In addition to the floor perforation, the dimensions of the HTWD-DIN wiring channel also comply with EN 50085. The webs and side walls can be easily and cleanly broken out at predetermined breaking points. The wiring channels, with a minimum construction height of 75 mm, have additional retaining tabs to prevent the wiring from slipping. A double-sided adhesive tape, factory-installed on the bottom of the channel, provides flexibility in channel mounting.