Which measurement actually decides the passage?
The relevant furniture measurement is the lowest unobstructed floor-to-underside clearance along the intended route. It is not the top of a cushion or the height of an arm. A furniture page that separately lists underside height illustrates the distinction; that other brand’s value cannot be assigned to a BoxSofa model.
How should I check the sofa’s lowest opening?
Ask for the exact SKU’s underside view and a measurement with the endpoints identified. Check the entrance, any lower rails or fabric, and the route inside, without placing yourself beneath unsupported furniture. If the base meets the floor, a dark edge in a photograph is not evidence of an opening. Keep unmeasured points marked unknown.

Which robot height should I use?
Use the robot maker’s height and clearance guidance for the operating mode you intend to use, including its highest projecting part. A retracted sensor setting, mop arrangement or chassis mode may be model-specific. Eufy’s guidance makes clearance dependent on the robot model; do not turn one maker’s figure into a universal minimum for every robot.
Can a rug, cable or narrow turn change the result?
Yes. The robot needs a usable approach, an entrance wide enough for the documented operating envelope, and a route it can leave again. A rug edge can change the surface level or approach; a hanging cable or lower internal part can obstruct it. Follow the robot maker’s keep-out instructions where passage is unconfirmed. Under-sofa access and space for a charging dock are separate questions.
What do the current BoxSofa dimensions tell me?
They establish the published furniture dimensions in the table, not robot clearance. YS002 Grey is listed as 261 × 171 × 58 cm overall; Teddy A has separate sofa/open-bed figures; Eggshell has width, backrest and unfolded figures. None of those labels supplies a verified underside passage. Compare the original product page and record the missing clearance separately rather than subtracting unrelated heights.
Can I add legs or lift the sofa to make space?
Do not assume a compressed foam sofa accepts replacement legs, blocks or a different support system. No such retrofit is established by the dimensions used here. Check the exact model’s instructions before any structural change; a seller’s general leg catalogue is not approval for another construction. If access is essential, choose only after documented clearance is available, or plan an appropriate separate cleaning method.
How does the original clearance worksheet work?
Fill the table for one chosen combination, with units, measurement points and the date. In a purely hypothetical example, an opening C of 100 mm minus a robot height R of 95 mm leaves a nominal 5 mm difference. That arithmetic does not establish the maker’s required allowance, internal route or real fit. Mark the conclusion unconfirmed until those checks agree.
What should I resolve before buying?
Ask for the model-specific underside dimension, lowest internal obstruction and support instructions, then compare them with your robot’s own documentation. Keep the worksheet beside the exact product links below. The rug-contact and seat-dimension guides answer different planning questions. The AI cover and four-step illustration are generic explanations, not product photographs, retrofit instructions or a robot trial.
| Record | Known label / entry | Meaning / remaining check |
|---|---|---|
| YS002 Grey | 261 × 171 × 58 cm | Underside clearance not established |
| Teddy A terracotta | Sofa 200 × 100 × 70 cm; open 200 × 200 cm; bed height20 cm | Underside clearance not established |
| Eggshell ivory | Width200 cm; backrest50 cm; open200 × 130 × 25 cm | Underside clearance not established |
| Your lowest opening C | ___ mm; points/date ___ | Entry and lowest point inside |
| Robot operating height R | ___ mm; model/mode ___ | Use the maker’s clearance requirement too |
| Width and full route | ___; rug/cable/exit ___ | A height comparison alone is insufficient |
| Hypothetical arithmetic only | 100 − 95 = 5 mm | Not a BoxSofa measurement or a fit threshold |
| Decision record | Confirmed requirement / unresolved ___ | No underside-access promise without evidence |
A practical checklist before you decide
- Identify the exact sofa SKU and robot model.
- Record the lowest opening and the documented operating height separately.
- Check width, internal obstructions, approach and exit.
- Keep unknowns open; decide from model-specific instructions, not the illustration.
Sources and applicable terms
General planning guidance, not a physical product or access test. The chosen variant's measurements and instructions take precedence. Terms can change; check them before payment.







