Most Dutch houses have no delivery route at the back. The beam still has to get there. Which route we choose, and why.
The extension is drawn, the calculation checks out, the beam is ordered. And then it turns out there is no way at all to get it behind the house.
The problem with the back of the house
Many Dutch houses have no access route at the rear. An extension or opening in the rear elevation still needs a beam delivered there. Over the roof, across the garden, sometimes over water.
A truck crane cannot get into a back garden. A compact tracked crane can - down a side passage, across a footbridge, or through the house itself. That is exactly why we work with this class of plant.
The routes we consider
- Down a side passage beside the house, if the gap is wide enough
- Over the garden or the water, with the crane set up street-side
- Through the house itself, if the floor carries the crane
- Delivered in sections and joined on site
Which route it becomes often decides the section. A lighter beam with an intermediate support is sometimes the better choice than a heavier one that cannot get past anything.
And when it genuinely cannot be done
We say so. A portal that cannot be delivered is not a portal. Better an honest no beforehand than a half-solved structure afterwards.