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Calcimator

Shade Structure Calculator

Size shade sails, canopies, or shelters for playground UV protection — accounts for sun angle, latitude, coverage target, and mounting height.

Inputs

%

Results

Required canopy area (sq ft)

1,108.01

Estimated cost ($)

$24,930.00

≈ 12 gaming PCs

Target shade area (sq ft)1,000
Structures needed2
Support posts8
Foundation concrete (cu yd)10.67
Shadow offset (ft)3.3
UV blocked (%)98%
How to Use This Calculator
  1. Enter Play area (sq ft), Shade coverage target (%), and Structure type.
  2. Set Mounting height (ft) and Site latitude (°N).
  3. Review Required canopy area (sq ft) and Estimated cost ($) ($).
  4. Use Target shade area (sq ft) and Structures needed to inform your decision.

How the result changes with Play area (sq ft)

Play area (sq ft)Required canopy area (sq ft)Estimated cost ($)
5,0902,715.65$61,102.00
17,5659,097.14$204,686.00
32,53516,694.72$375,631.00
45,01023,007.01$517,658.00

What each input means

Play area (sq ft)
Total playground area you want to partially shade.
Shade coverage target (%)
Percentage of play area to shade. CDC recommends 40-60% for playgrounds.
Structure type
0 = Shade sail, 1 = Hip roof canopy, 2 = Cantilever umbrella, 3 = Permanent shelter.
Mounting height (ft)
Height of the shade structure above ground. 10-14 ft typical.
Site latitude (°N)
Latitude for sun angle calculation (e.g., Denver = 39, Miami = 26, Seattle = 47).

What each result means

Target shade area (sq ft)
Ground-level area to be shaded based on your coverage target.
Required canopy area (sq ft)
Canopy size needed to achieve target shade, adjusted for sun angle.
Structures needed
Number of shade structures required.
Support posts
Total support columns/posts needed.
Foundation concrete (cu yd)
Concrete volume for post footings (3×3×4 ft each).
Shadow offset (ft)
How far the shadow shifts from directly below at summer noon.
Estimated cost ($)
Total installed cost estimate at market average rates.
UV blocked (%)
UV radiation blocked by the shade material (UPF 50+).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Play area (sq ft) = 2000, Shade coverage target (%) = 50, Structure type = 0, Mounting height (ft) = 12 = 5 input(s) provided
  2. Calculate Required canopy area
    Required canopy area
    1108.01 = 1108.01
  3. Calculate Estimated cost
    24930 = $24,930
  4. Calculate Target shade area
    Target shade area = playAreaSqFt * (coveragePct / 100)
    1000 = 1000
  5. Calculate Structures needed
    2 = 2

Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.

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