The following instructions apply to our file box stock number ST171210-FILE. Slightly bend all panels and flaps on all scored lines before assembling the box. Step 1 Locate panel with red Burst Label. Turn this label side down. When assembled, this will be the bottom panel of box. Step 2 Fold and raise bottom B flaps upward as shown, raising the left and right C side panels. Step 3 Place bottom flaps B on bottom panel (B) raising C side panels. Fold left and right side flaps A over front panel (A). Step 4 Lift front (A) panel into place, placing left and right side A flaps over the left and right side C flaps. Step 5 Fold left and right side D flaps down inside box to finish sides of box, locking bottom tabs into slots on bottom panel. Step 6 Fold in lid side G tabs as shown. Fold box top lip (F) over the G tabs, locking the top lip tabs into slots on top panel. Step 7 Fold down hinged top lid into position and you’re finished. Get more information or buy file boxes.