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Description This rigidised Gypframe UltraSTEEL channel supports Gypframe MF ceiling sections at perimeters, establishing the ceiling level. It has a wider lower flange to make fixing support channels easier, and to provide a wider base for screw-fixing board edges. Features & Benefits Unique UltraSTEEL rigidisation Wider flange for easy screw-fixing Strong support for primary channel and board edges at room perimeters BES 6001 ‘Excellent’ rating