Aluminum stretchers

I am working on a canvas painting (5.5 m x 2.8 m) that is today
mounted without a stretcher. A new stretcher made of wood of this
size has a weight of approximately 40kg. I would like to get some
ideas on where I could get a customized aluminum stretcher, and the
approximate. weight of a stretcher made of aluminum. Does anyone
have any good tips and ideas they could share on this topic?

Nina Ryder Kjolsen,
Paintings conservator NKF-N
NIKU The Norwegian Institute for Cultural Heritage Research
Oslo, Norway


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                  Conservation DistList Instance 24:1
                  Distributed: Thursday, May 20, 2010
                        Message Id: cdl-24-1-021
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