Homeowners cannot find replacement toilet seats that fit their non-standard bolt spacing

Homeowners with older or non-standard toilets struggle to find replacement seats because manufacturers only produce seats for common bolt spacing patterns. When they purchase a standard replacement seat, it doesn't fit their toilet, forcing them to either modify the seat (requiring tools and skills they may lack), buy expensive custom solutions, or live with a broken toilet seat. Current solutions fail because there's no easy way to identify compatible seats before purchase, and modification instructions are scattered across DIY forums.