Cleaner Coffee Corners

Keep your space tidy with less mess and fuss.

Solid Oak Knock Bar

Real oak adds a natural, premium finish to your daily coffee setup.

Built to Last

Durable, impact-resistant and made for daily use.

Loved by Home Baristas

Designed in the UK for the home espresso community.

Why choose Square?

High-capacity design

Holds up to 20–22 pucks, perfect for multiple espressos, guests or busy mornings.

Square knock box in a coffee setup

Tidy workflow

Designed for quick, clean knocking without cluttering your setup.

Portafilter knocking coffee puck into a rectangular knock box

Custom colour pairings

729 colour combinations to match your machine, space and style.

A note on 3D printing

Each KNOCDIC® knock box is 3D printed in small batches. Subtle layer lines may be visible — this is a natural part of the process and a mark of its origin.

Why we 3D print our products →

Materials & care

Body: Premium plant-based PLA

Knock bar: Solid real oak wood

Hand wash only; avoid dishwasher and high heat.

FAQs

How many coffee pucks can the square knock box hold?

The square knock box holds approximately 20–22 espresso pucks, making it ideal for busy home coffee setups, multiple drinks, or shared households.

Which knock box should I choose?

Choose Rectangular if you need a slim knock box for narrow spaces. Choose Square if you want more capacity and a larger opening for busier coffee routines.

Which inner colour is best?

For everyday use, we usually recommend a darker inner colour such as Matte Black, Charcoal, or Ash Grey, as coffee marks are less visible.

Is the inner box removable?

Yes. The square design includes a removable inner box, making it easier to empty, clean, and maintain after daily use.

Is the oak knock bar removable?

Yes, the knock bar is designed to be removable, making the knock box easier to clean and maintain.

How do I clean the knock box?

Simply empty the used coffee pucks and wipe the box with a damp cloth. Please avoid putting it in the dishwasher, as high heat may affect the 3D printed material.

What material is it made from?

The knock box is 3D printed using durable PLA-based material and finished with a real oak knock bar. Slight layer lines are part of the 3D printed finish.

Is it heavy enough to stay in place?

Yes, it is designed to feel stable during daily use while still being lightweight enough to move, empty, and clean easily