ᐅ Building a Garage Yourself – Materials and Cost List, Does This Look Correct?

Created on: 14 Mar 2021 14:15
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Reini1234
Hello everyone,

Originally, we planned to build a carport, but the idea of constructing a garage ourselves never completely disappeared. We have a building permit / planning permission, but it was originally issued for a timber frame garage. Accordingly, the structural calculations are available for that.

To make a final decision, I roughly compiled a list of materials and prices to estimate the costs. A master mason friend is available to help. Most prices were based on online listings or existing quotes from the current building. Only for the garage door do we have concrete offers.

What do you think? Is something major missing or are our prices completely off?

Garage made of 24 cm (9.5 inches) Ytong blocks, 7.00 x 6.50 m (23 x 21 feet), shed roof with 40 cm (16 inches) sandwich panels, sectional door, floor slab existing, no earthworks necessary:

24 cm (9.5 inches) Ytong blocks: 2,000 EUR
Adhesive, 15 bags: 240 EUR
Ring beam with reinforcement: 2,000 EUR (this is where I’m most uncertain)
Roof rafters 8 x 20 cm (3 x 8 inches), 1 m (3 ft) spacing: 500 EUR
Sandwich panels with 40 cm (16 inches) insulation: 1,500 EUR (possibly extra costs for higher insulation)
Sectional door including installation: 3,200 EUR (promotional door 2,500 EUR)
Gutter sheet metal: 170 EUR
Rain gutter: 120 EUR
Structural engineering adjustment: 500 EUR
Exterior plaster: 500 EUR
---------------------------------------------
Total: 10,730 EUR

There would also be a potential extra cost for a cement screed (45 m² x 25 EUR): 1,125 EUR. I will do the electrical work myself.

How realistic do you find this estimate?
tomtom7925 Mar 2021 15:56
On eBay, the gates are available for 1500-1700€ (approximately $1600-$1800), even with L-shaped grooves. Installation can be done for around 500€ (approximately $530) through classifieds.
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netuser
25 Mar 2021 16:49
Hello everyone!

Can someone with experience tell me what a "good price" would be for constructing the slab foundation for a garage? I am receiving quotes of around 180 - 200 EUR per square meter (sq m) for a total area of 34 sq m.

Is it just me, or do prices around 200 EUR per sq m seem significantly overpriced? 🙁
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Steven
26 Mar 2021 12:55
netuser schrieb:

Can someone with experience tell me what a "good price" is for

Hello

20cm (8 inches) thick slab: 6.8m³ (9 cubic yards) of concrete = about 600 euros including delivery.
200 euros for reinforcement steel.
One day (very generously estimated) for formwork.
3 hours to pour and smooth the concrete.
Do the math yourself.

Steven
tomtom7926 Mar 2021 13:24
Sounds quite expensive, but what exactly is included? Removal of soil? Waterproofing at the bottom?

For a foundation for a new garage, I would use MyHammer.
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netuser
26 Mar 2021 14:20
tomtom79 schrieb:

Sounds very expensive, but what exactly is included? Removal of soil? Waterproofing at the base?

For a foundation for a new garage, I would consider using myhammer.


Earthworks (disposal, compaction) are not included.
More precisely, it says:
"Raw concrete foundation slab for garage, thickness 20cm (8 inches), including 2 layers of Q257 and a surrounding concrete frost skirt."
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Reini1234
26 Apr 2021 13:33
@Nemesis
How can I contact you outside of the forum? The private message feature seems to be disabled for you.