20 by 20 plot? please if you'd want us to assist you, kindly provide a survey plan of your plot of land as we work with accurate dimensions to prevent errors!
If you hired a seasoned Engineer for this project and he's actively coming to site as the work progresses, then you have nothing to worry about! You could help us understand better if you sent us an image of your site too!
Those of cuts can be used to dress the eaves or small porch, small varandah, etc! This platform is managed by professionals in the field
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