Learn How to Climb with Boulder Cube

1. How to Set a Problem

  • Step 1. Attach the Holds

    • Use the power driver and bolts to install the holds.


    You can place them at any position and angle—set your own route just like a professional setter.

  • Step 2. Mark Your Problem

    • Use the provided stickers to mark the Start and Top holds.

    Set a difficulty level and label it on the start hold.

    You can also use masking tape if you prefer.

2. How to Send

  • Use one hand only 🖐

    • Start by placing all five fingers on the hold marked “Start.”
    • Finish the problem by placing all five fingers on the hold marked “Top.

  • ✅ What’s Allowed

    When your palm is facing down
    ✅ It’s okay to touch the cube with your fingers.
    ✅ Grabbing the edge (arete) is also allowed.

  • ❌ What Not to Do

    When your palm is facing up
    ❌ Do not grab the cube — always grip the holds only.
    ❌ No dynos. Hard landings could damage the wooden cube.

🎯 Tip: These rules are just a guide
feel free to create your own variations and challenge your friends with fun or creative problems.

⚠️ Please Read Before Use: Safety Notice

Boulder Cube is a handcrafted training tool made from real wood.
To ensure safe use and maintain product quality, please read the following carefully. By using Boulder Cube, you acknowledge and accept the unique characteristics that come with handcrafted products.

Keep it Safe: Use on a Soft Surface

Always use Boulder Cube on a soft, padded surface — such as a carpet, bed, sofa, or bouldering mat.

Hard surfaces can cause serious damage. Always use a padded surface.

Don’t Overtighten When Attaching Holds

Always set the top black button on the driver so that the number “1” is visible.

When tightening holds, apply only light pressure — just enough to keep the hold from moving. Excessive torque can damage the insert nuts inside the cube.

Cube Care Instructions

• Marks may appear after attaching and removing holds.

• Gently sand the surface with the included soft sandpaper, then wipe it clean with a damp tissue.

• Avoid using rough sandpaper — it may damage the cube’s surface.

100% Handcrafted Product

  • • Minor Surface Marks

    Small scratches or surface marks may be present.

  • • Center Hole Marks

    You may notice white scratches or black marks around the center hole — these are from pre-fit testing.

  • • Slight Edge Lift

    Some holds may not sit completely flat, and the edges may lift slightly due to uneven bottoms.

  • • Natural Wood Characteristics

    The wooden cube may have natural grain patterns or small scratches inherent to real wood.