50/50 sometimes refers to the awning cloth you were talking about. It is 50 cotton ant 50% acrylic or a nylon base. It comes 36" to 60" or more wide. Comes in many colors.
And it is more expensive than the treated Sunforger that is used in most tipis.
Peter Boyle Canvas is one supplier. Best thing is to call up a boat and/or awning manufacturer in your area and see what they have. Hope you have an Industrial sewing machine.
tipis
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