Description for H Sections: 1st internal Depth 'Board Size' - 2nd external widths - 3rd thickness | M = metres, mm = millimetres
H section joining strips 10mm can be used to join panels which are have a thickness of 10mm. H section joining strips 10mm has two equal legs and an unequal version is also available. We use external grade rigid PVC material to manufacture high quality plastic H trim in our UK factory.