Recomposed back-to-back culm halves, trimmed to equal width.

Flat-sawn to equal thickness by DEE Chiang Rai, Thailand.
Full dimensional standard of upright, trimmed width, slats joined by round bamboo dowels.
A buckling resistant strut with dimensional standard.
A Space Frame structure has, simply by its geometry, two grids separated by “pyramids”, fully standardized dimensions. Example from Parametric design with Rhino/Grasshopper.
Industrial-made doors and windows, mostly with straight edges, are difficult to combine with the natural curvature of bamboo poles.
To combine the best of the two worlds - a comfortable aluminium window, easy to lock, mosquito safe … - and the beauty of a softly curved bamboo culm, you can place a few intermediate pieces of wood in between.
Limited cuts in the bamboo, without jeopardizing the structural integrity, will allow for screw access from all sides.
Some gaps still remain, but are easily stuffed with foam rubber strips or better, natural fibers.
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