Keycaps Cheat Sheet Simple
I've been rebuilding keyboards on and off for years, mostly because people hand me boards and ask me to help them pick keycaps. It's one of those topics where every forum post becomes a 47-comment argument about subjective typing feel, but there are actually hard facts you can use to narrow things down quickly. A Keycaps Cheat Sheet Simple doesn't need to be complicated. The single biggest factor in how keycaps feel is their profile. This is the shape and height of the cap, not the font or color. The major profiles you'll see in 2024 are Cherry, OEM, SA, XDA, DCS, and MB. Each has different dimensions, and manufacturers publish these specs, but here's what the numbers actually do to your fingers. OEM is the default height most keyboards ship with. It's uniform across all rows, which means every key feels the same distance from the board. Good for beginners. Bad if you already have a typing style tuned to something else. I switched from OEM to Cherry once because my pinky was hitting the side of each key on the spacebar row, and it took me three weeks to relearn everything.
Cherry profile is lower and flatter than OEM. The profile is designed so that your fingers rest more naturally when you're not actively pressing. It's popular in the mechanical keyboard space because it feels faster once you adapt. The tradeoff is that it looks sparse compared to OEM, and if you're coming from laptop keys, it can feel uncomfortably low. SA and DCS are tall, typewriter-style profiles. SA is dome-shaped with varying key heights per row. DCS is similar but with less pronounced curvature. These look great and feel very distinct, but they have a real problem: they are expensive and difficult to mass-produce consistently. You'll find variation between key rows even on the same set. I bought a secondhand SA set once and the Enter key was noticeably taller than the surrounding letters. Had to deal with it or send it back. XDA and MOA are flat, uniform, minimalist profiles. Every key is the same height and shape. XDA is more common. MOA is slightly taller. Neither has the character of Cherry or SA, but they work well for people who want zero friction in switching between keys. If you play games and type, this is often the most efficient choice.
Material: PBT vs ABS vs other plastics
PBT is polybutylene terephthalate. ABS is acrylonitrile butadiene styrene. PBT is harder, more textured, and far more resistant to shine over time. ABS is smoother out of the box but develops a glossy finish within months if you type regularly. The shine isn't cosmetic damage — it's wear. Your fingerprints transfer oils onto the surface, and ABS absorbs them quickly. I ran a side-by-side test on my own desk with two identical boards, one with PBT and one with ABS. After six months of daily use, the ABS keycaps were visibly shiny on the three most-used rows. The PBT set looked unchanged. The cost difference was roughly $40 to $60 for a full set. PBT costs more upfront but lasts significantly longer before you notice wear. There are other materials too. Nylon-coated keycaps exist. Resin options exist. They're niche. Unless you have a specific reason to buy them, stick with PBT or ABS. PBT is the safer choice for most people. ABS has its place in budget builds where saving money matters more than longevity.
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Stabilizers and key size
Most people forget about stabilizer compatibility until they buy a set and then discover the spacebar or shift keys rattle. A Keycaps Cheat Sheet Simple should include a note on this. Larger keys — spacebar, shift, enter, backspace — require either a stabilizer bar or a wire insert inside the keycap. Cheaper keycap sets often don't include these for the larger keys, which means you need to source them separately or hope your board already has compatible stabs. I once installed a new set of PBT keycaps that claimed to be universal but didn't include stabilizer bars for the 7u spacebar. My board had a 7u spacebar. I spent an afternoon figuring out that I needed to order aftermarket stabilizers from a third-party seller. It added two weeks to the build and $15 to the cost. If your keyboard uses non-standard stabilizer sizes, check before you buy. The standard sizes are 1u, 1.25u, 1.5u, 1.75u, 2u, 2.25u, 2.75u, 5u, 6.25u, and 7u. Most mainstream boards use 1u through 2.25u. Some ergonomic or split keyboards use non-standard sizes. Check your layout before purchasing.
Switch compatibility
Most modern keycaps are designed for CherryMX-style stems. That's the cross-shaped stem that comes with the vast majority of mechanical switches. If your keyboard uses rare switches — Topre, Alps, or early Das Keyboard switches — the keycaps won't fit. Topre uses a round stem. Alps use a unique rectangular stem. Das Keyboard originals used Alps-compatible switches. This seems obvious, but it's the most common mistake I see. People order keycaps online, they arrive, they try to pop them on, and nothing fits. Before you buy, confirm your switch type. If you're unsure, look up your keyboard model and find the switch specifications. It takes two minutes and saves you the return shipping cost.
How to use a cheat sheet when shopping
When you're actually browsing, here's the quick decision path I use: A simple reference chart isn't worth memorizing. It's worth having open on a second screen while you shop. Look up dimensions for each profile, compare them to what you currently use, and decide whether the change is worth it. The biggest mistake people make is jumping from OEM to SA without understanding that the height difference is substantial enough to affect wrist position. The biggest pitfall is assuming that all "Cherry profile" keycaps feel the same. Different manufacturers produce slightly different Cherry profiles. GMK, ePBT, and Drop all make Cherry-height keycaps, but the exact radius and finger contact area vary. GMK tends to be slightly taller than standard Cherry. ePBT is closer to true Cherry. Drop sits somewhere in between. If you're picky about feel, read reviews from people who already own both sets before committing.
Another pitfall is buying keycaps that are marketed as "OEM" but are actually a different profile. Some budget manufacturers label their generic caps as OEM when they're closer to SA height or something else entirely. The only reliable way to know is to check the published specs from the manufacturer, not the marketplace listing. If the listing doesn't provide dimensions, don't buy it. This is the basic framework. Everything else is flavor — color schemes, legends, font choices. Those matter for aesthetics but they don't change how the keyboard feels. Start with profile, material, and switch compatibility. Get those right and the rest is just decoration.
