Discover How Keycap Profiles Transform Your Custom Keyboard Build

Keycap Profiles Explained for Custom Builds

When building a custom mechanical keyboard, keycaps are more than just plastic covers for your switches. The profile of your keycaps—their shape, height, and sculpt—dramatically affects both aesthetics and typing experience.

Let's break down everything you need to know about keycap profiles to make informed choices for your next custom build.

What Are Keycap Profiles?

Keycap profiles refer to the three-dimensional shape of keycaps when installed on your keyboard. They vary in:

• Overall height
• Row-to-row sculpting
• Surface curvature
• Angle of the typing surface

Your choice of profile impacts finger travel distance, typing comfort, and the sound your keyboard produces when typing.

Common Keycap Profiles

Cherry Profile

Cherry profile keycaps are among the most popular and widely used profiles in the mechanical keyboard community.

• Height: Medium-low profile
• Shape: Sculpted (different shapes per row)
• Feel: Comfortable for extended typing
• Compatibility: Excellent with Cherry MX-style switches

Cherry profile offers a good balance between typing comfort and aesthetics. The sculpted design guides your fingers naturally across the keyboard, reducing typing fatigue.

OEM Profile

OEM is the standard profile found on most pre-built mechanical keyboards.

• Height: Slightly taller than Cherry
• Shape: Sculpted, with distinct row differences
• Feel: Familiar to most users
• Compatibility: Universal with most mechanical keyboards

If you're transitioning from a standard keyboard, OEM profile will feel most familiar and require minimal adjustment.

SA Profile

SA (Spherical All) keycaps stand out with their tall, retro look inspired by vintage keyboards.

• Height: Very tall
• Shape: Highly sculpted with spherical tops
• Feel: Requires more finger travel, distinctive typing experience
• Sound: Creates deeper, fuller sound when typing

SA profile creates a striking visual statement and produces a deep, satisfying sound that many enthusiasts love. However, the height can require an adjustment period for typing.

DSA Profile

DSA offers a uniform, low-profile alternative.

• Height: Low to medium-low
• Shape: Uniform across all rows, with spherical tops
• Feel: Flat layout with minimal finger travel
• Compatibility: Works well with alternative layouts like Dvorak or Colemak

The uniform height makes DSA ideal for keyboard layouts where you might move keycaps between rows, as in custom layouts and keymaps.

KAT/KAM Profile

KAT and KAM are newer profiles gaining popularity.

• Height: Medium-high (between OEM and SA)
• Shape: KAT is sculpted; KAM is uniform
• Feel: Comfortable with moderate finger travel
• Compatibility: Good for custom layouts

These profiles offer a middle ground between the extreme height of SA and the flatness of DSA.

MT3 Profile

Developed by Matt3o, MT3 is inspired by old IBM terminals.

• Height: Tall
• Shape: Deep dish, highly sculpted
• Feel: Fingers nest comfortably in the deep spherical tops
• Sound: Rich, thocky sound profile

MT3 creates a unique typing experience with its deep dish design that cradles your fingertips.

How Profiles Affect Your Typing Experience

Ergonomics and Comfort

The profile you choose directly impacts wrist position and finger movement:

• Taller profiles (SA, MT3) may require a wrist rest for comfortable typing
• Lower profiles (DSA, Cherry) allow for a more natural wrist position
• Sculpted profiles guide finger placement and can reduce typing errors
• Uniform profiles offer consistency but less finger guidance

For those concerned with ergonomics, exploring ergonomic keyboard designs might be beneficial alongside choosing the right profile.

Sound Characteristics

Keycap profile significantly affects your keyboard's sound:

• Taller keycaps generally produce deeper sounds
• Thicker keycaps create fuller, less hollow sounds
• Material density affects resonance and pitch

When paired with the right mechanical switches, your keycap profile can help achieve your desired sound signature.

Choosing the Right Profile for Your Build

Consider Your Typing Style

• Fast typists might prefer lower profiles with less finger travel
• Heavy typists often enjoy the tactile feedback of sculpted profiles
• Touch typists benefit from sculpted profiles that guide finger placement
• Gamers may prefer uniform, flatter profiles for consistent key feel

Aesthetic Considerations

Keycap profiles dramatically alter your keyboard's appearance:

• SA and MT3 create a vintage, retro aesthetic
• Cherry and OEM offer a clean, modern look
• DSA provides a minimalist, sleek appearance
• KAT/KAM balances height with modern design elements

For a complete customization guide, check out how to customize your mechanical keyboard.

Material Compatibility

Different profiles are commonly available in specific materials:

• ABS is common across all profiles, offering smooth texture and shine over time
• PBT resists shine but may be limited in some profiles due to manufacturing challenges
• Double-shot and dye-sublimated legends are available across profiles but vary in quality

For more on keycap materials, see our detailed guide to keycap materials and textures.

Mixing Profiles: Yes or No?

Some enthusiasts mix profiles for specific purposes:

• Using different profiles for modifier keys vs. alphanumerics
• Highlighting function keys with taller profiles
• Creating ergonomic zones with varying heights

While mixing can create unique typing experiences, it may create visual inconsistency and unexpected typing dynamics.

Profile Availability and Compatibility

Not all profiles are equally available:

• Cherry and OEM have the widest selection of keycap sets
• SA and DSA have good availability but fewer options
• MT3, KAT, and KAM have more limited selections
• Artisan keycaps are typically made in specific profiles

When planning your build, check compatibility with your keyboard's layout and switch type.

Final Thoughts