Kids Chair

Dimensions

Cut list

Tools you'll need

• ✓

  Measuring Tape (5m or longer)

  Used for measuring each component.

• ✓

  Pencil and Carpenter's Square

  For marking lines and checking right angles.

• ✓

  Saw

  Home center cutting service is recommended.

• ✓

  Electric Screwdriver

  Using an impact driver improves work efficiency.

• ✓

  Sandpaper

  Prepare #120 and #240 grit types.

• ✓

  Level

  Essential for checking horizontality during assembly.

• ✓

  Clamps (2 or more)

  Used for temporary fixation during joining.

• ✓

  Brush and Paint Tray

  Used for oil or varnish finishing.

Materials

Build steps

1. 1

   Measure and Confirm Usage Environment

   ≈ 15 min

   Measure the installation area for the kids chair (350×300×600mm). Confirm front and back space allowing sitting with the chair pulled out (chair depth + at least 400mm), and check the food serving route.

   Measure

   W 350 mm

   MeasureSTEP 1 / 12

   Tip

   • Standard dining space per person is approximately 600mm width by 400mm depth.
   • Table height 720mm assumes standard dining chair seat height (420mm) plus 300mm clearance.
   • Maintain at least 800mm distance from wall for chair pull-out.

   Watch out

   • Although 1200×700mm tabletop is standard for 4 seats, families with many large dishes may find it cramped.
   • Overlooking chair backrest thickness when measuring can result in impossible entry/exit arrangement.
2. 2

   Create Material Cut List and Order from Home Center

   ≈ 40 min

   Prepare two tabletop pieces (38×140×350mm) from 2x6 lumber, four legs (38×89×562mm) and four apron boards (long side 38×89×350mm ×2 and short side 38×89×350mm ×2) from 2x4 lumber. Prepare 60 coarse-thread screws 75mm. Home center paid cutting service is convenient.

   Cut

   Use the in-store cut service

   CutSTEP 2 / 12

   Tip

   • The actual size of 2x6 lumber is 38×140mm; the nominal size differs, so be careful.
   • Nine tabletop boards side by side equal 140×9=1260mm; including 3mm gaps between boards totals 1284mm.
   • The effective tabletop width is 9 boards ×140mm + 8 gaps ×3mm =1284mm, which exceeds 350mm; adjust board number or width accordingly.

   Watch out

   • Selecting warped or twisted 2x6 lumber causes uneven tabletop; visually inspect each piece when purchasing.
   • Leg length 682mm = chair height 600mm minus tabletop thickness 38mm; provide actual measurements when ordering to avoid errors.
3. 3

   Sand All Components

   ≈ 50 min

   Sand in order #120→#180→#240 grit sandpapers. Especially carefully sand the 2x6 lumber used for the tabletop—moisten and wipe the surface repeatedly to raise the grain, dry completely, then finish with #240 grit to reduce staining during meals.

   Sand

   #120 → #180 → #240

   SandSTEP 3 / 12

   Tip

   • No splinters are allowed since food contacts the surface; confirm by running finger pads over surfaces.
   • The wet-dry sanding process reduces raised grain after usage.
   • Using an orbital sander saves time; consider borrowing one if available.

   Watch out

   • Failing to chamfer corners may catch clothing or skin; especially watch child's face height.
   • Sanding produces a lot of dust; perform in ventilated areas such as balconies or garages.
4. 4

   Pre-assemble Legs and Apron Boards (Frame Assembly)

   ≈ 45 min

   Position the apron boards at 50mm down from the top end of the legs (4 pieces). Attach the apron boards on the outside of the legs, and drive two 75mm coarse-thread screws at each joint. A rectangular frame construction indicates success. Always check each corner's right angle using a carpenter's square.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 4 / 12

   Tip

   • Outer attachment of apron boards looks better but inner attachment provides stronger contact with tabletop.
   • Drill 5mm pilot holes in the apron boards before driving screws to avoid leg wood splitting.
   • Right angle at joints directly affects the tabletop fit after assembly.

   Watch out

   • Driving 75mm screws without pilot holes causes 2x4 lumber to split.
   • Not aligning leg orientation (knot direction, grain) results in inconsistent appearance.
5. 5

   Check Frame Squareness and Diagonals

   ≈ 15 min

   Place the assembled frame on a flat floor and check that all four legs contact the floor (check for wobble). Measure the lengths of both diagonal inner distances with a tape measure and verify the difference is within 2mm. If misaligned, loosen screws, clamp the frame correcting from diagonal direction, then retighten.

   Inspect

   No wobble ✓

   InspectSTEP 5 / 12

   Tip

   • Measurements are inaccurate on uneven floors; work on a level surface.
   • More than 5mm difference in diagonal measurement causes tabletop skew; always keep within 2mm.
   • Wobble often means one leg lifts off the floor; adjust until all legs contact.

   Watch out

   • Ignoring distortion before proceeding causes tabletop to lift or edges not to fit.
   • Accuracy of the carpenter's square is critical; cheap ones may be off by 0.5 degrees or more.
6. 6

   Assemble the Tabletop

   ≈ 40 min

   Arrange nine 2x6 timber tabletop boards on the workbench, aligning the grain direction. Insert 3mm thick chopsticks between boards to create breathing gaps. On the backside, attach two 2x4 lumber reinforcement battens with wood glue and 45mm coarse-thread screws to unify the tabletop.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 6 / 12

   Tip

   • Alternating the heartwood direction (growth ring orientation) between boards counteracts warping (prevents cracking).
   • Attach battens 200mm inside from the tabletop edge for aesthetics.
   • 45mm screws must not penetrate 38mm thick tabletop; verify length by measurement.

   Watch out

   • Boards tightly abutted with no gap swell and warp from moisture; always maintain a 3mm breathing gap.
   • Batens attached at an angle distort the whole tabletop; confirm right angles with a carpenter's square.
7. 7

   Attach Tabletop to Frame

   ≈ 30 min

   Place the tabletop atop the frame, checking front-back and left-right balance (approximately 30mm overhang on all sides). Drill 5mm pilot holes from apron boards into the tabletop underside, then drive 75mm coarse-thread screws. Secure with four screws from long aprons and two from short aprons, twelve screws total.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 7 / 12

   Tip

   • An overhang of 30-50mm prevents interference during dining motions.
   • Driving screws toward the inner side rather than at the center of apron boards reduces wood splitting.
   • Screw length must not exceed apron board thickness plus 20mm to avoid tabletop penetration.

   Watch out

   • Driving 75mm screws without pilot holes and countersink can cause screw heads to pop out from tabletop surface.
   • Excessive overhang (over 50mm) causes tabletop deflection; around 30mm is appropriate.
8. 8

   Pre-paint Surface Preparation

   ≈ 20 min

   Lightly re-sand the entire piece with #240 sandpaper before painting. Remove dust with a damp cloth. For indoor use, water-based urethane varnish, Watco Oil, or Briwax are suitable. For surfaces contacting food, use paints labeled compliant with the Food Sanitation Act for safety.

   Sand

   #240

   SandSTEP 8 / 12

   Tip

   • Water-based urethane varnish (matte or semi-gloss) offers strong water and heat resistance, ideal for dining furniture.
   • Watco Oil retains wood texture and yields a soft finish.
   • Always test paint on scrap wood first to check color.

   Watch out

   • Glue residue repels paint; sand off thoroughly with #240 paper.
   • Painting over dust results in rough surfaces; clean thoroughly.
9. 9

   First Coat of Paint

   ≈ 40 min

   Apply paint over the whole furniture with a brush in order: tabletop → apron boards → legs → undersides. Brush along the wood grain unidirectionally to avoid brush marks. For water-based varnish, dry approximately 3 hours; for Watco Oil, apply, let penetrate for 15-20 minutes, wipe off excess, then dry for 2 hours.

   Paint

   Watco oil / varnish

   PaintSTEP 9 / 12

   Tip

   • Thin coats and two applications of urethane varnish prevent bubbles and shrinkage.
   • Always wipe off excess Watco Oil; leftover oil causes sticky finish.
   • Place in low-dust environment during drying.

   Watch out

   • Applying varnish thickly causes drips and uneven drying.
   • Drying with direct heater blast dries surface only, leaving interior moist; allow natural drying.
10. 10

    Intermediate Sanding and Second Coat of Paint

    ≈ 40 min

    After the first coat is fully dry, lightly sand the surface with very fine #400 sandpaper (intermediate sanding). Remove dust, then apply the second coat thinner than the first. For three coats to build thicker paint films, perform an additional intermediate sanding.

    Paint

    Watco oil / varnish

    PaintSTEP 10 / 12

    Tip

    • #400 sanding should be very light, only smoothing raised fibers.
    • Two coats greatly improve water resistance and abrasion durability, essential for dining furniture.
    • Three coats provide a hard, glossy finish typical of professional tables.

    Watch out

    • Excessive sanding removes the first coat paint film.
    • Touching the surface before drying leaves fingerprints and dust; adhere to 24-hour drying time.
11. 11

    Wait for Complete Hardening of Paint Film

    ≈ 10 min

    After painting, avoid placing heavy objects for at least 72 hours to allow complete curing. Water-based urethane varnish reaches full hardness in one week. During this period, refrain from eating or working on the table and lightly cover it with a cloth to prevent dust adherence.

    Paint

    Watco oil / varnish

    PaintSTEP 11 / 12

    Tip

    • Curing time varies by paint type; follow can instructions strictly.
    • Confirm curing by pressing the surface with a fingernail without leaving dents.
    • Drying time varies with temperature—3-4 days in summer, more than a week in winter.

    Watch out

    • Placing hot pots before curing melts or marks the paint film.
    • Dropping dishes chips cured paint; be cautious until fully cured.
12. 12

    Attach Leg Pads and Final Checks

    ≈ 20 min

    Stick felt pads on the four leg bottoms to protect flooring. Move the table to its position and use a level to check horizontality. Adjust pad thickness if wobble exists. Place the chair and sit to confirm knees do not hit apron boards.

    Done!

    Done — nice work!

    DoneSTEP 12 / 12

    Tip

    • 10mm thick felt pads absorb floor irregularities.
    • Use felt pads for hard floors (e.g., wood floors), rubber pads for tatami mats.
    • Adjust wobble by using thinner pads on one leg if necessary.

    Watch out

    • Using the table without pads damages floors due to weight.
    • Incorrect chair height difference (270-300mm clearance) causes poor dining posture.

Warnings

• ⚠️Drill pilot holes before driving screws to prevent wood splitting.

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