Universal Design Score Calculator

Accessibility scoring beyond ADA minimum for inclusive design.

Min door clear width (in)

Min corridor width (in)

Turning radius (in)

Lever/auto hardware (%)

Variable-height counters (0/1)

Wayfinding features (0-5)

Tab to move between fields

Universal Design score (0-100)

76.5

Rating tier (0-4)

Meets ADA minimum (0/1)1

Door width score80

Corridor width score85

Turning space score60

Hardware score80

Counter flexibility score90

Wayfinding score60

Areas needing improvement2

How to Use This Calculator

Enter Min door clear width (in), Min corridor width (in), and Turning radius (in).
Set Lever/auto hardware (%), Variable-height counters (0/1), and Wayfinding features (0-5).
Review Universal Design score (0-100) and Rating tier (0-4).
Use Meets ADA minimum (0/1) and Door width score to inform your decision.

How the result changes with Min door clear width (in)

Min door clear width (in): Narrowest clear door opening. ADA min 32", UD target 36"+.
Min corridor width (in): Narrowest corridor. ADA min 44", UD target 60"+ for two-chair passing.
Turning radius (in): Smallest wheelchair turning space diameter. ADA min 60".
Lever/auto hardware (%): Percentage of doors with lever handles or automatic openers.
Variable-height counters (0/1): 1 = counters at multiple heights (28-42"), 0 = single fixed height.
Wayfinding features (0-5): Count of: visual signs, tactile cues, auditory cues, color contrast, braille.

Universal Design score (0-100): Weighted composite score across all accessibility dimensions.
Meets ADA minimum (0/1): 1 = meets ADA minimum clearances, 0 = does not.
Rating tier (0-4): 0=Below standard, 1=Bronze (ADA), 2=Silver (UD), 3=Gold (exceeds UD), 4=Platinum (exemplary).
Door width score: Score for door clearance adequacy.
Corridor width score: Score for corridor width adequacy.
Turning space score: Score for wheelchair turning radius.
Hardware score: Score for accessible door hardware.
Counter flexibility score: Score for variable-height work surfaces.
Wayfinding score: Score for multi-sensory wayfinding features.
Areas needing improvement: Number of categories scoring below 80.

Identify Input Parameters
4 parameters
Min door clear width (in) = 36, Min corridor width (in) = 60, Turning radius (in) = 60, Lever/auto hardware (%) = 80 = 6 input(s) provided
Calculate Universal Design score
Universal Design score = doorScore * weights.door +
76.5 = 76.5
Calculate Rating tier
3 = 3
Calculate Meets ADA minimum
Meets ADA minimum
1 = 1
Calculate Door width score
Door width score
80 = 80