Tension-Mounted Cat Tower

Dimensions

Cut list

Tools you'll need

• ✓

  Tape measure (5m or longer)

  Used for measuring each component

• ✓

  Pencil and carpenter’s square

  For marking and right angle confirmation

• ✓

  Saw

  Home center cutting service recommended

• ✓

  Electric screwdriver

  Impact driver improves work efficiency

• ✓

  Sandpaper

  Prepare #120 and #240 grades

• ✓

  Level

  Essential for checking horizontality during assembly

• ✓

  Clamps (2 or more)

  Used for temporary fixing during joining

• ✓

  Brush and paint tray

  Used for oil and varnish finishing

• ✓

  Stud finder

  To confirm wall stud positions

Materials

Build steps

1. 1

   Confirm Installation Location and Cat Traffic Flow

   ≈ 15 min

   Decide the installation location of the tension-mounted cat tower (400×400×2200mm). Ideal locations are near windows or along walls where cats can easily jump up. Choose a place where it can be fixed to a wall to prevent tipping.

   Measure

   W 400 mm

   MeasureSTEP 1 / 11

   Tip

   • Leave a 300mm gap from the ceiling so the cat does not push up and climb onto it.
   • Installing near a window is preferred for sunbathing and watching outside.
   • If you have multiple cats, consider a height over 2200mm to provide escape routes.

   Watch out

   • Avoid placing directly under air conditioners; cats dislike direct airflow.
   • Avoid designs where cats climbing high cannot get down; stagger base boards stepwise.
2. 2

   Cutting and Preparing Components

   ≈ 25 min

   Cut six base boards (15×400×400mm) from 15mm thick Lauan plywood. Prepare two hemp rope wrapped poles (φ90×2200mm), two 2×4 lumber posts (38×89×2200mm), 6.6m of φ8mm hemp rope, forty 50mm coarse-thread screws, and five pieces of boa material carpet (400×400mm).

   Cut

   Use the in-store cut service

   CutSTEP 2 / 11

   Tip

   • 15mm Lauan plywood provides a good balance of strength and lightness; 12mm will not support the weight.
   • It is quicker to purchase pre-made hemp rope wrapped poles; available at DIY stores.
   • Thin carpets are easier to apply; thick ones impede claw hooking.

   Watch out

   • Using thin plywood will cause cracking from cat impacts.
   • Soft poles are unstable; even with hemp rope wrapping, core should be hardwood.
3. 3

   Sanding All Components

   ≈ 25 min

   Sand Lauan plywood and 2×4 lumber with #120 grit followed by #240 grit. Cats lick and scratch, so no splinters are allowed, especially round off corners carefully.

   Sand

   #120

   SandSTEP 3 / 11

   Tip

   • Make all cat-contact surfaces smooth; verify by stroking with fingertips.
   • Plywood edges (ends) are rougher than surfaces; focus sanding there.
   • Perform sanding indoors or in well-ventilated areas due to dust.

   Watch out

   • A single splinter can injure the cat’s tongue or paw pads.
   • Dust on carpet is hard to remove; work in separate areas.
4. 4

   Marking Post Positions on Base Boards

   ≈ 20 min

   Mark post locations on four base boards with a pencil. On the bottom board (base), arrange two posts in a square. Place boards 2 to 4 at staggered heights (e.g., 300mm, 600mm, 900mm). Offset slightly from the centerline for better cat movement.

   Mark a line

   Use a try square

   MarkSTEP 4 / 11

   Tip

   • The base’s center of gravity must be balanced; use four posts in a square layout.
   • Stack boards in a staircase pattern for easy climbing.
   • Using a punch to mark hole centers aids drilling.

   Watch out

   • Locating posts too close to edges causes splitting when screwing.
   • Misaligned post placements cause overall distortion; use overlay transfer methods.
5. 5

   Drilling Pilot Holes in Base Boards and Posts

   ≈ 20 min

   Drill φ5mm pilot holes in base boards and 2×4 posts. Use a countersink bit on base boards to recess screw heads flush. For hemp rope wrapped poles, attach using included metal brackets.

   Drill a hole

   φ5mm

   DrillSTEP 5 / 11

   Tip

   • Countersinking improves finish and prevents cats from catching claws on screw heads.
   • Use a drill stop to control hole depth and avoid drilling through.
   • Keep 2×4 drilling holes at least 20mm from ends to prevent splitting.

   Watch out

   • Driving 50mm screws without pilot holes causes splitting in 2×4 posts.
   • If countersinks are too deep, screw strength is compromised.
6. 6

   Assembling Base Board and Posts

   ≈ 30 min

   Stand two posts (hemp rope wrapped pole and 2×4 lumber) vertically on the base board (450×450), then screw three 50mm coarse-thread screws per post (6 total) from underneath. Use a carpenter's square to confirm verticality. The base supports the most weight so use ample screws.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 6 / 11

   Tip

   • Check verticality with a level in two directions (front and side). Aim for zero deviation.
   • Apply wood glue at joint surfaces during screw driving for increased rigidity.
   • Screw heads are hidden underneath, so use more screws without concern for appearance.

   Watch out

   • Any post tilt causes upper boards to be uneven and unstable for cats.
   • Insufficient screws cause post wobbling during cat movement.
7. 7

   Attaching Middle and Upper Boards

   ≈ 30 min

   Attach the middle height boards (300 to 900mm) horizontally on posts using φ5mm pilot holes and 50mm coarse-thread screws (6 screws per board: 3 per post). Confirm horizontality with a level. Secure joints to withstand impact from cats jumping.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 7 / 11

   Tip

   • Uneven boards cause cats discomfort.
   • Drive screws along post centerline to avoid splitting.
   • Consider smaller boards at higher levels for balance.

   Watch out

   • Screw driving shocks may alter lower board horizontality; recheck after all three levels are assembled.
   • Insufficient screws risk falls; design to support 10kg cat + dynamic loads.
8. 8

   Wrapping Hemp Rope (Scratching Feature)

   ≈ 30 min

   If not using pre-wrapped poles, tightly wrap 6.6m of φ8mm hemp rope around 2×4 posts from bottom to top. Fix both ends with staples or screws. Avoid gaps by wrapping tightly.

   Build the frame

   Tighten joints firmly

   AssembleSTEP 8 / 11

   Tip

   • Start wrapping by inserting the rope end into a drilled hole on the post and fixing with wood glue to prevent loosening.
   • Fix rope periodically during wrapping with staples to keep tension.
   • Hide the rope end by inserting it into the same hole neatly.

   Watch out

   • Loose rope unravels from cats pulling; wrap tight and fix frequently.
   • Avoid synthetic ropes as cats may chew and ingest hazardous fibers.
9. 9

   Applying Carpet (Boa Material)

   ≈ 25 min

   Attach boa carpet pieces to the upper, middle, and base board tops with double-sided tape or wood glue. Trim corners to board shape with a cutter. Use strong adhesion to withstand cat clawing.

   Fix to the wall

   Anchor to studs

   InstallSTEP 9 / 11

   Tip

   • Select strong double-sided tape; normal tape peels off with cat claws.
   • Align carpet pile direction for aesthetic appeal.
   • Leave some excess margin at edges; fold under and secure for durability.

   Watch out

   • Weak adhesion allows carpets to peel during play, increasing ingestion hazards.
   • Avoid cheap carpets with degrading latex backing that powder easily.
10. 10

    Fixing to Wall for Tipping Prevention

    ≈ 20 min

    Secure the top of the tower to the wall using L-shaped brackets and earthquake-resistant belts to prevent tipping during earthquakes or vigorous cat movements. Confirm wall stud locations with a stud finder before fixing.

    Fix to the wall

    Anchor to studs

    InstallSTEP 10 / 11

    Tip

    • Wall fixing is essential for safety; 1200mm high towers can easily tip when cats jump.
    • Earthquake straps can be bought cheaply; dedicated products offer better security.
    • Plasterboard alone cannot hold; fasten into wall studs.

    Watch out

    • Omitting wall fixing risks the tower falling and injuring cats during earthquakes.
    • Confirm hardware load ratings cover tower weight, cat weight, and seismic forces.
11. 11

    Final Inspection and Introducing the Cat

    ≈ 15 min

    Verify all screws are tight, carpet adhesion is secure, and posts have no wobble. Place the tower at the installation site and confirm horizontality with a level. Adjust wobbles with felt pads under legs. Before introduction, shake strongly to test stability.

    Done!

    Done — nice work!

    DoneSTEP 11 / 11

    Tip

    • Place treats on boards immediately after completion to entice cats to climb without fear.
    • Do not force cats to climb on the first day; let them explore at their own pace.
    • Place other furniture nearby as ‘stairs’ for several days to help cats access the tower.

    Watch out

    • Insufficient checks can cause assembly faults leading to cat injuries.
    • If cats do not climb, location or scent may be unsuitable; observe for a while.

Warnings

• ⚠️Drill pilot holes before screwing to prevent wood splitting.
• ⚠️Tighten all joints securely to support the cat's weight.

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