Every opening gets its own survey
Width, height and plumb taken at four points per opening, then drawn individually.
If skippedOne drawing is reused for twelve openings, and each one is packed out differently on site.
Lift lobbies and door surrounds:
twelve openings,
twelve sizes
The smallest package we make and the least forgiving. Three trades meet at the same opening, and only one of them can re-cut a part.
Fabricated in 304 or 316L in our own factory in Foshan, then trial-assembled before packing.
- Order size
- 4–12 sets / shaft
- Lead time
- 25–40 days
- Drawing check
- 48 h
- Site cuts
- 0
01
Why lift lobbies are their own job
It is the smallest package on this site and the one where millimetres matter most, because three separate trades arrive at the same hole in the wall.
| Element | What it is | Hard part | Tolerance |
|---|---|---|---|
| Door surroundThree-sided frame around the lift opening | Folded channel with a return, fixed to the wall, no visible screws. | The wall is never square, and the surround must be. | Square to 1 mm over 2.2 m |
| RevealThe return from the surround into the wall | A narrow fold that sets the shadow line. | Its width is decided by the wall, not by the drawing. | Constant width ±0.5 mm |
| Lift front panelThe clad wall between and beside doors | Flat panel on a concealed frame, removable for service. | It must come off without damaging the finish, and go back flush. | Flush ±0.5 mm |
| Sill transitionWhere metal meets the stone floor | A folded trim or a shadow gap, depending on the detail. | Two trades, two materials, moving at different rates. | Gap per approved detail |
| Call button plateThe small plate beside the doors | Small folded plate with cut-outs for buttons and displays. | It is at eye level and gets touched every day. | Edge burr-free, cut-out ±0.2 mm |
02
How a lift lobby runs
Fast, because there is little to argue about — provided the survey happens before cutting.
D0
Opening schedule in
Drawing team
Questions in 48 h
D1–6
Survey every opening
Measurer
Real width, height and plumb per shaft
D7–14
Shop drawings
Detailers
One drawing per opening, not per type
D15–26
Cut, fold, weld
Laser · brake · TIG
First-part check against survey
D27–34
Finish
Brush · mirror · PVD
Colour record per floor
D35–40
Trial fit and crate
Trial crew
Set assembled, numbered per shaft
"One drawing per opening" is the whole trick. Twelve openings are twelve sizes. A drawing per type means eleven of them are wrong, and the wrongness shows as a wedge-shaped shadow gap because that is where the fitter hid it.
03
What goes wrong in a lift lobby
The surround is assembled before packing
Three sides are joined and squared on our floor, so the corner is a made joint, not a site joint.
If skippedCorners are cut separately, meet at 2 mm open on site, and get filled — on the part everyone touches.
Returns are decided after the survey
The reveal width is set from measured wall thickness, so the shadow line stays constant.
If skippedThe reveal is drawn at nominal, the wall is thicker, and the shadow line tapers from 5 mm to 12 mm up the same door.
04
A lobby set we can show
12 sets against concrete 18 mm out of position.
FIG. 04.1Lift lobby after handover — three openings, one line
FIG. 04.2The same run, seen from the other end
FIG. 04.3Reveal width held at every opening
Send the drawing.
In 48 hours you get a price
and a list of problems.
PDF, DWG or DXF. You get a price, and a list of every detail we think will fail on site — whether you order or not.