Why Metric Numbers, Not Imperial Averages<\/h2>\n
M\u00e1s ascensor dom\u00e9stico<\/a><\/strong><\/span> dimension guides are written in feet and inches around ANSI A17.1, the US elevator safety code, which is the right reference for a North American new-build project. That leaves a gap for overseas retrofit buyers working from architectural drawings in millimeters, especially anyone evaluating a narrow-shaft configuration that doesn’t map cleanly onto a standard US shaft size. The numbers below are JDRK’s own published minimums, in metric, for exactly that use case.<\/p>\n Anywhere this table says “not published,” that’s a real gap in JDRK’s current spec sheet rather than an estimate \u2014 confirm those figures directly before finalizing a floor plan around them.<\/p>\n This is JDRK’s standard home\/villa line, built around a proportional valve system rather than a rope-and-counterweight setup. The 1,100\u00d71,100mm minimum shaft is the smallest footprint the line has been engineered for; going narrower isn’t offered on this product. Two numbers matter more than the shaft footprint itself for most retrofits: the 2,600mm minimum top clearance, which rules a low-ceiling attic or top floor in or out before anything else gets measured, and the 150mm minimum pit depth, with a zero-pit configuration available where excavation isn’t practical.<\/p>\n This line exists specifically for spaces too tight for a standard elevator shaft. The 900\u00d7900mm minimum footprint is roughly 20% smaller by width and depth than the hydraulic line’s minimum, which is the difference between fitting inside an existing stairwell versus needing new construction. Rated load runs about 250\u2013320 kg depending on configuration, and the platform supports shallow-pit or pitless installation. Power can run on standard single-phase 220V, which matters for markets where three-phase industrial power isn’t readily available at a residential address.<\/p>\n Homeowners researching dimensions often treat the shaft footprint and the usable cab interior as the same number, and they aren’t. The shaft figures above are the minimum structural opening the elevator needs; the actual cab interior is smaller once wall thickness, guide rails, and (for the hydraulic line) the safety systems \u2014 light curtain, overspeed governor, safety gear \u2014 are accounted for. JDRK doesn’t publish a separate cab-interior dimension on either line’s current spec sheet, so if usable interior space is your deciding factor rather than shaft footprint, that’s a number to request directly rather than infer from the shaft size.<\/p>\n The 900\u00d7900mm line is designed around five specific space types, not a generic “small elevator” category:<\/p>\n Matching your floor plan to one of these five categories is usually faster than starting from a blank shaft-size calculation, since each type comes with its own structural head start.<\/p>\n JDRK doesn’t publish pricing for either line \u2014 every product page leads to a quote request rather than a listed price. Since dimensions are the main variable that changes cost between a standard shaft and a narrow-shaft platform, submitting your measured shaft size, pit depth, and clearance with your quote request is what gets you an accurate number instead of a placeholder range.<\/p>\n A: JDRK’s narrow-shaft Lift Platform line is built around a minimum footprint of about 900\u00d7900mm, versus roughly 1,100\u00d71,100mm for the standard Hydraulic Domestic Elevator.<\/p>\n A: The Lift Platform line is specifically designed for five space types, including stairwells and under-stair niches, so a dedicated new shaft isn’t always required.<\/p>\n![](\"https:\/\/jdrkcn.com\/wp-content\/uploads\/2025\/07\/1_0005_1.webp\")
<\/p>\nShaft Size Reference Table<\/h2>\n
\n\n
\n Dimension<\/b><\/strong><\/td>\n Hydraulic Domestic Elevator<\/b><\/strong><\/td>\n Lift Platform (Narrow-Shaft Line)<\/b><\/strong><\/td>\n<\/tr>\n \n Minimum shaft footprint<\/td>\n ~1,100 \u00d7 1,100 mm<\/td>\n ~900 \u00d7 900 mm<\/td>\n<\/tr>\n \n Minimum top clearance<\/td>\n 2,600 mm<\/td>\n Not published \u2014 confirm per project<\/td>\n<\/tr>\n \n Minimum pit depth<\/td>\n 150 mm (zero-pit option available)<\/td>\n Shallow-pit \/ pitless supported (exact minimum not published)<\/td>\n<\/tr>\n \n Rated load<\/td>\n Not published for this line<\/td>\n ~250\u2013320 kg, depending on configuration<\/td>\n<\/tr>\n \n Sala de m\u00e1quinas<\/td>\n Not required<\/td>\n Not required<\/td>\n<\/tr>\n \n Counterweight<\/td>\n None (~70% shaft space utilization)<\/td>\n Not published<\/td>\n<\/tr>\n \n Power supply<\/td>\n Not published for this line<\/td>\n Optional 220V single-phase<\/td>\n<\/tr>\n \n Suited installation types<\/td>\n General home\/villa shafts<\/td>\n Stairwells, corners, light wells, external steel towers, under-stair niches<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n The Hydraulic Domestic Elevator, in Detail<\/h2>\n
The Narrow-Shaft Lift Platform, in Detail<\/h2>\n
Cab Size Is Not Shaft Size \u2014 A Common Mix-Up<\/h2>\n
![\"Ascensor](\"https:\/\/jdrkcn.com\/wp-content\/uploads\/2025\/07\/01-29.webp\")
<\/p>\nWhere a Narrow-Shaft Platform Actually Fits in a Floor Plan<\/h2>\n
\n
How to Measure Before You Request a Quote<\/h2>\n
\n
![](\"https:\/\/jdrkcn.com\/wp-content\/uploads\/2025\/07\/1_0004_2.webp\")
<\/p>\nPricing<\/h2>\n
FAQ<\/h2>\n
Q: What’s the smallest shaft a home elevator can fit into?<\/h3>\n
Q: Do I need a full elevator shaft, or can it go in my stairwell?<\/h3>\n
Q: How deep does the pit need to be?<\/h3>\n