HO wants to remove a 10′ section of a bearing wall carrying an upper floor and creating an opening from the kitchen to the diningroom by installing a microlam beam (2 – 1 3/4x 9 1/2″ members)
What would be the best (and safest) method to install the beam by myself? Supporting the upper floors on both sides of the bearing wall? Damage to floors and ceiling? Twisting the 2x4s flat and install one member of the beam, then removing the 2x4s and install the second member?