More gratitude to the Danish National Museum, and their citizens who pay more than 50% in taxes to provide hobbyists like me with cool eye candy, among other good things.

So, this page and lots of other places describe the arrangement of Egtved Girl's string skirt thus:

The Egtved Girl was dressed in a striking cord skirt. It went down to her knees, was wound twice around her waist and was 38 cm long. This kind of skirt was in use throughout the Bronze Age. Some small female figures of bronze from Grevensvænge, Zealand, are also dressed in cord skirts. It has been suggested that the figures represent rituals that were performed at the cultic feasts of the Bronze Age. The women who were dressed in cord skirts may have performed ritual dances. Perhaps the Egtved Girl also took part in dancing rituals. 

Very helpfully, the Museum has provided some actual dimensions of the skirt, which apparently is:

Okay.  Reality check for actually constructing something that I will wear.  154 cm does not go twice around my waist, especially not worn low, as Olby suggests.  38 cm is not knee length.  (Knee length on me from hipbone is 52 cm, and twice around the waist would be more like 200 cm.)  This seems to be a smaller person.

Unfortunately, the general description that the Museum provides doesn't guess at a height for Egtved girl, not really surprising, since they don't have bones:

Of the girl herself only hair, brain, teeth, nails and a little skin remain. Her teeth reveal that she was 16-18 years old when she died. On her body she wore a short tunic and a knee-length skirt made of cords. A belt plate of bronze decorated with spirals lay on her stomach. She also had a comb made of horn with her in the grave, attached to her belt. Around each arm was a ring of bronze and she had a slender ring in her ear. By her face lay a small box of bark with a bronze awl and the remains of a hair net.

So.  Time to make the choices which make SCA "re-creation" and not "re-enactment" or "museum re-construction."  I'm researching this thing to have a cool dress accessory, to elicit neat conversations.  I don't ever have any plans to wear this garment alone, as was apparently done by the bronze figurines and Egtved Girl.  I fully intend to mash this outfit together with my Borum Eshoj-inspired pieces , and raise the blood pressure of the various costume nazis who have read up it.

I've put 2 yards of warp on my tabletweaving loom, which is about 180 cm.  I could make the skirt as a recreation of a historical object, which does not fit me according to one gravefind, but doesn't conflict with fit as shown in the art (the bronze figurines' skirts are far shorter than knee length).

I'm inclined to do this – because it'd be interesting to get a height for Egtved Girl by trying my skirt on various people.

Also, I'm inclined to trust art for representations as a whole – there's more examples, enabling comparison, whereas with one intact gravefind it just is what it is, and it's hard to draw conclusions, since almost certainly that one individual had personal circumstances that we can't even guess at.

(Like the hairnet – why in front of her face and not on her head?  Is this an example of burying young people with the things they haven't earned in life yet?  But then what about the cremated child remains?Plot lines boil in my head, which is not the right attitude for investigation.  It does rather reinforce Barber's pan-European assertions about haircoverings and string skirts not being things that go together at this point in time.  Though you can bet if I figure out how to make the Borum Eshoj headdress I'll be trying it out together with everything else, regardless.)