP)20F-V12 (AC/AC) 20F-V13 (AC/AC) 22F-V2 (SP/SP) 22F-E3 (SP/SP)20F-E2 (HF/HF) 20F-E6 (DF/DF) 22F-V3 (SP/SP)20F-E3 (DF/DF) 20F-E7 (HF/HF) 22F-V4 (SP/SP)20F-E8 (ES/ES) 22F-V8 (DF/DF) 22F-E1 (SP/SP)22F-V3 (DF/DF)22F-V10 (DF/DFS)24F-1.7E 24F-V5 (DF/HF) 24F-V10 (DF/HF) 24F-V1 (SP/SP) 24F-V5 (SP/SP)24F-V11 (DF/DFS) 24F-E10 (DF/HF) 24F-V4 (SP/SP)24F-E2 (HF/HF)24F-E11 (HF/HF)24F-E3 (DF/HF)24F-E15 (HF/HF)24F-1.8E 24F-V4 (DF/DF) 24F-V8 (DF/DF) 24F-V3 (SP/SP) 24F-E4 SP (SP/SP)24F-E1 (DF/DF) 24F-E13 (DF/DF) 24F-E1 (SP/SP) 24F-V5M1 (SP/SP)24F-E4 (DF/DF) 24F-E18 (DF/DF) 24F-E2 (SP/SP)26F-1.9E 26F-E/DF1 (DF/DF) 26F-E/DF1M1 (DF/DF) 26F-V1 (SP/SP) 26F-V4 (SP/SP)26F-V2 (SP/SP)26F-V3 (SP/SP)28F-2.1E 28F-E1 (SP/SP) 28F-E2 (SP/SP)28F-E1M1 (SP/SP) 28F-E2M1 (SP/SP)30F-2.1E 30F-E1 (SP/SP) 30F-E2 (SP/SP)APA – The Engineered Wood Association