How to Properly Measure a Door Threshold Before Buying a Ramp

How to Properly Measure a Door Threshold Before Buying a Ramp

Before purchasing a threshold ramp, it is essential to accurately measure the door threshold. Incorrect measurements can result in a ramp that is too high, unstable, or creates an unsafe approach angle.

Step 1. Measure the Exact Threshold Height

The height should be measured from the floor or ground level to the highest point of the threshold. Use a measuring tape or a level for precise results.

• 2–4 cm – low threshold
• 5 cm – standard threshold
• 7–10 cm – high threshold

This measurement determines which rubber threshold ramp model is suitable for your needs.

Step 2. Check the Available Depth in Front of the Door

Make sure there is sufficient space in front of the door to install the ramp. The greater the depth, the smoother the incline angle.

If space is limited, choose a model with an optimized height-to-length ratio.

Step 3. Consider the Type of Door

Check the following:

• Will the ramp interfere with door opening?
• Is there a rubber seal at the bottom of the door?
• Is the threshold interior or exterior?

Step 4. Evaluate the Load Requirements

If the ramp will be used for:

• a wheelchair
• a baby stroller
• carts or trolleys with goods

— you should select a model with adequate load capacity.

A stationary rubber threshold ramp supports over 500 kg and is suitable for daily use.

Step 5. Check the Required Width

The standard usable width of DPR ramps is typically between 90–110 cm, depending on the ramp height. If it is necessary to reduce the width of the door ramp, a utility knife can be used to trim the rubber material carefully.

Common Measuring Mistakes

• Measuring from only one side
• Ignoring floor slope
• Not accounting for rubber door seals
• Choosing a ramp “by eye” without precise measurement

Recommended Models Based on Threshold Height

• DPR25 – 2.5 cm Threshold Ramp
• DPR38 – 3.8 cm Compact Threshold Ramp




• DPR50 – 5 cm Rubber Ramp for Wheelchair Access
• DPR64 – 6.4 cm Threshold Ramp




• DPR76 – 7.6 cm High Threshold Ramp




• DPR89 – 8.9 cm Heavy-Duty Rubber Ramp
• DPR102 – 10.2 cm High Threshold Ramp

Conclusion: Accurate threshold measurement is the foundation of safe access. A properly selected threshold ramp ensures comfort, stability, and long-term durability.