Can you machine wash a large 8x10 outdoor rug?

Rarely in practice. Multiple HomeDecorating threads point out that 8x10 and 9x12 'washable' rugs don't fit a standard home washer, so owners end up hosing them down or using a laundromat. For large sizes, prioritize a rug you can rinse and air-dry outdoors rather than relying on the washable claim.