Four monitors in a 2×2 grid wallpapers
Wallpapers for four Full HD monitors in a 2×2 grid — the trading-desk layout. A single 4K image is split into four pieces with gaps for the bezels, so the picture looks continuous from every angle.
6 wallpapers big enough for 3840×2160
Questions
How do I set one wallpaper across quad 2×2 screens on Windows?
Download the “Span” file from My Desk, right-click it and choose Set as desktop background, then open Settings → Personalisation → Background and set “Choose a fit” to Span. Or set each per-screen file on its own monitor: right-click it in Settings → Background and pick “Set for monitor”.
How do I do it on a Mac?
macOS has no span option, so use the per-screen files: open System Settings → Wallpaper, pick each display at the top and choose its file.
Why do my lines break between monitors?
A plain wide image ignores the plastic frames around your screens. My Desk measures them and leaves that part of the picture out, so straight lines continue across the gap.