or just "melamine" as an adjective. You failed to give the actual Italian text. I should forget the "structure" part or the "facing", a) because melamine is not structural at all and b) the only thing you can do with melamine in the sense of a laminate is to stick it on wooden boards.
They might mean structure in the sense of a wardrobe made of melamine panels, but they would only use melamine on the visible surfaces.
In another life many years ago I once made wardrobes, but only used melamine for surfaces in kitchens.

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Note added at 1 hr (2013-07-21 09:59:43 GMT)
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"two sliding melamine doors" or "sliding doors, ... in melamine (wood)". An English advertiser would put the type of wood, pine, teak, mahogany and never "wood".

https://www.google.com/search?source=ig&rlz=&q="melamine doo...

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Note added at 4 hrs (2013-07-21 13:06:31 GMT)
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"Probably they mean" on thst basis your translation would be "probably right" Reading more carefully, you really do need to see the wardrobe. if it is a wardrobe and not a cupboard. Either way the whole of the front of a cabinet usually consists of doors or drawers and these are the most decorative parts. The door frames are usually mostly hidden by the doors. I imagine this is a brochure with pictures. It is so much easier to translate with the pictures, generally because what the client needs is a good an accurate brochure rather than an accurate translation.