How to Measure for a Ramp: Home Use vs. ADA Compliance – Med Mart

Step-by-Step Guide to Choosing the Right Ramp Length and Slope

When installing a ramp for a home or public space, getting the measurements right is critical for both safety and ease of use. Whether you're accommodating a loved one using a mobility device or need to meet ADA (Americans with Disabilities Act) standards for public access, this guide will walk you through how to measure for the correct ramp length.

Step 1: Measure the Vertical Rise

Start by measuring the vertical rise, which is the height from the ground to the top surface you need to reach (such as a porch, step, or threshold).

Use a tape measure to record the straight vertical distance from the ground to the entry point.
This measurement, in inches, will help you determine the proper ramp length.

Step 2: Determine the Use Case

For Home Use (Residential Guidelines)

For residential applications, a steeper ramp is often acceptable—especially when space is limited or if a caregiver is available to assist.

Residential slope recommendation: 1:6 to 1:8
This means for every 1 inch of rise, plan for 6 to 8 inches of ramp length

Example:
If you have a 12-inch rise:

12 x 6 = 72 inches (6 feet)
12 x 8 = 96 inches (8 feet)
A ramp between 6 and 8 feet would be suitable depending on mobility needs and whether assistance is available.

Best for:
Private homes, temporary ramps, or short distances

For ADA-Compliant Use (Public/Commercial Spaces)

If you’re installing a ramp for public or commercial use—or for long-term accessibility at home—ADA guidelines must be followed.

ADA-required slope: 1:12
This means for every 1 inch of rise, you need 12 inches (1 foot) of ramp length

Example:
If you have a 24-inch rise:

24 x 12 = 288 inches
288 ÷ 12 = 24 feet of ramp

Best for:
Businesses, public buildings, schools, long-term home installations

Step 3: Consider Space and Accessibility Needs

Before purchasing or installing your ramp, take into account:

Available space for a straight or turning layout
Entryway width to ensure the ramp fits door openings or thresholds
Need for platforms (required for rises over 30 inches in ADA-compliant settings)
Mobility equipment used (scooter, wheelchair, walker) and turning radius

Ramp Sizing Quick Reference Chart

Rise (inches)	Home Use (1:6)	Home Use (1:8)	ADA-Compliant (1:12)
6"	3 ft	4 ft	6 ft
12"	6 ft	8 ft	12 ft
18"	9 ft	12 ft	18 ft
24"	12 ft	16 ft	24 ft

Need Help Finding the Right Ramp?

At Med Mart, we offer a variety of ramps including portable, modular, threshold, and ADA-compliant models. If you're unsure what size or type is best, our product specialists are happy to assist.

Call us at 888-413-8994 or visit medmart.com to browse ramp options and get expert support.

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