# Building area calculation: total? What’s half the plan? Not counting? I got it! [project budget cost]

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Source: there are many building area calculation data in the code for calculation of building area (GB / t50353-2013) issued by Luban union of construction engineering

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Which one calculates the full area? Which is half the area? Which do not calculate the area? It’s easy to confuse, the following is a summary of the relevant data of building area calculation, for your reference! 1、 Calculation of the total area 1

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The building area of the building, the height of the structure layer is 2.20M and above 2

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The height of the structure layer is 2.20M and above for some floors (with enclosure, the height of the structure layer is 2.20M and above for those without enclosure)

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3

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The height of the structure layer is 2.20M and above for the overhead layer of the building and the overhead layer of the hanging foot on the slope

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4

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The height of the structure layer is 2.20M and above for the corridors set in the hall and lobby

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5

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Basement, semi basement, structure The floor height is 2.20M and above 6

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The door bucket has enclosure structure, and the structural floor height is 2.20M and above 7

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The structural floor height of staircase, water tank room and elevator machine room with enclosure structure on the top of the building is 2.20M and above 8

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The structural floor height of equipment layer, pipeline layer, refuge layer and other floors with structure layer in the building is 2.20M and above 9

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The slope roof forming the building space, and the structural net height is more than 2.1m10 The clear height of the building space under the grandstand is more than 2.1m11

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The enclosure structure is not perpendicular to the horizontal floor, and the clear height of the structure is 2.10m and above 12

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The area of the lighting well with top cover should be calculated as one floor, and the clear height of the structure is 2.10m and above 13

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The structural floor height of the stage lighting control room with enclosure structure is 2.20M and above 14

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The floor window attached to the external wall of the building, and the structural floor height The balcony in the main structure is 2.20M and above

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The overhead corridor between buildings has top cover and enclosure facilities

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2

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Calculate half of the area

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1

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The building area of the building and the height of the structural floor is below 2.20M

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2

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The height of the structural floor of some floors is below 2.20M

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3

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The height of the overhead floor of the building and the empty floor of the slope scaffold is below 2.20M

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4

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The corridor in the hall and the hall is below 2.20M The height is below 2.20M 5

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Basement, semi basement, and the height of structural floor is below 2.20M 6

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The door bucket has enclosure structure, and the height of structural floor is below 2.20M 7

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The height of staircase, water tank room and elevator room with enclosure structure on the top of the building is below 2.20M 8

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The height of structural floor such as equipment floor, pipeline floor and refuge floor is below 2.20M 9

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There is enclosure structure The height of floor type window attached to the external wall of the building is less than 2.20 M

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the height difference between the windowsill and the indoor floor is less than 0.45 m, and the net height of the structure is 2.10 m or more

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The width from the outer line of the structure of the porch, column awning and pillarless awning to the outer line of the external wall structure is 2.10 m or more 14

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The area of lighting well with top cover should be calculated according to the area of one floor, and the area with top cover should be less than 2.10 M

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15

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The sloping roof forming the building space, with the clear height of 1.2-2.1 M

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16

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The building space under the stadium stand, with the clear height of 1.2-2.1 M

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17

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The stadium stand with top cover but without enclosure structure 18

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The ramp outside the entrance and exit wall, with top cover Part 19

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Overhead corridor between buildings, without enclosure structure and with enclosure facilities 20

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Outdoor corridor with enclosure facilities (cantilevered corridor) and eaves corridor with enclosure facilities (or columns) 21

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Outdoor staircase 22

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Balcony outside the main structure 23

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Car shed, goods shed, station, gas station and toll station with top cover and without enclosure structure 3

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Area not calculated 1

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Sloping roof forming building space, structure net The height of the building is less than 1.2m2

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The clear height of the building space under the grandstand is less than 1.2m3

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The enclosure structure is not perpendicular to the horizontal floor, and the clear height of the structure is less than 1.20m

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4

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The building components that are not connected with the building 5

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The open public space and building passageway on the ground floor of the arcade and the Cross Street Building 6

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The flyover and cantileverer with curtain and scenery hanging on the stage and backstage 7

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The terrace, outdoor swimming pool, flower rack and roof 8

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Operation platform, feeding platform, installation box and tank body platform in the building 9

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Plinth, wall column, stack, step, wall plastering, decorative surface, inlay block material surface, decorative curtain wall, outdoor unit shelf (box), components and accessories outside the main structure, pillarless awning with width less than 2.10m and top cover with height up to or less than 2.10m Pillarless awning with more than two floors 10

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Convex (floating) window with height difference between windowsill and indoor ground less than 0.45M and clear structural height less than 2.10m, convex (floating) window with height difference between windowsill and indoor ground more than 0.45M 11

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Outdoor climbing ladder and outdoor special fire steel staircase 12

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Sightseeing elevator without enclosure 13

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Underground civil air defense passage outside the building, independent chimney, flue, trench and oil pipe (water) tank, gas holder, water tower, oil (water) storage tank, storage bin, trestle and other structures make project budget

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Settlement project budget, settlement, quota, calculation group price, tender preparation (Engineering, procurement, service), construction organization design, completion data preparation, drawing design, house decoration budget, project cost consultation

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