Scroll down and watch a 20 by 30 metre hall being built. The stages come in the order we do them, and the counter tracks the working days.
ScrollArchitectural and structural design. The frame is calculated for the snow and wind at the place where it will stand. We keep the paperwork for the site.
How long a permit takes depends on the municipality, so it is not counted here.
The surveyor transfers the grid lines from the drawings onto the ground. Pegs and string lines show where each column will stand.
The diagonals are measured. When they are equal, the corners are square.
A pit for a pad foundation is dug under each column. How deep it goes depends on the design and the soil on site.
The bottom of every pit is levelled.
The reinforcement takes the tension and the formwork gives the shape. The anchor bolts that the columns will stand on are set in at the top.
The bolts are set with a template and checked for height and spacing.
The concrete is poured and vibrated so that no air stays inside. The plinth around the perimeter, which the walls will sit on, is poured as well.
For the first few days the concrete is kept wet so that it does not crack.
The concrete gains strength for about two weeks. Over the same days the columns, trusses and purlins are cut, welded and primed in the workshop. So the frame is ready by the time the concrete can carry it.
Every element leaves the workshop marked with its number from the erection drawing.
The frame arrives ready to erect. The columns are lifted by crane and bolted down on the anchor bolts.
Each column is checked for plumb before it is tightened.
The trusses go up one at a time and are bolted to the columns. After the sixth, the frame is complete.
The bolts are tightened to the torque given in the design.
Cross bracing makes the frame rigid. The purlins on the roof and the rails on the walls form the grid the panels will be fixed to.
Before the panels go on, the frame is measured once more for lines and levels.
The roof sandwich panels are laid side by side from the eaves to the ridge, overlapped and sealed. From this day on it is dry inside.
The ridge is closed with a flashing and the overlaps are sealed.
The wall panels close the building in. The openings for doors and windows stay where the design puts them.
The joints between the panels are checked from outside and inside.
A sectional door, an entrance door and strip windows. Flashings go on the corners, gutters and downpipes along the eaves.
Water from the roof is carried away from the foundations.
An industrial floor with a power-trowelled finish. Then the lighting and the services included in the design.
The floor is trowelled as soon as the concrete is hard enough to carry the machine.
We walk round the site with you and write down anything that needs fixing. We put it right and hand you the keys.
The site paperwork is handed over together with the keys.
This is an example hall, 20 by 30 metres, 600 m², 6 m high to the trusses, with a sandwich panel roof and walls and an industrial floor. For your building, the timeline and the price depend on the dimensions, the ground and the cladding. We give the exact figures in writing, in the quote after the site visit.
| Stage | Days | Approximate |
|---|---|---|
| 00Design and paperwork | Not counted | in the quote |
| 01Site visit and setting out | Day 1 | €600 |
| 02Excavation | Days 2 to 4 | €3,400 |
| 03Reinforcement and formwork | Days 5 to 8 | €6,200 |
| 04Concrete | Days 9 and 10 | €7,800 |
| 05The concrete cures, the workshop works | Days 11 to 24 | €36,000 |
| 06The columns | Days 25 to 27 | €3,000 |
| 07The trusses | Days 28 to 31 | €4,000 |
| 08Bracing and purlins | Days 32 to 35 | €2,400 |
| 09The roof | Days 36 to 41 | €24,000 |
| 10The walls | Days 42 to 47 | €18,000 |
| 11Doors, windows, flashings | Days 48 to 51 | €11,000 |
| 12Floor and lighting | Days 52 to 57 | €23,000 |
| 13Handover | Days 58 to 60 | in the quote |
| Total, excl. VAT | 60 working days | €139,400about €230 per m² |
Prices are approximate 2026 market figures, excluding VAT, for the example hall described. The design and the building permit are not included.
Process
Configurator
Anatomy