A single-wide trailer is typically 8 feet wide on the road, though some modern manufactured homes sold as single wides can be wider, often around 12 to 18 feet depending on the source and design.

Quick scoop

  • Classic single-wide: about 8 feet wide.
  • Common manufactured-home single-wide: often 12 to 18 feet wide.
  • Some mobile-office single-wides: usually 14 feet wide or less.

What that means

The exact width depends on whether you mean a traditional transport width or a modern manufactured home classification. For most people asking casually, “single wide” usually means about 8 feet wide.

Practical example

An 8-foot-wide unit is narrow enough to move on standard roads without special transport issues, which is why that width became the baseline.

TL;DR

If you just want the usual answer: about 8 feet wide.