Reference Library
Primary resources readers can use for safety and product-specific verification.
General home-improvement articles should not replace the instructions for the actual material, appliance or tool you own. This page collects primary sources that are useful when a topic moves beyond simple measuring and planning.
Manufacturer documentation
For flooring, coatings, fasteners, tools and sealants, search the manufacturer’s official site for the exact model/product installation guide, technical data sheet, safety data where relevant, and warranty conditions. Product rules can change between lines from the same brand.
Lead-safe renovation (United States)
For older painted housing in the US, see the US EPA lead-safe renovation guidance for DIYers and the broader Renovation, Repair and Painting consumer information.
Ladder safety
For established ladder-safety principles, see the OSHA ladder safety resource. Local workplace or residential requirements may differ by jurisdiction.
Local codes and qualified professionals
Electrical, gas, structural, fire-rated, hazardous-material and certain plumbing work can be regulated locally. Check the authority having jurisdiction where you live and use appropriately qualified professionals when the work requires it.