Purpose and limits
The site provides general education. It does not provide individual legal, tax, accounting, insurance, engineering, or safety advice. A guide or calculator does not certify your skills or authorize a business activity.
Use the results with care
Results depend on the inputs and the stated formulas. They cannot predict demand, profit, local prices, vehicle condition, product compatibility, or the time needed for a job. Equipment allowances are planning estimates, not offers to sell. No income, finish, stain removal, coating life, or business result is guaranteed.
Read current product labels and equipment instructions. Confirm the surface, working conditions, protective equipment, insurance, permits, and local rules before you act. Stop when the task is outside your skills or safe working conditions.
Saved work
Browser saves are a convenience. They are not a backup service. Clearing browser data or changing devices can remove access to saved work. Copy or print a plan you need to keep. Do not enter sensitive customer or payment data into notes.
Site content and downloads
You can use the provided worksheets and checklists for your own planning and detailing work. Do not sell or republish the site content as your own. Third-party names, marks, instructions, and linked materials belong to their owners. A mention does not imply their endorsement.
External services
Product and service links help you research a decision. The external provider controls its price, availability, terms, delivery, returns, and privacy practices. Confirm these details before buying. The affiliate disclosure explains paid-link policies.
Availability and changes
Content and tools can change as sources, products, and requirements change. The site may be unavailable during maintenance. Do not misuse the service, attempt unauthorized access, interfere with its operation, or use its content to mislead customers.