Increasing size of barn / garage (6m x 3m) with concrete slab

Hello, im new here!

We are increasing the size of our garage, let me tell you a couple of things

OLD GARAGE
Current dimensions: 6 x 3 (meters)
Roof: Flat roof
Floor: Concrete floor with piles underneath
Walls: Bricks

NEW GARAGE
Dimensions: 6 x 4 (meters)
Roof: Gable Roof
Floor: Concrete floor with piles underneath
Walls: Wood

I have a couple of questions, since i am a newbie. I intend to do the construction myself because its a fun project. Only issue at this point is that i do not know much about foundations.

We want to keep the current concrete slab thats underneath the garage (6x3 meters)
We have 2 options:

Option 1:
Tear everything down. Add 2 more piles underneath the extended part of the concrete floor, dig out a foundation and pour concrete with rebar. Then start from scratsch with wood
This would be considered the professional route, and the most expensive one.

Option 2:
The old garage has 2 long walls (6m) and 2 short walls (3m).
We keep 1 long wall and 1 short wall. The rest we tear down.
So we are left with an 'L-shape' brick wall. From there we continue with wood,.
The new wall will be build on 5 concrete foots, like this. So the complete structure rests on the brick wall and at the other side on 5 of those.
1711960339610.png

The floor will just be a thin concrete slab with rebar that MAYBE OR MAY NOT BE fixed to the existing concrete slab.



Those are the 2 options. Obvously the main issue is if the foundation of the extra 6x1 meter will sag into the ground, dragging the rest of the structure with it, with the result of the structure will slowly become un-leveld.
The ground here is quite solid. It is reclaimed land so mostly sand.
Overall, its just wood, so the complete structure is not super-heavy in my opinion. But what do you think of my Option2?
 

Will you help clear snow?

  • yes

    Votes: 72 32.1%
  • no

    Votes: 152 67.9%

The London Palladium event “BPR Seminar”

  • 15,341
  • 235
This is our next step following the London rally 🚜

BPR is not just a farming issue, it affects ALL business, it removes incentive to invest for growth

Join us @LondonPalladium on the 16th for beginning of UK business fight back👍

Back
Top