Trench fill foundations rubble in trench wall and obstructions!

14 Mar 2012
Reaction score
United Kingdom
Have a look at these Pictures .. on one side of the trench wall I have dug to accommodate foundations for the garden building I plan to construct in 300mm brick and block there is quite a bit of old brick and rubble .. should I shutter this off before pouring concrete or should I just fill the whole lot?

Also there appears to be the top part of an old wall intact and passing through the width of the trench on another side .. I was just thinking of passing rebar through it in drilled holes and pouring concrete over that as well as opposed to cutting it out .. what do people think?


  • IMG_20160822_095808.jpg
    361.3 KB · Views: 359
  • IMG_20160825_084655.jpg
    395.8 KB · Views: 391
  • IMG_20160825_084735.jpg
    300 KB · Views: 358
  • IMG_20160825_084741.jpg
    334.6 KB · Views: 344
  • IMG_20160825_084747.jpg
    322.7 KB · Views: 344
Sponsored Links
Clear the loose material from the bed of the trench
Why you have such a large trench for a garden shed beats me.
Ignore the builders rubble in the side walls, and ignore the concrete "wall" passing across your trench.
Pour your strip footing or trench fill to the required height.
Thanks Vinn ..the trench is 600 wide for 300 mm cavity wall which I thought was standard practice .. I've gone about 700 deep though it probably should be more like a meter in clay ..I'm sure there will be those that will say I am taking a risk with that!

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links