There is no such criterion You can determine it based on the beam length and height variation."201968":vseygt94" said:1)We encounter the error that the minimum beam height cannot be less than 3 times the floor thickness at the end due to the floor thickness, Can we ignore this error due to the cantilever floor and gusset beam design? (For example, balcony floor 20 cm variable section beam height from 60 to 30 (30 end sections) ) You can ignore it according to TBDY Article 7.4.1.12) How many cm should the sectioned beam lengths be?