When the box bottom has dried, fold and trim the remaining tab section the same way as you did in step three. This time, use the bottom of the box to act as a guide for the top section (it is easiest if you set this section up tightly inside the bottom you have just completed, with the tabs facing where the top will be.
Glue the side strip together inside the completed bottom of the box, folding all the tabs down. Apply a thin layer of glue to the tabs, and carefully center the box top over the base, pressing it in place on the glued tabs. Turn the complete box over and press it to secure the side tabs to the box top. Leave to dry. Remove the box lid from inside the base.
Depending on your box making technique, you may want to remove the box top from the base before your glue dries. If this works for you, press the tabs securely down against the top once you have removed it from the base and set it aside to dry.
