COLODAILY / CARDBOARD BOX

Build a Cardboard Box

Cut one cross-shaped blank, fold it into a cube, and glue the seven integral flaps.

  • 50 mm cubeNominal size
  • Solid paperboard 0.5 mmOne blank
  • A4 templates1 template on 1 sheet at actual size
  • White PVA glueSeven integral flaps
A closed cube-shaped cardboard box

Prepare materials and tools

  • Reused boxLook for clean, dry 0.5 mm solid paperboard.

    See usable box types

    Look for 0.5 mm solid paperboard. Lay the full-size template on a flat panel before cutting.

    • Coke or Pepsi multipackLook for a flat, solid edge. Use a large panel clear of handle holes.
    • Cereal boxTry the broad front or back panel. Measure away from the glued seam.
    • Cracker or snack boxCheck for a wide, uninterrupted panel. Small boxes may be too narrow for the full template.
    • Other folding cartonA dry goods or retail carton can work if the edge is solid and the thickness matches.
  • ScissorsOr use a craft knife and cutting mat.
  • Pencil, ruler & scorerUse a blunt scorer for folds and calipers to check board thickness.
  • A4 templatesPrint at 100% and check the 100 mm ruler before tracing.
  • Glue for the flapsWhite PVA glue or a low-temp hot glue gun. Test the bond on an offcut.

    Compare glue types

    Test on the same board, especially if the surface is glossy. With a glue gun, keep hands clear of the nozzle and melted glue.

    • White PVA glueThe default for this kit. Spread a thin coat on the flap, align the pieces, and hold them while the glue sets.
    • Low-temp hot glue gunDry-fit and test a very thin bead on a scrap. Use PVA if the bead keeps the closing flap from sitting flat.

Check the cut edge. Look for a thin, solid edge with no wavy layer. The whole blank needs a flat area of 170 × 210 mm. Check the board →

Choose your board and open the A4 templates ↓

Materials and A4 templates

Print at 100% / Actual size and check that the printed ruler measures 100 mm.

The final A4 page contains the stickers for all three ready-made looks.

Transfer the fold lines and face labels to the outside face. Test the crease and glue on a scrap of the printed board.

One cut piece

The six square faces and seven tapered flaps stay connected. Cut the outer line and lightly score the dashed lines. Use the A4 sheets to trace at actual size.

One-piece box net ×1
N
Part details

Technical drawings

Arrows show dimensions in millimeters. Coordinates in the tables start at the lower-left corner of the cut blank. Use the A4 templates for actual-size tracing.

One-piece box net · N

170 × 210 mm blank · 0.5 mm board

170 mm210 mm50 mm50 mm1222222222222

Solid brown · cutDashed purple · score and fold

  1. Cut around the solid outer outline.
  2. Score and fold along the dashed lines.
Exact coordinates and edge lengths

Measure from the lower-left corner of the blank. X runs right and Y runs up. The tables have their own row numbers. Join the outer edges in order.

Tabs, flaps and openings
MarkFeatureX, Y in mmDimensions in mm
1Glue flap35, 110 · Center of baseFold width 50 · Tip width 42 · Depth 10
2Glue flap135, 110 · Center of baseFold width 50 · Tip width 42 · Depth 10
3Glue flap35, 160 · Center of baseFold width 50 · Tip width 42 · Depth 10
4Glue flap135, 160 · Center of baseFold width 50 · Tip width 42 · Depth 10
5Glue flap10, 135 · Center of baseFold width 50 · Tip width 42 · Depth 10
6Glue flap160, 135 · Center of baseFold width 50 · Tip width 42 · Depth 10
7Glue flap85, 10 · Center of baseFold width 28 · Tip width 20 · Depth 10
Fold lines
LineInstructionFrom X, YTo X, Ymm
1fold60, 16060, 11050
2fold110, 110110, 16050
3fold60, 110110, 11050
4fold110, 16060, 16050
5fold60, 60110, 6050
6fold10, 11060, 11050
7fold110, 110160, 11050
8fold60, 16010, 16050
9fold160, 160110, 16050
10fold10, 16010, 11050
11fold160, 110160, 16050
12fold71, 1099, 1028
Outer cut edges
EdgeFrom X, YTo X, Ymm
1110, 60110, 11050
2110, 110114, 10010.77
3114, 100156, 10042
4156, 100160, 11010.77
5160, 110170, 11410.77
6170, 114170, 15642
7170, 156160, 16010.77
8160, 160156, 17010.77
9156, 170114, 17042
10114, 170110, 16010.77
11110, 160110, 21050
12110, 21060, 21050
1360, 21060, 16050
1460, 16056, 17010.77
1556, 17014, 17042
1614, 17010, 16010.77
1710, 1600, 15610.77
180, 1560, 11442
190, 11410, 11010.77
2010, 11014, 10010.77
2114, 10056, 10042
2256, 10060, 11010.77
2360, 11060, 6050
2460, 6060, 1050
2560, 1071, 1011
2671, 1075, 010.77
2775, 095, 020
2895, 099, 1010.77
2999, 10110, 1011
30110, 10110, 6050

Folded glue flap

1. Fold the flapFold the flap so it lies flat against the receiving piece.
2. Spread a thin layer of glueCoat the face of the flap that will touch the receiving piece.
3. Press the two faces togetherHold the pieces in place as directed on the glue label.

Open the illustrated joint guide →

Assembly sequence

Read through the steps here, or rotate the exploded model and follow the build in Studio.

1. Cut and pre-fold the blank

Cut the solid outer line. Lightly score all dashed lines, pre-fold the faces and flaps, then lay the blank flat again.

View in Studio →

2. Apply glue to four wall flaps

Lay the blank with its marked outside face up. Coat the two tapered flaps along the front and back edges of each side wall. The blue areas show where the glue goes.

View in Studio →

3. Fold and join the walls

Turn the blank over so the top rests on the work surface. Raise both side walls and fold their glued flaps inward. Raise the front and back walls over the flaps, then press the seams from inside the open box.

View in Studio →

4. Coat the two bottom support flaps

Once the wall seams hold, fold the remaining flap on each side wall inward. Spread glue on the exposed faces where the bottom will sit.

View in Studio →

5. Coat the bottom closing flap

Keep the bottom panel open. Fold the last tapered flap inward and coat the face that will touch the inside of the back wall.

View in Studio →

6. Close and seal the bottom

Swing the bottom panel over the two side flaps. Tuck its closing flap just inside the back wall. Press along the three seams and hold them in place while the glue sets.

View in Studio →

Printable prototype. Test the creases and glue on a scrap of your board before cutting the full blank.