Description guide for plastic H joining section unequal: 1st internal Depth 'Board Size' - 2nd external top width - 3rd external bottom width - 4th thickness | M = metres, mm = millimetres
Plastic H joining (unequal) section profiles can also be used for covering & joining boards & partitions.
We use UK external grade rigid PVC to manufacture H Joining products. See also our range of H Joining Sections