Overall loads on a structure typically are established in model-scale in a wind tunnel. Most of these model scale studies focus on high-rise structures. Overall loads on a low-rise building have been measured on the full-scale test structure in the natural wind environment at Texas Tech University's Wind Engineering Research Field Laboratory (WERFL). This facility consists of a 49 m (160 ft) high meteorological tower instrumented at six heights to measure wind flow characteristics, a rotatable 9.1 × 13.7 × 4.0 m (30 × 45 × 13 ft) high test building, and a data acquisition system housed in a 3.0 × 3.0 × 2.4 m (10 × 10 × 8 ft) data acquisition room. The fundamental features of the field site are described in Levitan and Mehta (1992a, 1992b). To measure the overall loads a triaxial load cell was installed at each corner of the building. These four load cells supported the entire weight of the building and measured two orthogonal horizontal shear forces and one vertical force. The triaxial load cells were custom designed for this experiment under a cooperative agreement with ISI in Round Rock, Texas. Each load cell was positioned under a wide flange section that was welded to the existing undercarriage adjacent each corner of the building. The top and bottom bearing surfaces consisted of machined plates (one embedded in the concrete foundation and one attached to the steel wide flange) to insure that the building was level during the experiments. The wheels of the building's rotation system were disengaged from the foundation to insure that the load cells measure all the wind-induced shear and vertical loads.