This blog is about widgets: widgets in the general sense of the term, of which WordPress sidebar widgets are a specific case. (See the previously-posted Primer for two definitions of widget, and note that in this post, as in that earlier post, I’m using the first and more general definition.) But when developing widgets, it’s important to be aware that they are likely to find homes in blog sidebars.
So how wide are blog sidebars? One way to approach the question is to gather data about blog sidebar width, or, better, find some already-gathered data. One of the best sources of data about blog themes is engtech’s review of WordPress.com themes.
The table is this post is drawn from the comprehensive tables included in engtech’s very thorough reviews. Image width denotes the maximum width of an image in pixels. Although the number I went looking for is the one for the sidebar, I’ve also included the corresponding number for content: it provides a context for the sidebar number, and it will also be useful in its own right for widget-sizing purposes.
The table below shows that 17 of the 21 themes fall between 160px and 230px in terms of maximum sidebar image width, with 11 of those falling between 170 and 200. So much for the above-the-table summary; I’ll see you below the table if you want to stay for for detailed discussion.
| Theme |
Content image width |
Sidebar image width |
| Shocking Blue Green | Screen | 180 |
| Blix | 450 | 200 |
| Regulus | 460 | 200 |
| Sandbox | Screen | 200 |
| Kubrick | 450 | 190 |
| Pressrow | 540 | 230 |
| Andreas04 | Screen | 140 |
| Andreas09 | Screen | 180 |
| Connections | 510 | 170 |
| Pool | 550 | 170 |
| Cutline | 640 | 220 |
| Rounded | 640 | 310 |
| Day Dream | 430 | 160 |
| Light | 460 | 210 |
| Rubrick | 640 | 160 |
| Solipsus | 380 | 200 |
| Supposedly Clean | 360 | Can’t add images |
| Chaotic Soul | 490 | 200 |
| Tarski | 510 | 180 |
| Unsleepable | 500 | 130 |
| K2-lite | 500 | 220 |
I should admit that the data are dated and limited, drawn as they are from 2-year-old (i.e. late 2006) posts about the themes then available at WordPress.com. But I suspect an analysis of WordPress (including, but not limited to, WordPress.com) themes popular today would show a similar pattern.
My thanks to engtech, who really is a blogging hero. That reminds me, a comment on his theme reviews suggested that the data be put into a wiki, and the wiki maintained, as ongoing documentation of the themes available at WordPress.com. It was, and remains, a great idea, so if you feel strongly that there should be such documentation, start the wiki, let me know, and I’ll link to it.