wooden rafters lie on concrete beams, which are based on columns of foam blocks. preparation of the working space of the house

bars beam block boards brick bricklayer bricklaying build carcass carpentry ceiling cement column concrete construction cottage design engineer engineering equipment flooring form foundation frame framework hard house industrial industry installation installing joist joists lags lathing logs lumber mason measure modern mortar mounting object outbuilding overlap plank plywood process project rafter rafters rebar reinforcement repair residential rod roof roofing rooftop site skeleton slab structure surface system technology thread timber truss wall wood wooden