ᐅ Which type of garage at what cost?

Created on: 12 Apr 2023 19:29
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HansvonKlaus
Greetings,

We are planning to build a garage next to our single-family house. We have requested several quotes and are surprised by how much they vary. We contacted the following companies: Zapf, Rekers, Hoffmann, and K-Plus. We also noticed that the prices for installing strip foundations fluctuate dramatically, ranging from 3,000 to 5,000€ (approximately $3,200 to $5,300). Wouldn’t a large concrete slab be more cost-effective?

Garage dimensions: 2.95 x 9 meters (9.7 x 29.5 feet), including an extension. The specifications were always the same: Hörmann sectional door, Hörmann door and drive, electrical package.

Quotes:

Hoffmann: 30,000€ (about $31,700)
Zapf: 21,000€ (about $22,200)
Rekers: 17,000€ (about $18,000)
K-Plus: 12,000€ (about $12,700)

Except for Hoffmann, all providers add extra costs for the foundation and crane. Additionally, there is the electrical subcontractor’s fee. Our favorite is Hoffmann because of the material quality and the fact that no crane or foundation is required, but 30,000€+ is quite expensive. With Rekers, we appreciate the TÜV certification and the fact that the electrical wiring is installed flush in the walls; they are also the only provider offering this in their package. Zapf and K-Plus have many dissatisfied customers, and Zapf is still quite pricey.

What are your experiences, or are there other providers known for delivering quality that we might contact? By the way, a steel or wooden garage is not an option for us.

Best regards
11ant7 Oct 2023 09:24
I'm glad to hear that, and
HansvonKlaus schrieb:

They were even able to install a window according to our wishes. 2m long and 60cm high (casement window)

It amazes me that windows of this size are possible with plank construction – though I wonder if your car even appreciates that panoramic view ;-)
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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HansvonKlaus
15 Nov 2023 16:23
11ant schrieb:

That makes me happy and amazes me that windows of this size are possible even with plank construction – although I do wonder if your car truly appreciates this panoramic view ;-)

The garage is now 10m (33 feet) long, and the rear part is used as storage space. Therefore, we wanted to have plenty of light. It is also good for ventilation, so you don’t always have to open the door.
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HansvonKlaus
20 Jun 2024 13:13
Hello,

After a long wait, work finally started today. The foundation was just poured, but without any reinforcement. Is this correct, or is this a case of cutting corners in the wrong place? The garage is about 3m (10 feet) wide and 10m (33 feet) long.

Best regards


Underside of the exterior wall with peeling plaster, soil and gravel at the foundation.

Freshly poured concrete floor slab in the courtyard, framed by concrete and wooden walls

Concrete mixer pouring concrete into formwork; worker directing the flow of concrete.
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hanse987
20 Jun 2024 19:44
HansvonKlaus schrieb:

Is this correct, or was the wrong aspect cut back here?
What does the structural engineering report for the garage say?
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HansvonKlaus
21 Jun 2024 03:38
The offer and contract specify the following:

Execution with an 18cm (7 inches) thick, doubly reinforced concrete slab (plus a 5cm (2 inches) leveling layer to integrate the door track) on a site-prepared base course (approximately 30cm (12 inches) thick capillary-breaking material). Surface flatness according to the requirements of DIN 18202, sheet 3.

The garage was delivered on Monday, and the driver had another customer to serve or deliver to. This delivery included three steel reinforcement mats. The garage is smaller than ours. However, we did not receive any steel mats.

Should I be concerned that the slab might develop cracks over time and that the garage could be compromised? The garage or shell is scheduled to be completed this morning. This means the slab had less than a day to cure, which seems questionable or possibly insufficient.
schubert7921 Jun 2024 06:27
It's clear. Reinforced concrete slab foundation. I don't see anything, at least not in the photos.