Units - The length of each cap is determined by “units”. Shown as the number of units followed by a “u” most of the time. All the alphabetical caps are 1u.
Standard Sizes on ANSI Keyboard
Below are the sizes for a standard keyboard layout as a foundation for other layouts you may encounter.
Cap | Row | Unit Length | Stabilizer |
Esc | R1 | 1u |
|
Tab | R2 | 1.5u |
|
Caps Lock | R3 | 1.75u |
|
Left Shift | R4 | 2.25u | Yes (2u) |
Left Control | R4 | 1.25u |
|
Left GUI | R4 | 1.25u |
|
Left Alt | R4 | 1.25u |
|
Spacebar | R4 | 6.25u | Yes (6.25u) |
Right Alt | R4 | 1.25u |
|
Right GUI | R4 | 1.25u |
|
Right Menu | R4 | 1.25u |
|
Right Control | R4 | 1.25u |
|
Right Shift | R4 | 2.75u | Yes (2u) |
Enter | R3 | 2.25u | Yes (2u) |
Backspace | R1 | 2u | Yes (2u) |