Why "how much per square metre" gets such different answers
The unit itself is ambiguous. Is that square metre of ground area or of roof area? Does it include the foundation and ground works? Are lighting, CCTV and fire equipment counted as part of the shelter or as separate items? Until these are aligned, two quotations are not comparable at all.
The more practical point is this: the money in a shelter project is usually not in the shelter itself, but in the foundation, the ground treatment and the service runs. Those are exactly the items most likely to be missing from an initial quote, and exactly the items you cannot skip during construction.
So this page deliberately does not give a single headline price. It does two things instead: it splits the cost into blocks you can actually read, and it tells you what to check line by line once a quotation lands on your desk.
Six variables that decide the cost
| Variable | What to look at | Why it moves the price | What it means for you |
|---|---|---|---|
| Structure type | Steel / membrane / polycarbonate | More steel and more complex shapes cost more; membrane is lighter but needs tensioning skills | At the same area, a different structural choice can shift you a whole bracket |
| Span and height | Single-span width, eave height | Wider spans need more steel, and not in a linear way | Fewer columns means more usable parking spaces |
| Foundation method | Isolated / strip / existing-ground reinforcement | Whether the ground is already paved, what services run underneath, frost depth | The most commonly omitted item, and the usual source of later settlement |
| Roofing material | Colour steel sheet / polycarbonate / membrane | Light transmission, wind and snow rating, service life | Different unit prices and replacement cycles change the long-term account |
| M&E package | Lighting, CCTV, fire equipment, power distribution | Whether it is designed together with the chargers and whether conduits can be shared | Doing it separately means digging twice; doing it together saves one round |
| Site conditions | Road breaking needed, how drainage is handled | Whether machinery can get in, whether night working is required | On difficult sites the labour share rises noticeably |
One addition: wind and snow loads must be calculated properly for Yantai. The coastal area sees plenty of strong wind and the winters bring snow, so the structure and the way the roof is fixed have to be specified for local conditions. This is not where to economise.
The foundation: the item most often left out, and least safe to cut
When a shelter goes wrong it is rarely because the roof collapsed. It is because the foundation was undersized: columns sink, the slab cracks, rainwater pools and runs back. Repairing that costs far more than building the foundation properly in the first place.
A foundation decision rests on three questions:
- Existing ground conditions — a paved slab or backfill? Backfill has to be treated or it will settle later, without exception.
- What is buried — water, power cables and gas positions must be confirmed before digging; skip this and work stops for a re-route.
- How drainage is organised — where the roof water goes. If it cannot get away cleanly, you have moved the problem from the shelter onto the parking bays.
All three can be settled during the survey. Write them into the proposal and you will not be changing the design while the crew is on site.
Doing the package once costs less than doing it twice
The package covers lighting, CCTV, fire equipment and power distribution. Each of those done separately means a second mobilisation. Designed and built with the shelter, they share conduits and cable trays: one excavation, one reinstatement.
This is also the key to phasing: the shell can be staged, but the foundation and distribution should be done once. Build the first phase to actual demand, but reserve the column positions and the conduit routes, so phase two does not break ground again — both budget and programme stay under control.
Fire provision is not optional. E-bikes must not be parked or charged in public lobbies, escape routes or stairwells. The design has to leave room for fire separation, extinguishers, smoke detection and emergency lighting. This part should not be compressed, and it should never appear as an "optional" line.
How to check a shelter quotation
Do not start with the total. Start by checking whether these five items are present at all. A missing item does not mean cheap; it means payable later.
- Steel specification and corrosion protection — does it state section sizes and wall thickness, or just "steel structure"? Hot-dip galvanising or paint decides whether it rusts in a few years.
- Foundation type and depth — isolated or strip, and whether frost depth and the existing slab have been considered.
- Roofing specification — sheet thickness, light transmission, wind rating and the warranty period.
- Package schedule — how many lighting points, cameras, extinguishers and distribution boards, at what specification.
- Scope and reinstatement — how much road is broken, to what standard it is restored, and whether spoil removal is included.
Align those five and then compare prices — only then are you comparing the same thing.
Estimate first, then survey
If you just want a sense of the budget scale, use the charging shelter cost estimator: enter area, span, foundation method and fire rating, and it splits the budget into steel, roofing, foundation, fire, electrical and preliminaries. Unit rates can be changed to local levels, and it outputs both per-square-metre and per-parking-space figures.
For an accurate price, book a free survey: we record the site conditions, ground state and package requirements on site, then produce a configuration list and a cost breakdown you can argue with line by line. The service scope and structure options for shelters are described on the charging shelters page.
We have delivered shelters and charging facilities at more than 300 communities, across different construction eras and site conditions.
The figures above are general industry reference notes, not a Dongshang New Energy quotation, and not investment advice. Actual equipment prices, construction costs and returns depend on the site survey and project assessment.