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Wood: Wood Spanning Systems

Instructor David Thaddeus, FAIA
Series Structural Systems
Published December 21, 2025
Read time 9 min read min
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Topics Structural Systems Structural Systems: Wood 1 way 2 way Aspect Ratio Box Beam Built up CLT Cross Laminated Timber Depth Dimensional Lumber DLT Dowel Laminated Timber Downland Gridshell Flitch Beam Floor Gangnail Glulam header I Joist Lamella Laminated Strand Lumber Laminated Veneer Lumber Load Bearing Wall long direction LSL LVL Metropol Parasol Microlam Microllam Nail Laminated Timber NLT OSB Parallel Strand Lumber Plywood Primary PSL Roof SCL Secondary Seville short direction Sistered Span Structural Composite Lumber Tertiary Tongue and Groove truss Truss Joist Width wood