2. When making the ceiling, the joinery board should be processed into a slender rectangle and firmly connected with the wooden keel of the ceiling. Gypsum board and decorative latex paint are applied externally. This method is suitable for embedded and protruding curtain boxes;
3. If you have decorated the ceiling and then thought of the curtain box, then:
Unless you determine that there is a wood square or joinery board above the gypsum board according to the position of the steel curtain, you can nail the wood square and joinery board of the steel curtain box directly below the gypsum board, which is more convenient to solve;
(2) If the master is not sure whether it is a wood square or a joinery board, don't hesitate. To be strong, just "tear it down" and start over:
A, thinking and measuring the position of the curtain box;
B, draw the position size with a carpenter's pencil;
C, using a cutting machine to make holes, be careful not to tear down the main bearing wooden keel;
D, using blockboard to make the shape of curtain box.