Two years ago a custom-board recommendation defaulted to 65% with a polite note about 75% as the next step up. The KBD75 v3's staying power as a default recommendation, the QK75, and a crowded mid-tier have flipped that order. 75% is now the layout customs reach for first.
60%, 65%, 75%, TKL, full-size — the names read like a settled taxonomy, but each cut trades away a specific cluster of keys for a specific amount of desk space. Here's what a reader actually keeps and gives up at each size, and how a firmware layer changes the math.
Every custom-keyboard buyer's guide since the mid-2010s opens with the same four-term vocabulary — 60%, 65%, 75%, TKL — as though it always existed. It didn't. One open-source PCB out of a geekhack thread is most of the reason that taxonomy exists at all.
This pairing has been on the bench for months, and a free Sunday finally made it happen. The Sonnet is a soft 75 with a block mount, and Oil Kings are a heavy factory-lubed linear — together they hit a register worth coming back to.
Mode's second round of its 75% Sonnet board ran at CannonKeys from 2026-06-01 through 2026-07-15 after a vendor-side timeline shift. See the in-article update for the dates and accent-weight color options; the closed entry is archived at /group-buys/past.
The label appears on keyboards at every price point, from $90 prebuilts to $350 group-buy customs, but two boards with identical spec-sheet language can sound nothing alike. Here is what the term actually tells you, and what it doesn't.