Box Assembly Home / Box Assembly Step 1: Set the box with the QR Code bottom facing up. Step 2: Tuck in the 2 side flaps. Step 3: Fold in the bottom flap. Step 4: Drop the base piece and flip the box right-side up. Step 5: Lift all 3 pieces up. Step 6: Drop the base piece. Step 7: Secure the side flaps. Step 8: Fold in the side (top) flaps. Step 9: Make a bend on the middle piece that is the longest. Step 10: Fold down and interlock the 2 flaps with the bent middle piece tucked under.