Wall-Mounted Folding Desk

Dimensions

Cut list

Tools you'll need

• ✓

  Tape Measure (5m or longer)

  Used for measuring all components.

• ✓

  Pencil and Carpenter's Square

  For marking lines and confirming right angles.

• ✓

  Saw

  Home center cutting service is recommended.

• ✓

  Electric Driver

  Impact driver improves work efficiency.

• ✓

  Sandpaper

  Prepare #120 and #240 grades.

• ✓

  Level

  Essential for checking horizontal alignment during assembly.

• ✓

  Clamps (2 or more)

  Used for temporary fixing during joining.

• ✓

  Brush and Paint Tray

  Used for oil or varnish finishing.

Materials

Build steps

1. 1

   Measuring and Confirming Installation Location

   ≈ 15 min

   Measure the intended spot for the TV stand and verify that the foldable wall-mounted desk (800×500×720mm) fits. Check the location of outlets, cable routing, and the shape of the TV stand base.

   Measure

   W 800 mm

   MeasureSTEP 1 / 17

   Tip

   • Ideal clearance is TV stand width plus 100mm on each side. If wall-mounted, consider reinforcing the top board center.
   • Select a location allowing at least 50mm of space from the wall to ensure proper front-to-back ventilation.
   • If the floor is carpeted, anticipate the legs sinking and wobbling by measuring with a hard board placed underneath.

   Watch out

   • If the TV stand depth of 500mm is less than the TV stand base size, the front may protrude dangerously. Always measure the TV box bottom prior to purchase.
   • If housing an AV amplifier or soundbar, confirm device sizes fit inside the shelf interior dimensions (W1164×D390×H328mm).
2. 2

   Cutting List Preparation and Home Center Ordering

   ≈ 30 min

   From 18mm Lauan plywood 1×6-foot boards, cut top and bottom boards (18×400×1200)×2, side boards (18×400×364)×2, and one shelf board (18×390×1164). The back panel is 4mm plywood (1200×400)×1. As plywood sheets are heavy and large, use the home center's cutting service is recommended.

   Cut

   Use the in-store cut service

   CutSTEP 2 / 17

   Tip

   • Cutting service costs about 30-50 yen per cut, achieving accuracy within ±1mm.
   • Grain direction should be horizontal as viewed from the front for aesthetic appeal, specify this when ordering.
   • The side board length of 364mm includes thickness of top and bottom boards (18mm×2) already considered; order exactly as is.

   Watch out

   • If plywood thickness differs from 18mm (e.g., 12mm/15mm/21mm), side board length calculations must be adjusted. Confirm actual thickness before ordering.
   • Cutting service only does straight cuts; holes for wiring or beveled edges must be done manually.
3. 3

   Applying Edge Banding Tape

   ≈ 25 min

   The plywood cut edges (end grain) are rough and unlike the finished faces, so apply edge-banding tape with an iron. Treat visible edges only - all front, rear, left and right edges of top and bottom boards, front edges of side boards and shelf board. Set iron to medium heat (around 150℃) and press for 3-5 seconds.

   Cut

   Use the in-store cut service

   CutSTEP 3 / 17

   Tip

   • Edge tape works by heat melting resin to adhere. Press with a cloth while warm to improve adhesion.
   • Trim any excess tape cautiously with a cutter at a slight bevel, cutting in 2-3 passes rather than all at once.
   • Back panel edges (4mm plywood) are not visible and do not require banding.

   Watch out

   • Keep the iron stationary for 3 seconds per spot; moving continuously won't heat sufficiently.
   • Too high temperature will burn the tape, discoloring it. Test iron temperature on scrap tape first.
4. 4

   Sanding All Components

   ≈ 30 min

   Sand all parts sequentially with #180 then #240 sandpaper. Plywood surfaces are already smooth, so light passes are sufficient. Use #240 sandpaper to lightly bevel edges for smoothness and safety. Also gently finish edge band tape edges with #240 sandpaper.

   Sand

   #180

   SandSTEP 4 / 17

   Tip

   • Sand along the wood grain; sanding against the grain raises fibers and causes finish unevenness later.
   • For edge beveling, aim for a smooth touch that doesn’t catch even on tissue paper.
   • Use a vacuum nozzle near the sander to reduce dust significantly, facilitating indoor work.

   Watch out

   • The plywood surface veneer is thin (0.2-0.5mm); heavy sanding exposes underlying gray layers. Only lightly sand.
   • Sanding produces a lot of dust; perform outdoors or in well-ventilated areas like balconies or garages.
5. 5

   Marking Shelf Board Position on Side Boards

   ≈ 20 min

   Mark the shelf board position on both side boards. Draw a horizontal line 200mm up from the bottom edge, which represents the shelf board top surface height. Match measurements symmetrically on both side boards using a carpenter's square and pencil. Mark pilot hole position along the 9mm (half of 18mm side board thickness) center line.

   Mark a line

   Use a try square

   MarkSTEP 5 / 17

   Tip

   • Stack two side boards and mark one, then transfer marks to the other using a center punch to ensure exact alignment.
   • Shelf position can be adjusted to equipment height; use AV amplifier height plus 50mm as a guideline.
   • Pilot holes should be centered (9mm from edge) to prevent misalignment.

   Watch out

   • If heights do not match between left and right side boards, the shelf will be tilted; don't forget to transfer marks by stacking.
   • Pencil marks may remain visible after painting; draw lightly and plan to erase after assembly.
6. 6

   Drilling Pilot Holes in Shelf Board and Side Boards

   ≈ 25 min

   Drill pilot holes (φ3.5mm) on both ends of the shelf board for side board fixing: two holes each side, total of four holes. From the side board's marked position, drill through with a φ3.5mm bit and countersink to φ8mm at 3mm depth on the front. Though plywood resists splitting, pilot holes near edges require careful clamping.

   Drill a hole

   φ3.5mm

   DrillSTEP 6 / 17

   Tip

   • Countersinking flush with screw heads creates a neat finish.
   • Use a drill stopper to limit depth and prevent through-drilling; set approximately 2mm less than board thickness.
   • Clamp shelving board firmly before drilling end pilot holes to avoid splitting.

   Watch out

   • Driving screws closer than 10mm to the edge risks splitting; keep pilot holes at edge center line (9mm).
   • Drill perpendicular; angled holes will cause screws to protrude on the opposite side.
7. 7

   Temporary Assembly of Bottom and Side Boards

   ≈ 30 min

   Place bottom board on the floor and stand two side boards upright on top. Align side board lower edges with bottom board edges. Apply a thin layer of wood glue and drill φ3.5mm pilot holes from the bottom board side, then drive three coarse-thread 38mm screws each side (total six). Confirm right angles between side and bottom boards using a carpenter's square as you work.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 7 / 17

   Tip

   • Apply glue sparingly, roughly the thickness of a toothpick, in a thin layer. Wipe any excess immediately with a damp cloth.
   • Clamp side boards temporarily before drilling to prevent movement.
   • Ensure the floor is flat; check bottom board level with a level before assembly.

   Watch out

   • Using too much glue causes overflow, preventing proper paint adhesion; thin, even glue application is crucial.
   • Omitting pilot holes causes plywood splitting. Always pre-drill.
8. 8

   Installing the Shelf Board

   ≈ 20 min

   Insert shelf board (1164mm length) into marked position. Align shelf ends flush with side boards. Apply glue, drill φ3.5mm pilot holes from outside the side boards, and drive two coarse-thread 38mm screws per side (four total). Confirm shelf is level with a level.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 8 / 17

   Tip

   • Shelf length 1164mm equals top board width 800mm minus twice side board thickness (18mm×2); verify measurements before proceeding.
   • Shelves are hidden internally; countersinking screw holes is unnecessary.
   • If using adjustable shelf pins, drill multiple φ5mm holes before this step.

   Watch out

   • Shelf too short causes wobbling; too long bows the side boards outward. Double-check cut lengths.
   • Uneven shelf causes items like remotes to roll off; verify level carefully.
9. 9

   Attaching the Top Board

   ≈ 25 min

   Place top board (1200mm width) on top of the frame, aligning with the side board upper edges. Drill φ3.5mm pilot holes from the top and drive three coarse-thread 38mm screws per side (six total). Countersink screw heads and hide with wooden dowels or wood filler for a cleaner finish.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 9 / 17

   Tip

   • Top board supports the TV; increasing screws to four per side (eight total) improves load capacity.
   • Fill countersunk holes with φ9mm wooden dowels for invisible joints; it becomes unnoticeable after painting.
   • For very heavy TVs (over 30kg), reinforce top board center from underneath with 1×2 lumber.

   Watch out

   • Attaching top board reversed causes grain to be misaligned; align wood grain prior to securing.
   • 38mm screws suit 18mm thick top board perfectly; longer screws risk penetrating to the shelf below.
10. 10

    Right Angle and Diagonal Measurement Check

    ≈ 15 min

    Check the overall right angles of the assembly. Place the carpenter's square at each of the four internal corners to confirm 90 degrees. Measure both diagonal lengths (internal dimension) with a tape and confirm they are equal within 2mm tolerance. If misaligned, loosen screws, use clamps to rectify, then retighten.

    Inspect

    No wobble ✓

    InspectSTEP 10 / 17

    Tip

    • More than 5mm diagonal difference indicates significant deformation and prevents proper back panel fitting; correction is mandatory.
    • Clamp the entire box diagonally to achieve accurate right angles.
    • Enlarging pilot holes to φ4mm creates room for adjustment.

    Watch out

    • Ignoring distortion at this stage causes large gaps when installing back panel.
    • Use reliable metal or aluminum carpenter's squares; plastic ones have large errors.
11. 11

    Attaching the Back Panel

    ≈ 15 min

    Position 4mm plywood back panel (800×720mm) on the back side and fix with a stapler or fine screws (φ3×20mm) around all edges and center. Space staples about 30mm apart; screws about 100mm apart. This step nearly eliminates box distortion by fixing right angles.

    Build the frame

    Check for square

    AssembleSTEP 11 / 17

    Tip

    • If distortion was found in the diagonal check, clamp and correct before fixing back panel.
    • Stapler insertion is faster; it uses fine, staple-like pins.
    • Orient wood grain horizontally on back panel to visually slim down the TV stand.

    Watch out

    • Avoid reversing back panel; front and rear differ in color and grain.
    • Check back side after stapling for pins protruding through accidentally.
12. 12

    Cutting Cable Pass-Through Hole (If Needed)

    ≈ 15 min

    Using a 50mm hole saw, cut a cable pass-through hole in the back panel for TV power, HDMI, and antenna cables. The ideal hole position is directly behind the TV’s connector area. If hole saw is not available, drill multiple holes and connect with a coping saw.

    Drill a hole

    下穴 φ3.5mm

    DrillSTEP 12 / 17

    Tip

    • Apply edge banding tape on hole edges to prevent cable damage and finger injury.
    • Confirm TV connector layout before marking hole to ensure straight cable routing.
    • Align hole height with outlet height for a neat appearance.

    Watch out

    • Incorrect hole placement prevents cables from exiting behind TV, causing unsightly arrangements; mock up TV placement for marking.
    • Hole saw slipping causes plywood face veneer to delaminate; ensure drill center bit engages securely.
13. 13

    Painting Surface Preparation

    ≈ 15 min

    Before painting, lightly sand entire assembly with #240 sandpaper. Wipe thoroughly with a damp cloth then dry to remove all dust. Remove any glue overflow and burrs around screw holes. Suitable indoor finishes include Watco Oil, Briwax, or water-based paints.

    Sand

    #240

    SandSTEP 13 / 17

    Tip

    • Test paint on scrap first as plywood absorbs differently than solid wood, affecting color intensity.
    • Water-based paints are beginner-friendly with water-based brush cleaning.
    • Watco Oil gives natural wood texture finish applied by rubbing with cloth.

    Watch out

    • Glue on surfaces repels paint; always lightly sand glue spots before coating.
    • Any remaining dust causes rough paint surface; clean thoroughly before painting.
14. 14

    First Coat of Paint

    ≈ 30 min

    Apply paint evenly with brush or cloth over all surfaces: top board, side boards, bottom board, then back panel, painting along wood grain in one direction to reduce brush marks. Apply thin coats without thick buildup. Allow natural drying for at least two hours.

    Paint

    Watco oil / varnish

    PaintSTEP 14 / 17

    Tip

    • Use portions of paint and keep can closed to prevent skinning of paint.
    • If brush strokes are visible, switch to a foam roller for uniform application.
    • Place drying assembly in dust-free area, avoid fans or direct heating.

    Watch out

    • Thick paint causes uneven drying and future peeling; two thin coats are essential.
    • Direct warm airflow causes surface drying too fast leaving uncured areas inside; allow natural drying only.
15. 15

    Intermediate Sanding and Second Coat

    ≈ 25 min

    After the first coat fully dries, lightly sand the surface with #320 sandpaper to smooth out roughness; remove dust completely. Apply a thinner second coat than the first for a streak-free finish. Let dry at least 24 hours.

    Paint

    Watco oil / varnish

    PaintSTEP 15 / 17

    Tip

    • Intermediate sanding only removes surface roughness without stripping first coat.
    • Second coat must be thin to avoid drips and unevenness.
    • Avoid touching the surface until fully dry to prevent fingerprints and dust adhesion.

    Watch out

    • Over-sanding during intermediate sanding removes first coat; keep it light with #320.
    • Thick second coats delay drying and prevent next day work.
16. 16

    Attaching Leg Pads and Anti-Tip Hardware

    ≈ 20 min

    Attach felt pads to leg bottoms to prevent floor damage and wobbling. For earthquake safety, fix anti-tip brackets or seismic belts at the upper back of the stand. Fixing to the wall with screws at stud locations is safest to prevent TV stand tipping.

    Fix to the wall

    Anchor to studs

    InstallSTEP 16 / 17

    Tip

    • Felt pads cost about 50 yen and 10mm thick absorb uneven flooring.
    • Anti-tip straps are available at 100 yen shops; dedicated stands costing around 1000 yen offer more reliability.
    • Fix against wall aligning with wall studs since drywall alone cannot support screws.

    Watch out

    • Skipping felt pads leads to floor scratches and damage.
    • Omitting anti-tip devices risks TV stand collapse during strong earthquakes, damaging the TV.
17. 17

    Final Check and Installation

    ≈ 20 min

    Move the finished TV stand to its position and check front-to-back and left-to-right levels with a level. Adjust wobble with felt pads as needed. Place the TV, route cables, connect power and verify operation. For the first day, place only light items and monitor for one week until paint cures fully.

    Done!

    Done — nice work!

    DoneSTEP 17 / 17

    Tip

    • Place the TV centrally to distribute the weight evenly on the top board; placing off-center causes distortion.
    • Route cables through back panel hole and organize with cable ties for neatness.
    • If placing AV amps or Blu-ray recorders on shelf, maintain 50mm front and rear clearance for ventilation.

    Watch out

    • Paint curing requires one week; placing remote controls or devices directly on the surface before curing causes stickiness.
    • Uneven floors in home prevent level setup; adjust pad thickness on each leg accordingly.

Warnings

• ⚠️Drill pilot holes before driving screws to prevent wood splitting.
• ⚠️When fixing to the wall, always locate the studs (fixing to drywall alone is not allowed).

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