Corner Cat Shelf

Dimensions

Cut list

Tools you'll need

• ✓

  Tape Measure (5m or longer)

  Used for measuring each part

• ✓

  Pencil and Carpenter's Square

  For marking lines and checking right angles

• ✓

  Saw

  Home center cutting service recommended

• ✓

  Electric Screwdriver

  Impact driver improves work efficiency

• ✓

  Sandpaper

  Prepare two types: #120 and #240 grit

• ✓

  Level

  Essential for checking levelness during assembly

• ✓

  Clamps (2 or more)

  Used for temporary fixing during joining

• ✓

  Brush and Paint Tray

  Used for oil or varnish finishing

• ✓

  Stud Finder

  Confirm position of wall studs and columns

Materials

Build steps

1. 1

   Confirm installation location and cat's movement path

   ≈ 15 min

   Decide the installation location of the Corner Cat Shelf (400×400×200mm). Ideally near a window or along a wall where cats can easily jump on. Choose a spot where the shelf can be fixed to the wall to prevent overturning.

   Measure

   W 400 mm

   MeasureSTEP 1 / 11

   Tip

   • Leave at least 300mm distance from the ceiling to prevent cats from pushing and climbing on it.
   • Installing near a window is preferred as a spot for sunbathing and outdoor viewing.
   • For households with multiple cats, set height at 200mm or more to provide escape routes.

   Watch out

   • Avoid placing directly under air conditioners; the direct wind is unpleasant for cats.
   • Avoid structures where cats cannot get down once they climb high. Base boards should be arranged stepwise.
2. 2

   Cutting and preparation of parts

   ≈ 25 min

   Cut one base board (15×400×400mm) from 15mm thick Lauan plywood. Prepare one pole wrapped with hemp rope φ90×200mm, one 2x4 lumber post (φ90×200mm), 1m of hemp rope φ8mm, 40 pieces of 50mm coarse-thread screws, and one piece of carpet (boa material) 400×400mm.

   Cut

   Use the in-store cut service

   CutSTEP 2 / 11

   Tip

   • 15mm Lauan plywood offers a good balance between strength and lightness; 12mm is insufficient to support weight.
   • Purchasing a pre-made hemp rope wrapped pole is faster; available at DIY stores.
   • Thin carpet is easier to attach; overly thick carpets do not hold cat claws well.

   Watch out

   • Using thin plywood risks cracking from impact when cats jump.
   • If the pole core is soft, stability is compromised; choose hardwood core even when wrapped with hemp rope.
3. 3

   Sanding all parts

   ≈ 25 min

   Sand Lauan plywood and 2x4 lumber in the order of #120 grit then #240 grit. No splinters allowed as cats lick and scratch surfaces. Especially round off edges carefully.

   Sand

   #120

   SandSTEP 3 / 11

   Tip

   • Make all surfaces cats touch smooth; check by stroking with fingertips.
   • Edges of plywood (ends) are rougher than the face; focus sanding there.
   • Perform sanding indoors or in ventilated areas to manage dust.

   Watch out

   • Even one splinter can injure a cat's tongue or paw pads.
   • Dust settling on carpet is hard to remove; separate sanding location from assembly.
4. 4

   Marking post positions on base boards

   ≈ 20 min

   Mark with pencil the positions to attach posts on all four base boards. On base board 1 (bottom), place two posts in a square layout. Boards 2 to 4 are placed at different heights (e.g. 300mm, 600mm, 900mm). Offset slightly from the center line to both sides to help cat gait.

   Mark a line

   Use a try square

   MarkSTEP 4 / 11

   Tip

   • Center of gravity offset causes easy tipping; 4 posts arranged in a square base is basic.
   • Stacked boards at different heights in a stepped manner ease cat climbing.
   • Using a punch to mark hole centers aids drilling.

   Watch out

   • Locating posts too close to board edges risks edge splitting during screw driving.
   • Misaligned post positions on boards cause overall distortion; transfer markings precisely using stacking.
5. 5

   Drilling pilot holes on base boards and posts

   ≈ 20 min

   Drill φ5mm pilot holes in the base boards and 2x4 lumber posts. Add countersinks on base boards for screw heads to sit flush. Use product-supplied metal brackets for fastening the hemp rope wrapped poles.

   Drill a hole

   φ5mm

   DrillSTEP 5 / 11

   Tip

   • Countersinking results in neat finish and prevents cats scratching on screw heads.
   • Use drill stoppers to control hole depth and avoid through holes.
   • Keep pilot holes in 2x4 lumber at least 20mm away from edges to avoid splitting.

   Watch out

   • Driving 50mm screws without pilot holes splits the 2x4 lumber.
   • Countersink too deep reduces strength, loosening screws.
6. 6

   Assembling bottom board and posts

   ≈ 30 min

   Stand two posts (hemp rope wrapped pole and 2x4 lumber) vertically on bottom board (450×450) and drive 3 screws each (total 6) from the bottom with 50mm coarse-thread screws. Confirm verticality using a square during the process. Use more screws on the bottom board as it supports the most weight.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 6 / 11

   Tip

   • Check verticality of posts from two directions (front and side) using a level aiming for zero deviation.
   • Applying wood glue to joint surfaces improves rigidity.
   • No need to be concerned about screw heads on bottom backside; increasing screw count is advised.

   Watch out

   • Any post tilt causes upper boards to be uneven and cats to feel unstable.
   • Insufficient screws cause posts to wobble with cat movement.
7. 7

   Attaching middle and upper boards

   ≈ 30 min

   Attach middle boards (at heights 300~900mm) horizontally to posts. Drill φ5mm pilot holes from backside of each board and drive 3 screws per post (2 posts × 3 screws = 6 screws per board). Use a level to confirm boards are horizontal. Ensure screw strength withstands impact when cats jump on.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 7 / 11

   Tip

   • Uneven boards cause cats discomfort.
   • Drive screws on post centerline; near edges risk splitting.
   • Reducing board size at higher levels to maintain center of gravity is an option.

   Watch out

   • Screw driving impact can affect lower board levelness; recheck all three levels after assembly.
   • Insufficient screws lead to fall accidents; consider cat weight (e.g. 10kg) plus dynamic load.
8. 8

   Wrapping hemp rope (scratch post function)

   ≈ 30 min

   If not using a pre-made hemp rope wrapped pole, tightly wrap 1m of φ8mm hemp rope around the 2x4 post from bottom to top and fix ends with staples or screws. Wrap tightly without gaps.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 8 / 11

   Tip

   • At start, drill holes in post to insert rope end, then secure with wood glue to prevent slipping.
   • Fix rope frequently with staples while wrapping to avoid loosening.
   • Hide wrapped end by inserting rope into the same hole for neat appearance.

   Watch out

   • Loose rope unravels if cats pull; wrap tightly and fix often.
   • Avoid synthetic fiber ropes; cats may chew and ingest them dangerously.
9. 9

   Attaching carpet (boa material)

   ≈ 25 min

   Attach carpet pieces to the top surfaces of the three boards (top, middle, and base) with double-sided tape or wood glue. Cut corners to fit board shape with a cutter. Attach strongly so the carpet won't peel under cat claws.

   Fix to the wall

   Anchor to studs

   InstallSTEP 9 / 11

   Tip

   • Use strong double-sided tape resistant to cat claw power.
   • Align carpet pile direction before attaching for better appearance.
   • Leave extra carpet edge to fold under the board for better adhesion.

   Watch out

   • Weak adhesion causes carpet peeling during cat play, risk of ingestion.
   • Avoid cheap carpets with latex backing that deteriorates to powder.
10. 10

    Fixing to wall to prevent tipping

    ≈ 20 min

    Secure the top of the tower to the wall using L-brackets and earthquake-resistant belts to prevent tipping. Attach firmly to wall studs confirmed by stud finder. This prevents fall during earthquakes or vigorous cat movement.

    Fix to the wall

    Anchor to studs

    InstallSTEP 10 / 11

    Tip

    • Wall fixing is essential for safety; a 1200mm tower can easily tip with jumping cats.
    • Earthquake belts are available at 100-yen shops; dedicated products (~1000 yen) offer more assurance.
    • Gypsum board alone is insufficient; fix firmly to wall studs.

    Watch out

    • Skipping wall fixing risks tower collapse during earthquakes, injuring cats.
    • Confirm bracket load capacity supports tower weight plus cat weight and earthquake forces.
11. 11

    Final checks and cat introduction

    ≈ 15 min

    Check all screws are tight, carpet adhesion, and any wobbling in posts. Place tower in installation spot, check levelness with a level. Add felt pads under feet to adjust wobble if needed. Test stability by shaking. Introduce cats gently.

    Done!

    Done — nice work!

    DoneSTEP 11 / 11

    Tip

    • Place cat treats on boards after completion to encourage cats to explore without fear.
    • Do not force cats onto the tower initially; let them explore naturally.
    • Placing nearby furniture as 'stairs' helps cats climb during first days.

    Watch out

    • Failure to check can cause injuries due to improper assembly.
    • If cats refuse to use it, location or scent incompatibility might be the cause. Observe patiently.

Warnings

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

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