Compression strength properties for two hardwood glulam materials

This technical note presents test results on the compressive strength of two hardwood glue-laminated (glulam) materials. Test materials were fabricated according to the criteria of the American Institute of Timber Construction (AITC) 1 19-85 for a Combination A glulam timber. Allowable compression parallel-to-grain design values are presented for both northern red oak and red maple glulam timbers constructed according to AITC 1 19 specifications for visually sorted lumber qualities. The compressive design strength for northern red oak was computed to equal 2,750 psi (19.0 MPa). A nearly identical compressive design limit value of 2,700 psi (18.7 MPa) was obtained for red maple. The results indicate that high quality compression members are possible from either species.

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