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Calcimator

Collection Storage Calculator

Calculate storage capacity, utilization, and space requirements for museum collections by storage type.

Inputs

Results

Maximum object capacity

133

Current utilization (%)100%
Remaining capacity (objects)0
Net storage area (sq ft)534
Sq ft per object4
Total space needed (sq ft)2,857
Buildout cost (low estimate)$128,571.00
Buildout cost (high estimate)$342,857.00
How to Use This Calculator
  1. Enter Total room area (sq ft), Storage type, and Number of objects.
  2. Set Aisle width (inches) and Perimeter climate buffer (ft).
  3. Review the Maximum object capacity result.
  4. Use Current utilization (%) (%) and Remaining capacity (objects) to inform your decision.

How the result changes with Total room area (sq ft)

Total room area (sq ft)Maximum object capacity
10,0001,612
35,0005,865
65,00011,020
90,00015,332

What each input means

Total room area (sq ft)
Total square footage of the storage room.
Storage type
1 = Open shelving/screens (4 sq ft/obj); 2 = Compact racks (2); 3 = Cabinets/drawers (1); 4 = High-density automated (0.5).
Number of objects
Current or planned number of objects to store.
Aisle width (inches)
Width of access aisles. ADA minimum is 36"; best practice is 42"-48" for carts.
Perimeter climate buffer (ft)
Distance from exterior walls to keep storage away from temperature fluctuations.

What each result means

Maximum object capacity
Maximum number of objects that fit in the available net storage area.
Current utilization (%)
Percentage of storage capacity currently used.
Remaining capacity (objects)
How many more objects can be accommodated.
Net storage area (sq ft)
Usable storage area after aisles and climate buffer.
Sq ft per object
Space allocation per object for the selected storage type.
Total space needed (sq ft)
Gross room area needed to store your object count (incl. aisles and buffers).
Buildout cost (low estimate)
Estimated buildout cost at $45/sq ft (basic museum storage).
Buildout cost (high estimate)
Estimated buildout cost at $120/sq ft (climate-controlled archival storage).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Total room area (sq ft) = 1000, Storage type = 1, Number of objects = 500, Aisle width (inches) = 42 = 5 input(s) provided
  2. Calculate Maximum object capacity
    Maximum object capacity
    133 = 133
  3. Calculate Current utilization
    100 = 100%
  4. Calculate Remaining capacity
    Remaining capacity
    0 = 0

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