Robot vacuums for very high thresholds: which fit and why
Botsize ran every robot vacuum in its dataset through the finder for a home with 30 mm (1.18 in) thresholds. The verdicts below follow your region, and each card shows the numbers behind its verdict.
Updated
Results for buyers in the US
The home behind this page
Tallest threshold
1.18 in (30 mm)
Climb for a clear pass
1.26 inyour threshold plus 0.08 in; a climb from 1.18 in up to that is tight
Lowest US price first, then the larger threshold margin, then the lower robot. Models without a US price come after priced ones. Suction never decides the order: makers measure it in different ways.
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Fits15
Every check passes with room to spare, and nothing rules the model out.
This page ranks the 37 robot vacuums in the Botsize dataset that are sold in the US. Prices are the maker's list price, or the price its page showed that month (sometimes a sale price), with the month we read it.
A 30 mm threshold
At 30 mm (1.18 in) the threshold starts to rule models out. A robot passes with a published climb of 32 mm (1.26 in) or more, and 15 of the 31 records that publish a climb reach it. A robot rated for 30 mm (1.18 in) or 31 mm (1.22 in) is tight.
The figure Botsize stores is the tallest single step the maker states. Several pages also quote a much larger figure for two steps in a row; that number does not apply to a single doorway, and the finder ignores it.
Before you pay for climbing height, measure again. A step of 30 mm (1.18 in) is tall for a doorway, and a reading taken from the higher floor, or on top of a rug, can be off by several millimeters. If the step is real and you prefer a lower robot, a threshold ramp turns it into a slope; then enter the step the ramp leaves. The threshold guide shows how to measure.
Questions about 30 mm thresholds
A product page says the robot climbs 80 mm or more. Why does it not count?
Those figures are for two steps in a row, measured under the maker's conditions. The single step figure is the one that matches a doorway, and it is the one the finder compares with your threshold.
Why are some well known robots under needs a check?
Their makers publish no climb height. The finder will not pass or fail a robot on a number it does not have, so it lists them for you to check in the manual.