Installation adjustment and usage method of GRG material board. Based on the original structural construction drawings and communication with the civil engineering party, measuring tools such as total station, steel ruler, and plumb bob will be used to measure the vertical and horizontal axis lines to the parts of the building that require the installation of GRG panels, such as ceilings, walls, platform entrances, and partitions. The axis should be measured and set in a grid shape. If the original axis numbering is insufficient, virtual auxiliary axes can be added appropriately. The grid should be controlled at around 3m x 3m (with the curved axis measured in an arc shape). The completed axis line is marked with ink lines and the axis number is prominently displayed. For areas that cannot be marked, the axis control points can be extended or borrowed and marked. The focus of axis measurement should be on characteristic parts such as starting line, ending line, central axis, turning line, opening line, and edge line, which serve as control lines for future installation.

According to the established axis, accurately measure the detailed dimensions of each structural part with a small ruler. Three people work together to measure back and forth, with one person reading the back ruler, one person reading the front ruler, and one person recording. During the backtesting, the tape reader should switch back and forth to avoid accidental errors, and the size should be accurate to mm.

Use a level to measure the elevation of each characteristic part and mark it on the plane (or elevation), with dimensions accurate to mm.