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Calcimator

Furniture Space Standards Calculator

Workstation and furniture clearances from GSA/BIFMA standards.

Inputs

%

Results

Maximum capacity

21

Area needed - gross (sq ft)

1,829

Sq ft per person (standard)64
Net usable area (sq ft)1,400
Area surplus/deficit (sq ft)171
Primary aisle width (in)60
Secondary aisle width (in)44
ADA accessible stations1
Density rating (0-3)3
Furniture zone area (sq ft)1,390
How to Use This Calculator
  1. Enter Total area (sq ft), Space type (0-5), and Planned occupants.
  2. Set ADA required (0/1), Density (0=generous, 1=standard, 2=dense), and Circulation (%).
  3. Review Maximum capacity and Area needed - gross (sq ft).
  4. Use Sq ft per person (standard) and Net usable area (sq ft) to inform your decision.

How the result changes with Total area (sq ft)

Total area (sq ft)Maximum capacityArea needed - gross (sq ft)
50,0455471,829
175,0331,9141,829
325,0183,5541,829
450,0054,9211,829

What each input means

Total area (sq ft)
Gross floor area available for the space.
Space type (0-5)
0=private office, 1=open workstation, 2=conference, 3=reception, 4=break room, 5=library.
Planned occupants
Number of people to accommodate.
ADA required (0/1)
1 = ADA-compliant clearances required.
Density (0=generous, 1=standard, 2=dense)
Space allocation preference per person.
Circulation (%)
Percentage of floor area dedicated to aisles and circulation.

What each result means

Sq ft per person (standard)
Space allocation per person based on type and density.
Net usable area (sq ft)
Usable area after subtracting circulation.
Maximum capacity
Maximum people the space can accommodate at selected density.
Area needed - gross (sq ft)
Total gross area needed for planned occupants.
Area surplus/deficit (sq ft)
Positive = surplus space, negative = insufficient space.
Primary aisle width (in)
Main circulation aisle width requirement.
Secondary aisle width (in)
Secondary/branch aisle width requirement.
ADA accessible stations
Minimum ADA-accessible workstations required (5% of total).
Density rating (0-3)
0=overcrowded, 1=dense, 2=standard, 3=generous.
Furniture zone area (sq ft)
Area available for furniture placement.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Total area (sq ft) = 2000, Space type (0-5) = 1, Planned occupants = 20, ADA required (0/1) = 1 = 6 input(s) provided
  2. Calculate Maximum capacity
    Maximum capacity
    21 = 21
  3. Calculate Area needed - gross
    Area needed - gross = areaNeededNet / (1 - circulationPct / 100)
    1829 = 1829
  4. Calculate Sq ft per person
    64 = 64
  5. Calculate Net usable area
    Net usable area = totalAreaSqFt * (1 - circulationPct / 100)
    1400 = 1400

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