Room DimensionsFloor

Area

Ceiling

Area

Total Exterior

Wall AreaDoor Area

Total Window

Area

*Net Wall

Area

Assumed #

of People

CFM per

Room

Reception Room 16'-6" X 16' 272 272 312.75 21 42 249.75 3 45

North West corner 3'-9" X 2'-3"

Office No. 1 12'-6" X 14'-6" 190 190 130.5 0 14 116.5 2 30

South East corner 2'-3" X 3'-9"

Office No. 2 12'-0" X 16'-6" 211 211 256.5 0 28 228.5 2 30

Closet 2'-3" X 5'-9"

Office No. 3 16'-0" X 12'-6" 200 200 256.5 0 28 228.5 2 30

Open Office 14'-0" X 12'-6" 175 175 126 0 14 112 2 30

Storage 6'-0" X 12'-6" 75 75 54 0 14 40 1 15

Restroom Room 10'-3" X 6'-0" 61.5 61.5 146.25 21 14 111.25 56

Hallway 3'-6" X 15'-9" 55 55 0 0 0 0 1 15

Closet 2'-3" X 2'-0"

Assumed 15 cfm per person for all spaces, and 100 sq/ft per person (rounded to the nearest hundred)

Restroom Room - Assumed 6 air changes per hour (ACH). Cfm = ACH*(room volume/60 min)

cfm (cubic feet per minute) = 6 ACH *((10.25*6*9)/60) = approx. 56 cfm

Building Area by Room

Notes*Net wall area is calculated as (exterior wall area - window area - door area)

Wall - floor to ceiling height = 9 ft

Floor - Slab on grade (assumed perimeter edge loss coefficient = 0.52 Btu/hr-F-ft length)

All floor, ceiling, window and wall area calculations are estimates in decimal form that can be converted to ft-in/sq