Not every front door step is the same. Measure first, choose after. The right ramp length depends on three things: total step height, available landing space, and the user and mobility aid being used.

MIOR ROLL on a single step. MIOR indication: 1.2 m (approx. 4 ft). Always measure your specific situation.
You have one step at your front door, side entry or porch — typically 16–18 cm (approx. 6–7 inches) high. You need a portable ramp shown as a practical indication for a manual wheelchair with assistance; other mobility aids require a situation-specific check. Without fixed installation in many temporary situations; always check rental, shared-space or local requirements where relevant.
A single step is the most common access barrier in US homes. The right ramp can help improve access without construction costs. Choosing the wrong length — too short — creates a slope that is difficult to manage. Choosing too long wastes space. Measure first.
Practical MIOR Indication
Typical step height
16–18 cm (approx. 6–7 in)
Practical MIOR indication
1.2 m (approx. 4 ft)
Use case
manual wheelchair with assistance — single step entry
1:12 comparison (ADA reference)
1.92–2.16 m
These examples are intended as practical MIOR indications. The correct ramp length depends on the exact height, available space, user, mobility aid and intended use. For more comfortable or guideline-aligned use, a longer ramp may be needed.
For one step of 15 cm (6 inches), the 1:12 comparison gives: 15 × 12 = 180 cm (approx. 6 ft). This ratio means 12 cm of ramp length per 1 cm of height difference. Steeper slopes (1:8) may be possible for lightweight manual chairs on low steps, but 1:12 is the ADA reference for more manageable use.
Use WEXAR to measure your step height and available space with your smartphone — free, no account required. WEXAR gives you a digital indication of which ramp length fits your specific situation, so you can order with confidence instead of guessing.
📱 Learn more about WEXAR →The MIOR ROLL is a roll-up aluminum ramp — lightweight, portable and available in multiple lengths. For a single step entry, it can be laid down in seconds and rolled up after use. No tools. No installation. Works on thresholds, stoops and single steps at home or on-site.

Rolls up for compact storage. No installation required.
The required length depends on step height, available space, user and mobility aid. As a reference: the 1:12 guideline gives 12 cm (approx. 5 in) of ramp length per 1 cm (0.4 in) of height. Use the MIOR calculator or WEXAR for a digital indication based on your specific situation.
That depends on the weight of the device, the slope, and available width. Use the calculator to check whether the slope is feasible for your specific mobility aid.
No. The MIOR ROLL is portable — it lays flat against the step and can be rolled up and stored after use. No drilling or adhesive required. Always check rental, shared-space or local requirements where relevant.
The ADA reference guideline for accessible ramps is a maximum slope of 1:12 — meaning 12 inches of ramp for every 1 inch of rise. This is a reference, not a legal requirement for residential private use. The right slope depends on your specific user and mobility aid.