This paper presents tabulated compressive strengths of double-tee members, which are comprised of two WT members oriented with
their flanges back to back (referred to as “2WTs” or “double WTs” hereafter). The benefits and typical use of these members are described,
including schematic details of connection designs. All WT members built from the WT7 and WT6 series are included in the table, which gives
available strengths in both ASD and LRFD. Slenderness effects and the effects of shear deformations of intermediate connectors are taken
into account.