Bamboo laid across Redwood,

 2x4" Purlins, 4X8" Beams

   Beautiful Shadows ...

 and Beautiful Color, but soon the bamboo fades to grey.

 The hard cane is very durable outdoors and will last for years, especially when rolled up in the fall and stored

when you don't need the shade.

   Shadows with a 75% Cool Shade factor.