[shaun foxford]

Hi
Im blocking up a garage operning and would like to know if there is any building regulations as to whether I can use a conncrete lintel at the bottom toothed into the piers at each end to then build my wall off the operning is 2100mm wide and I'm looking to install a 100x75 at 2400mm long lintel, any addvice will be most welcomed

[joypulv]

Building codes are always local. Since you are talking metric, I assume you aren't in the US. Ask your building inspector. Your lintel sounds OK as I read it, but it also depends on the load above, how many stories the house is (assuming the garage is under the house) and how the load is distributed down.

[shaun foxford]

Thanks
I am from the uk
There is not much weight bearing on the lintel as there is a lintel already at the top of the operning taking the main weight so it will only be the weight of the blocks I use that will be bearing on the lintel

[joypulv]

Oh right, at the bottom.. so it depends on how the foundation was made. Just piers, no frost wall? Then the whole wall might heave when the ground freezes.