Arrange the sectional sofa in the design that you want. Once you connect the pieces, rearranging the pieces takes some time.
Turn each upside down so that you can see the bottom of each sectional piece. Set aside the screws from the sectional sofa connectors and take apart each piece. The connectors consist of two pieces: a locking mechanism and a latch for locking the pieces together.
Set two of the locking mechanism pieces on one of the sofa pieces, so that the ends sit flush with the edge of the couch. The pieces screw into the wood frame on the couch. The pieces have a U-shaped metal bracket that slides over a knob on the other side of the connector.
Place the opposite piece of the connector on the next sectional piece. Move the connector pieces close to the edge of the sofa, making sure that the pieces line up and work together.
Screw four screws into each of the connector pieces. Push the U-shaped piece over the knob, locking the pieces together. Repeat on each of the other sectional pieces, locking the couch together. Turn the couch back over so that the legs sit flat on the floor.