Balcony railings yuav tsum tau tsim los tiv thaiv cov menyuam yaus los ntawm kev nce toj, thiab qhov kev ncua deb ntawm cov kab ntsug yuav tsum tsis pub tshaj 0.11 meters.
Ua ntej, cov qhov rais qis qis yog li 0.5 meters los ntawm hauv av. Ntxiv 0.4-meter railing lossis laj kab ze rau ntawm phab ntsa sab hauv yuav ua tau raws li cov qauv kev nyab xeeb uas xav tau. Yog hais tias lub qhov rais sill loj heev, xws li lub qhov rais bay, cov me nyuam feem ntau sawv ntawm lub sill saib, thiab cov neeg siv yuav tsum tau sawv ntawm lub qhov rais qhib lub qhov rais. Nyob rau hauv cov ntaub ntawv no, lub railing txuas rau lub qhov rais sill yuav tsum muaj tsawg kawg yog 0.9 meters siab.
Qhov siab ntawm lub sam thiaj lossis balustrades yuav tsum tsis pub tsawg tshaj 1.05 meters rau lub tsev ntawm rau 6 zaj dab neeg lossis tsawg dua; thiab tsis pub tsawg dua 1.10 meters rau cov tsev ntawm xya zaj dab neeg lossis ntau dua. Tsis tas li ntawd, cov khoom balustrades raug pom zoo rau cov tsev ntawm xya zaj dab neeg lossis ntau dua thiab rau cov tsev nyob hauv cheeb tsam txias lossis txias heev. Tau kawg, qhov chaw sib txawv yuav muaj qhov siab sib txawv. Piv txwv li, qhov siab ntawm lub sam thiaj railing nyob rau hauv kindergarten yuav txawv ntawm qhov hauv tsev. Yog li ntawd, qhov no yuav tsum tau txiav txim siab thaum koj xaiv.