White mug standing in a black foldable cup holder mounted under a wooden desk top, on the honeycomb coaster of the holder

Desk Cup Holder: A Foldable Mug Holder That Hides Under the Desk

4 min read Updated November 6, 2026 By Kahaus · printed in Poland

In short

The holder mounts under the edge of your desk and keeps your mug beside the top, away from the keyboard, papers and cables.
The opening is 85 mm, sized for mugs of about 80 mm in diameter with a handle. Measure yours before ordering.
You fix it with two screws or strong double-sided tape. Screws and tape are not in the parcel.

A desk cup holder sounds like a small thing until you knock a full mug over a keyboard or a stack of papers. This one does not stand on the desk at all: it mounts under the edge of the top, holds your mug beside the desk while you drink and folds flat underneath when you are done.

We print it ourselves in Poland, to order, from a design by Perry. Below is how it works, how to mount it, which mugs fit and what it is not meant for.

Why the mug is the problem on a busy desk

On most desks the mug ends up in the worst possible place: next to the keyboard, on top of notes or right beside a laptop. It takes up space you need and sits exactly where your elbow goes.

A cup holder for desk use solves this by moving the mug off the work surface. Ours parks it under the edge of a desk, table, shelf or workbench, so the top stays clear for the work itself.

Office or home office: the mug sits beside the top, away from the keyboard and cables.
Gaming or drawing desk: no mug in the way of the mouse or large sheets of paper.
Workbench: your drink stays off the surface where you sort small parts.

Black desk cup holder folded flat, seen from above: slotted frame, round honeycomb coaster and the folding section with its hinges — The holder folded flat: 19.6 × 14.1 cm, 1.2 cm thick, 124 g. See the product →

How the folding cup holder works and how to mount it

The holder has five parts: a flat frame, a folding section with hinges printed in one piece, a removable coaster with a honeycomb pattern and two locking pins. You do not assemble the hinges; they come off the printer already working.

Fix the frame under the top, flush with the desk edge, using two screws (the slots take 4 mm screws) or strong double-sided tape.
Slide the holder in all the way back.
Push the two pins in from both sides to lock it.

When you want a drink, fold it out: the open arms hold the mug and the base with the coaster sits under it. Afterwards, fold the base up and the folding cup holder lies flat under the top.

Screws and tape are not included, so plan for them. If you can drill into your desk, screws give the firmer fix. Tape is the option for a desk you would rather not drill: clean the underside of the top first and press the frame on firmly.

Sizes and fit: will your mug fit this desk cup holder?

This is the one thing to check before ordering. The opening is 85 mm and suits mugs of about 80 mm in diameter. The arms are open, so the handle stays outside. If your mug is clearly wider or narrower, measure it across the rim first.

What	Value
Opening	85 mm
Mugs it suits	About 80 mm in diameter, with a handle
Folded size	19.6 × 14.1 cm
Thickness when folded	1.2 cm
Weight	124 g
Parts	Frame, folding section, coaster, 2 locking pins
Colours	Black, white, grey, beige, chocolate, pink

Each order is one holder in the colour of the chosen variant. Black and grey blend in under a dark desk, white and beige under a light one. As an under desk cup holder it stays mostly hidden anyway.

White foldable cup holder for mounting under a desk, folded flat and seen at an angle, with the round opening and the honeycomb coaster — Opening 85 mm for mugs of about 80 mm with a handle, here in white. See the product →

What it is not for, and PLA in the heat

The holder is made for one mug with a drink. It is not a shelf: do not load it with other things, do not lean on it and do not hang anything heavy from it.

It is 3D printed from PLA, and visible layer lines are part of the process. PLA softens at high temperatures, so keep the holder away from radiators and from sun behind glass. A desk right next to a radiator is the wrong place for it.

The rest of a tidy desk

Once the mug is off the top, the next things that crowd a desk are usually headphones, pens and a phone. We also print a headphone stand, 25 cm, an angled pen holder with 4 grooves and a phone stand, 9.6 cm. More ideas are in our guide to desk decor without clutter, and if you work on a laptop, see the foldable laptop stand from the same designer. The rest is in desk gadgets and practical home.

About the designer

The holder is a design by Perry. We print it under Perry's commercial licence, without any changes to the design.

Licensed design by Perry — makerworld.com/@Peerry

See all our desk gadgets

Questions we often hear

Are screws or tape included?

No. You need two screws that fit the 4 mm slots, or strong double-sided tape. The parcel holds the holder itself: frame, folding section, coaster and two pins.