The UD 28/27/0.4 is a ceiling guide profile designed for the peripheral fixing of drywall frames and false ceilings. Made from galvanized steel, this 4-meter long component features a width of 28 mm, a height of 27 mm, and a thickness of 0.4 mm, providing a stable base for suspended structures. Its corrosion-resistant finish makes it a reliable choice for builders and renovators who need a precise, durable perimeter support for gypsum board installations.