Desk Mat Size Guide: 28 × 16 in (70 × 40 cm) vs 36 × 18 in (90 × 45 cm)

Choose a 70 × 40 cm (28 × 16 in) desk mat when you want a more compact footprint, and consider 90 × 45 cm (36 × 18 in) when your desk has room for a wider surface. Measure the usable area first, including your keyboard, mouse movement, monitor stand, and other objects. The larger size is not automatically more comfortable if it crowds the rest of the desk.

Ink Cabin’s catalog lists Medium at 28 × 16 in (70 × 40 cm) and Large at 36 × 18 in (90 × 45 cm). The inch labels are Podbase’s rounded descriptions; use the centimeter measurements when planning a tight fit.

Seeing the two desk mat sizes as real objects

Size charts are easy to skim and easy to misread. The studio image shows a finished mat as a physical surface with rounded corners and a printed field that has to live with a keyboard. Medium at 28 × 16 in (70 × 40 cm) and Large at 36 × 18 in (90 × 45 cm) are not scaled versions of the same picture: they have different aspect ratios, so a layout that looks balanced on one will crop on the other.

Put a paper rectangle on your desk before you choose. Mark where the keyboard, mouse, and monitor feet sit, then look back at this photograph and ask where a name or illustration would still be visible. Large adds width more than depth, which helps a wide landscape but can swallow a centred logo. Confirm the selected size in the designer rather than resizing a single export to cover both options.

Compare the dimensions directly

The medium mat is 70 cm (28 in) wide and 40 cm (16 in) deep. The large mat adds 20 cm of width and 5 cm of depth, which can make a noticeable difference when positioning a keyboard and mouse side by side.

Their areas are 2,800 and 4,050 square centimeters respectively. The larger rectangle therefore provides approximately 45 percent more surface area, although that percentage does not tell you how much free mouse space remains after placing your equipment.

The shapes also differ. Medium has a width-to-depth ratio of 1.75:1, while Large is 2:1, so the large mat is proportionally wider as well as physically larger.

Measure the usable desk area

Measure the clear area where the mat will actually sit, not just the desk’s advertised width. Monitor feet, a laptop stand, a lamp, speakers, and cable openings can all reduce the useful rectangle.

Consider the front edge as well. If you prefer space between the mat and the desk edge, include that space in your measurement instead of planning a fit that uses every available centimeter.

Check whether the desktop has curved corners or a shaped cutout. A rectangular mat should be evaluated against those features rather than assuming the whole published desktop size is available.

Try a paper footprint before buying

Use sheets of paper joined together, or another removable marking method suitable for your desk surface, to represent each footprint. Avoid adhesive that could damage the finish.

Place the keyboard and mouse as you normally use them. Move the mouse through a realistic range, open your notebook, and check whether frequently used objects are being pushed into awkward positions.

This simple exercise tests the arrangement rather than just the measurement. Leave the trial layout in place for a normal work session if possible, because small inconveniences can be easier to notice through use.

Work through a compact-desk example

Imagine a rectangular desk that is 100 cm wide and 60 cm deep. A centered 70 × 40 cm mat leaves 30 cm of total width outside the mat and 20 cm of total depth outside it.

If centered equally, that would be 15 cm at each side and 10 cm at the front and back. Those are geometric clearances only; they do not account for the monitor or anything else occupying the desk.

On the same desk, a 90 × 45 cm mat leaves only 5 cm on each side when centered. It may still fit, but the paper test will show whether the reduced surrounding space suits your arrangement.

Account for keyboard width and mouse movement

Suppose your keyboard occupies 44 cm of width. Subtracting that from the medium mat’s 70 cm leaves 26 cm before allowing for gaps and positioning.

The same simplified calculation leaves 46 cm on the large mat. That does not mean all of the remaining width automatically becomes useful mouse space, because keyboard placement and your preferred working position matter.

Measure your actual keyboard instead of relying on a generic label such as full-size or compact. Different models can have different housings, and a wrist rest adds another piece to the layout.

Consider depth, not only width

The large mat is only 5 cm deeper, but that difference can matter if you want a wrist rest or notebook on the surface. It can also bring the mat closer to a monitor stand at the back.

Decide which objects should sit on the mat and which should remain outside it. A mat that partially overlaps an object’s base may create a less tidy arrangement than one that clearly includes or excludes that object.

Do not choose a size solely from an attractive setup photograph. Camera angle and unfamiliar equipment dimensions can make the same mat look much larger or smaller than it will on your own desk.

Adapt the artwork to the chosen shape

Choose the physical size before finalizing the design. A composition prepared for a 2:1 rectangle does not transfer perfectly to a 1.75:1 rectangle without cropping, adding space, or changing the arrangement.

Keep the main visual elements away from areas your keyboard will cover. A small name placed in a technically printable location may disappear during everyday use.

For a landscape image, compare both crops before deciding. A flexible abstract pattern may adapt easily, while a photograph with important subjects near both ends may need more careful positioning.

Confirm the production template separately

The finished mat dimensions and the print canvas are not interchangeable. A production file may include allowances that are not described by the physical size alone.

The current site catalog uses Podbase’s official die-line for each size: both export a 10,866 × 5,492 pixel full-area print file, with a size-specific safe area for the finished mat. Confirm placement in the designer before creating precise edge-aligned artwork.

Our desk mat image-size guide explains the resolution calculations and the distinction between a finished-size reference and a production template. That check belongs after the physical footprint decision, not in place of it.

Make the size decision practical

Choose Medium if its measured footprint supports your normal activities and leaves the surrounding space you want. Choose Large if the additional width is genuinely useful and the whole rectangle fits comfortably.

Browse the desk mat options after testing your layout. Then follow the design walkthrough to turn that measured space into an artwork composition that still looks intentional when your desk is in use.

Start designing