Steel Construction Durable White Powder Coated Finish This access panel is perfect for concealing plumbing, electrical and audio equipment in walls This access door easily installs in drywall, stucco or masonry walls. Install with standard white finish or easily paint to match your decor. This steel access door has a white powder coated finish. Perfect for interior walls where access is needed to plumbing. This access panel can be installed in drywall, stucco or masonry walls.