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Can I build 18inch wall onto existing paving flag base.
Anonymous user 23/02/2024 - 3.49 PM
I have an existing flag base which has housed a shed for past 15 years at lowest point of garden. Intention is to raise this area to existing patio level this would require building 18 inch wall some 8 feet x 6feetx 6 feet. Filling with ballast and topping with new slabs. Can I build onto existing flags or would I need to excavate and create new foundations. The new raised area would house a summerhouse.
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5 Answers
GAP Groundwork
Rating: 5 out of 5
If it was me I would do new foundations no point taking chances on a important project such as that.better safe than sorry later
Answered16 November 2022
4
Anonymous user
Your need proper concrete footings the slabs will not take the wait
Answered26 November 2022
2
Outback Garden Design
Rating: 5 out of 5
I recommend putting in a small footing 150 mill deep and slightly wider than the width of the wall , that will do the job nicely
Answered16 November 2022
1
GMS
Rating: 5 out of 5
I would excavate ground and do a new foundation min 150 mm deep concrete and do as wide as possible at least 400mm wide so wall will be stable as high wall
Answered25 November 2022
1