For 2014 it was 900x700, covering around 75% of viewers.
Sources: statcounter.com, screenresolution.org, and w3schools.com on 2015-03-26.
Notes: Does not include mobile device resolutions, aside from tablets. For a list of mobile resolutions, see the table from 2014 here. Accounts for 1024 x 768px screen, covering around 75% of cases (980 x 720px including browser chrome). Vertical resolution for tablets and above-the-fold content without scrolling.
For desktop app design, more than 2/3rds of all screens are at least 1280x768 as of March 2015, according to ScreenResolution.org.
| Most Common Screen Resolutions | |
|---|---|
| Resolution | Percent |
| 1366x768 | 24.40 |
| 1024x768 | 12.97 |
| 1920x1080 | 10.97 |
| 1280x1024 | 6.32 |
| 1280x800 | 6.19 |
| 1440x900 | 5.03 |
| 1600x900 | 4.85 |
| 1680x1050 | 2.84 |
| Subtotal | 73.57 |
| Other | 26.43 |
| Total | 100.00 |
| Most Common Screen Widths | |
|---|---|
| Width | Percent |
| Over 1000 px | 73.57 |
| Over 1200 px | 60.60 |
| Over 1300 px | 48.09 |
| Over 1400 px | 23.69 |
| Over 1500 px | 18.66 |
| Over 1600 px | 13.81 |
| Over 1700 px | 10.97 |
| Most Common Screen Heights | |
|---|---|
| Height | Percent |
| Over 700 px | 73.57 |
| Over 800 px | 34.53 |
| Over 1000 px | 24.65 |