Cost of structural engineer single-family house

  • Erstellt am 2021-04-14 23:02:26

11ant

2021-12-02 14:47:27
  • #1

Why did you leave out 7 and 8?
 

Lumpi_LE

2021-12-02 14:58:15
  • #2


One is not bound to the HOAI. Especially for single-family houses, the HOAI is hardly applicable. Example: Standard single-family house with gable roof: base slab, reinforced concrete ceiling, roof truss. Someone who constantly does structural calculations here has their templates – exchanges 3 numbers and makes a reinforcement plan for the base and ceiling, as well as a position plan for the roof truss. With a bit of surrounding work, it takes about 2 weeks; €4,000 is sufficient even if HOAI might grant you 15. If the house becomes more complicated or someone makes an offer who is doing this for the first time, the numbers are correspondingly higher.
 

TmMike_2

2021-12-03 23:41:06
  • #3
I also like to share my experience. I paid €1450 net for this 200-page statics report that I based my build on. Our statics are relatively complex due to the roof truss and the four dormers on the upper floor. The structural engineer put in so much steel (for example, 3.5m wide fixed glass elements in the living room) and wood in the roof truss that I couldn't believe it. But I am also sure that everything will last about 100 years. A single-family house, even if complex, should be finished by a competent structural engineer in 2 working days. With an hourly rate of €75-85, that all makes sense.
 

Bamboochaa

2021-12-05 01:25:16
  • #4


What would phases 7 and 8 be for the structural engineer? My statement only referred to the offer from the structural engineer.

With the architect, of course, we completed 1-4 and then 5-8.
 

Bamboochaa

2021-12-05 01:47:11
  • #5


That makes me wonder whether an "expensive" structural engineer would have calculated as much steel or found a cheaper and smarter solution. Whether the material costs then outweigh the planning costs is, of course, a whole different matter.

And personally, I doubt that dormers make a structural analysis complex. 3.5m fixed glazing doesn’t sound remarkable or very complex. Isn’t it rather unusual large room spans without load-bearing walls or, for example, corresponding cantilevers of upper floors, etc.?

Are you estimating your assumption of two working days, or is this a layman’s assessment on your part? Do you have references or contacts that can confirm this? Are we also talking about service phases 1-6 of structural planning here?

Perhaps it could be because there are comparable objects for which a similar calculation already exists?!

As a layperson in construction, I quickly reach my limits. I like to trust my architect, who has done a good job so far. However, when I see the values discussed here in the forum, I naturally start to wonder.

Good work should be properly compensated. Then both sides benefit. Still, a counteroffer should be recognized accordingly.
 

TmMike_2

2021-12-05 01:50:41
  • #6
Obviously, we are unfortunately talking past each other a bit here. I don’t even know what structural engineering service phases 1-6 mean. I had a structural calculation made for my house construction and built the house based on this. Everything was included. I then gave the plans to the carpenter as well as to the concrete plant for the precast slab.
 

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