Texas Future Farmers of America (FFA) Agricultural Technology and Mechanical Systems Career Development Events (CDE) Practice Exam

Final sanding of wood is recommended to be done with the grain to achieve the best possible surface finish. Sanding with the grain allows for a smoother surface and helps to minimize the visibility of sanding marks. This technique preserves the wood's natural appearance and prepares it effectively for finishing treatments like staining or sealing.

When sanding against the grain, the surface can get scratched, which may not only affect the aesthetic but also impact how stains and finishes adhere. Sanding before staining, while sounding practical, often leads to uneven surfaces if the wood is not adequately prepped first. Finally, sanding after sealing is generally not advisable as it may damage the sealant layer and create an unappealing finish. Therefore, performing the final sanding with the grain is the ideal method to ensure a clean, attractive result.