Known floor building elevation, ceiling elevation, light steel keel gypsum board ceiling boom length how to calculate?
Depends on the height of the room and the spacing of the boom
You can put the big hanging, expansion screws and hanging bars connected, and then look to know the amount.
The bottom of the hanging bar will be connected with the main keel, and the main keel below the vice keel connection, above the expansion screw and the top of the building fixed, then it is necessary to enter the top of the building at least 4 cm, The length of the general - about 13 cm (this specification is different), the thickness of the vice keel can be ignored. If the top elevation to the distance between the top of the original building is 1 meter, then the length of the hanging bar is: 100-13 +4 = 91 cm, which will be about 3 cm or so in the ceiling inside, for sets Nut margin.
