South basement temporary entrance outside form. The six wooden blocks , shown on  six & one half  by  4′ x 8′  3/4″   thick  plywood sheets . The wooden blocks have three quarter inch all- thread rods through the center of the blocks to the inside and outside  of the form  , with a  4 ” x  4 “washer  &  a   3/4 ” nut on each end . These wooden blocks and all-thread rods & washers and nuts  are tighten to help hold the form in place , so the plywood will not push out ,when the form is filled with concrete  .