Light steel keel gypsum board ceiling length is greater than the number of need to stay expansion joints
No matter how long to stay extension joints
Light steel keel gypsum board ceiling area is greater than 100 square meters, the vertical and horizontal direction of about 12-18 meters to stretch each.
Light steel keel ceiling is generally divided into upper and no human type two. Master type for the 60 series of the main keel, not on the human type for the 50 series of the main keel. If there is no special requirements generally the main keel is 60 wide, the vice keel is 50 wide. According to the standard installation requirements of the spacing is not greater than 1200 * 1200, the first screw from the wall is not greater than 300.
