Keyboard Sizes Explained
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Keyboard size is usually the first real decision you make, and it shapes almost everything else about the board. Size refers to how many keys are present and how tightly they are packed, which in turn affects desk space, mouse room, and how much you have to relearn. The common named sizes are full size, tenkeyless, 75 percent, 65 percent, and 60 percent, and each one drops a group of keys to save width.
A full size board keeps everything: the alphas, a function row, arrow keys, navigation cluster, and a dedicated number pad on the right. This is the traditional office layout and it is ideal if you enter numbers all day or rely on the nav cluster. The trade off is width, which pushes your mouse further to the right and can strain the shoulder over long sessions.
Tenkeyless, often written as TKL, removes the number pad but keeps the function row, arrows, and navigation keys. It is the most popular starting point for people leaving a full size board because nothing you use often disappears, yet you reclaim a meaningful chunk of desk. Many typists find TKL to be the comfortable middle ground between familiarity and space.
The 75 percent layout squeezes a TKL feature set into a tighter footprint by pushing the function row and a slim column of keys right up against the alphas. You keep function keys and arrows, but the gaps vanish, so it takes a short adjustment period. It is a favorite for people who want compact size without losing the top row.
Going smaller, 65 percent drops the function row but keeps dedicated arrow keys and a few navigation keys, while 60 percent removes the arrows and function row entirely. On these boards you reach missing keys through a function layer, holding a modifier to turn other keys into arrows or shortcuts. Smaller boards free up huge amounts of desk and travel well, but they ask you to learn layers, so pick the smallest size whose missing keys you are genuinely willing to live without.