wegner halyard technique  

Actually...
The joining areas are crimped. Check out the pictures at PP Mobler (let them play through and you'll see the crimping being done) http://www.pp.dk/index.php?page=collection&cat=2&id=13.

Thanks so much, hadn't been...
Thanks so much, hadn't been on ppmobler for a while and thats a new feature.
Their image to illustrate, the rope doesn't look waxed.

Not waxed
It definitely seems like the halyard is natural. I've been very tempted to use it on some designs but I've always wanted to sit in that round chair and see what it felt like first. Unfortunately, not too many places are going to have that chair in stock...

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I want to try it too, fortunately its cheap by the metre. I wonder if a woven grid would stay in place or shift about?

I think it could stay in...
I think it could stay in place depending on how the intersections were fashioned. Most of the materials the danes used for seating (other than leather) are very inexpensive for the materials but require craftsmanship and time to execute...lot's of time.
Speaking of which, time to get back to weaving my chair, only a few thousand more feet of cane to sort and weave...