Using wide screens well: max widths, columns and readable lines

Open some websites on a large monitor and you will find a paragraph that starts at the far left edge and ends somewhere near the clock on your taskbar. Reading it feels like watching a tennis match. Other sites go the opposite way, with a thin strip of content in the middle and acres of empty grey on both sides. Choosing a sensible website max width, and deciding what happens inside it, is one of the simplest layout decisions with the biggest effect on how professional a site feels on big screens.

Why text should not stretch across the whole screen

When lines get very long, the eye has to travel a long way back to find the start of the next line, and it often lands on the wrong one. Readers slow down, skip content and tire quickly. When lines are very short, the eye jumps back too often and reading becomes choppy.

Typography guidance has long suggested that roughly 50 to 75 characters per line, including spaces, is comfortable for body text in most languages set in Latin script. The WCAG guidelines include an advisory recommendation to keep blocks of English text to no more than 80 characters wide. You do not need to hit an exact number; you need to stay out of the extremes.

The ch unit makes this easy

CSS has a unit called ch, roughly the width of the "0" character in the current font. Setting article text to something like max-width: 68ch keeps line length reasonable whatever font size the user chooses. Because it scales with the text, it also respects people who have increased their browser's default font size.

Picking a max width for the overall layout

Line length is about text. Layout max width is about the whole page: header, grids, footers and sections. The two are related but should be set separately.

Many business sites use a main container somewhere between about 1140 and 1320 pixels wide, centred on the screen. That range fits comfortably on common laptop and desktop resolutions while leaving margins on wider monitors. There is nothing magic about these numbers, so choose based on your content:

• Text-led sites such as blogs, consultancies and news articles can use a narrower container, since most content is reading material.
• Catalogue and listing sites benefit from wider containers so more products or properties fit per row.
• Dashboards and admin panels can often use the full width, because tables and charts genuinely need it.

Full-bleed backgrounds, contained content

A common and effective pattern is to let section backgrounds, colour bands and hero photos run edge to edge, while the text and buttons inside them stay within the container. The page feels expansive on a big screen without any content drifting into the corners.

Using columns without breaking readability

Once content is contained, the question becomes how to divide that space. Wide screens can hold multiple columns, but columns work best for scannable content, not continuous reading.

1. Cards and features: three or four columns of short cards work well. Use CSS Grid with auto-fit and a minimum card width so the column count adjusts itself.
2. Long articles: keep a single text column. Splitting prose into newspaper-style columns forces readers to scroll up and down repeatedly on screen.
3. Text with media: a paragraph beside an image, alternating sides down the page, uses width well on service pages.
4. Forms: keep the form itself to a single column for flow, and use the spare width for supporting content such as contact details or a short list of what happens next.

Sidebars: helpful companion or distraction?

Wide layouts invite sidebars, and they can be useful. A table of contents beside a long guide, filters beside search results, or an order summary beside a checkout form all earn their place because they support the main task.

Sidebars go wrong when they fill with unrelated widgets: archives, tag clouds, social feeds and assorted banners. On large screens these compete with the content, and on mobile they get pushed to the bottom where nobody sees them. A useful test is to ask whether a visitor would miss the sidebar if it vanished. If not, remove it and let the main column breathe.

Sticky sidebars

A table of contents or order summary that stays in view while scrolling can be genuinely helpful on desktop. Make sure a sticky sidebar is shorter than the screen height, or its lower links will be unreachable, and switch off stickiness on smaller screens.

Handling very wide and ultrawide monitors

Monitors of 2560 pixels and wider are increasingly common in offices and among designers and gamers. A few checks keep layouts tidy at those widths:

• Confirm headers do not scatter the logo to one corner and the menu to the far other corner, leaving a huge gap between them. Keep header content inside the same container as the page.
• Make sure hero images are large enough, or constrained in height, so they do not look pixelated or crop out the subject.
• Check that background patterns and gradients extend fully rather than ending abruptly.
• Test browser zoom at 125% and 150%, since many people on high-resolution screens zoom in, which effectively narrows the layout.

A quick wide-screen review you can run today

Open your site on the largest screen available, or use browser responsive mode set to 1920 and 2560 pixels wide. Check your longest article, a listing page and your contact page. For each, ask: are text lines comfortable to read, is content sensibly centred, do columns suit the content type, and does every sidebar item help?

Most fixes are a few lines of CSS in the theme. If your template fights those changes, our website development team can adjust the layout system so it holds up from a phone to an ultrawide display.

Frequently asked questions

What is a good max width for a website container?

Many business sites use roughly 1140 to 1320 pixels, but the right value depends on content. Text-heavy sites can go narrower; product grids and dashboards may go wider. Keep body text itself around 60 to 75 characters per line.

Should a website be full width on large screens?

Backgrounds and images can be full width, but reading content usually should not. Full-width text on a large monitor creates long lines that are tiring to read.

How many characters per line is best for readability?

A range of about 50 to 75 characters per line is a widely used guideline for body text. The exact number matters less than avoiding very long or very short lines.