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Fabrication Sheet · Living Room

Built-in Billy Bookcase Wall

Advanced12 hours€326 – €445

Identified base piece

IKEA Billy 80×202 (×3) + extensions

Art. 002.638.50 · €195–€263 · IKEA Portugal

Buy ↗
Workbench Mode · Maker ProSave

Materials & cuts

  • MDF 19 mm 2440×1220 × 2 sheetsBauhaus · Bulky€60–€85Buy ↗
  • Skirting boards and trims × 6 mBauhaus · Bulky€24–€32
  • Joint compound + tape × 1 packAmazon · Small€9–€13
  • Primer + satin paint × 2.5 LAmazon · Small€38–€52Buy ↗

  1. Side filler panels

    Qty 2
    Length
    2020mm
    Width
    300mm
    Thickness
    19mm

    MDF / particleboard · Edge: No edge banding

  2. Top cornice

    Qty 1
    Length
    2440mm
    Width
    120mm
    Thickness
    19mm

    MDF / particleboard · Edge: No edge banding

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Dimension check: all cuts fit IKEA Billy 80×202 (×3) + extensions.

Toolbox

  • ↺ Beginner swap: Order cuts to size at the store

Safety & PPE

Safety glassesDust mask (FFP2) — MDF dustHearing protection
  • Screw each bookcase to the wall — never leave them unsecured.
  • Confirm there are no cables or pipes before drilling.

Estimated budget

  • Base piece€195 – €263
  • Dimensioned lumber & sheet goods€84 – €117
  • Hardware & consumables€48 – €64
Total build cost€326 – €445

Most likely estimate€385.00

Step by step

Preparation

  1. 01Assemble the three Billy units with extensions and align on the wall.
  2. 02Locate studs and mark mounting points.

Cutting

  1. 03Cut side panels, cornice and plinth to fit the opening.

Assembly

  1. 04Join bookcases together and fix to the wall.
  2. 05Fit filler panels, plinth and cornice.

Finishing

  1. 06Fill joints and holes, sand, apply primer and two coats of paint.

Unlock the full cut list, printable guide and Workshop Mode for this project.