Question: 1. A nominal 2 X 10-in. (50 X 250-mm) floor joist has the end notched on the bottom to a depth of 3 in. (76.2 mm). The notch is beveled over a distance of 6 in. (152 mm). If the allowable shear stress of the joist is 185 psi (1275 kPa), what is the maximum safe vertical reaction at the end of the joist?
2. What is FRTW wood? What advantages does it have over conventional lumber?