ᐅ Garage 8m x 7.5m, gable roof, strip foundation, exterior plastering costs
Created on: 27 Feb 2019 21:05
W
wowa789
Good evening everyone,
we need a rough cost estimate for building our garage.
8m x 7.5m (26 ft x 25 ft) with 24cm (9.5 inch) Poroton masonry.
4m (13 ft) of it will share a wall with the house.
2 garage doors
2 windows
1 door to the garden
1 door to the house
Strip foundation
20cm (8 inch) concrete slab
Gable roof
Exterior plaster/render
We want to exclude interior finishing and floor covering for now.
We will do the masonry ourselves. The roof would be built at the same time as the house roof... I think that would be more cost-effective. The same goes for the foundation, concrete slab, and exterior plaster/render.
We are unsure whether we should build the house first and then the garage or both at the same time.
Opinions around me vary widely on this.
I hope you can give me a rough guideline for the costs based on your experience.
Thanks in advance for your thoughts.
Best regards,
Waldemar
we need a rough cost estimate for building our garage.
8m x 7.5m (26 ft x 25 ft) with 24cm (9.5 inch) Poroton masonry.
4m (13 ft) of it will share a wall with the house.
2 garage doors
2 windows
1 door to the garden
1 door to the house
Strip foundation
20cm (8 inch) concrete slab
Gable roof
Exterior plaster/render
We want to exclude interior finishing and floor covering for now.
We will do the masonry ourselves. The roof would be built at the same time as the house roof... I think that would be more cost-effective. The same goes for the foundation, concrete slab, and exterior plaster/render.
We are unsure whether we should build the house first and then the garage or both at the same time.
Opinions around me vary widely on this.
I hope you can give me a rough guideline for the costs based on your experience.
Thanks in advance for your thoughts.
Best regards,
Waldemar
On the shared wall section, the garage roof would have to meet the main residential structure, or do you see it differently?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
That’s correct. But doesn’t the same apply to any securely anchored carport or patio roof?
You just need to find a way to create a support surface for the roof without damaging the masonry. Probably best at the height of the intermediate ceiling at the ring beam. I have no idea how that could work effectively.
Alternatively, you could build a second wall next to it. However, I don’t understand why that should put the energy-saving regulations at risk.
With aerated concrete or porous brick, that is probably much easier than with sand-lime brick combined with insulation.
You just need to find a way to create a support surface for the roof without damaging the masonry. Probably best at the height of the intermediate ceiling at the ring beam. I have no idea how that could work effectively.
Alternatively, you could build a second wall next to it. However, I don’t understand why that should put the energy-saving regulations at risk.
With aerated concrete or porous brick, that is probably much easier than with sand-lime brick combined with insulation.
Garage external dimensions 6.50 x 9 m (21.3 x 29.5 ft)
24 cm (9.5 inch) hollow-core concrete blocks (attached to the house with insulation mat in between)
Gable roof with waterproof underlay and clay tiles
Concrete slab with screed and Korodur hard plastic aggregate
Interior plaster
Colored exterior plaster with base coat
5.50 x 2.25 m (18 x 7.4 ft) Hörmann BiSecur garage door
Side entrance door + 2 windows, RC2 rated
Electrical installation including distribution board
Approximately 30,000 euros
24 cm (9.5 inch) hollow-core concrete blocks (attached to the house with insulation mat in between)
Gable roof with waterproof underlay and clay tiles
Concrete slab with screed and Korodur hard plastic aggregate
Interior plaster
Colored exterior plaster with base coat
5.50 x 2.25 m (18 x 7.4 ft) Hörmann BiSecur garage door
Side entrance door + 2 windows, RC2 rated
Electrical installation including distribution board
Approximately 30,000 euros
Musketier schrieb:
But I don’t understand why the energy saving regulation should be at risk. I meant because of the cold bridge effect between adjoining building components.
RFR schrieb:
24cm (9.5 inches) hollow core concrete blocks (attached to the house with insulation mat in between) ... that would also be my preferred construction method.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Thank you for your responses. According to our calculations, the cost is around €42,000 without any personal labor, but that will still be factored in.
We are using 24 cm (10 inches) hollow concrete blocks.
After construction, I will take the time to calculate the total cost of the garage.
We are using 24 cm (10 inches) hollow concrete blocks.
After construction, I will take the time to calculate the total cost of the garage.
I can provide you with the cost breakdown; I built something very similar (slightly larger) in 2024.
Foundation slab = 10,000 euros – outsourced
24 cm (9.5 inches) aerated concrete blocks = 4,000 euros – self-built
Lintel = 1,800 euros – outsourced
Ring beam = 600 euros – self-built
Gable roof = 16,000 euros – outsourced
Plastering = 13,000 euros – outsourced
The roof was particularly expensive for me because I used a special self-supporting structure (for a scissor lift -> 5.8 m (19 feet) interior height).
Plastering was surprisingly costly as well. I didn’t expect that…
Foundation slab = 10,000 euros – outsourced
24 cm (9.5 inches) aerated concrete blocks = 4,000 euros – self-built
Lintel = 1,800 euros – outsourced
Ring beam = 600 euros – self-built
Gable roof = 16,000 euros – outsourced
Plastering = 13,000 euros – outsourced
The roof was particularly expensive for me because I used a special self-supporting structure (for a scissor lift -> 5.8 m (19 feet) interior height).
Plastering was surprisingly costly as well. I didn’t expect that…
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