I have a 1960s Marley precast concrete garage.

The retatable mechanism for the original steel up & over door has fallen
apart & anyway I would like to replace the door.

I am thinking of a DIY replacement with a simple canopy up & over ( the
garage is used for storage & not a vehicle) using eg wicks

either GRP or steel in a pre hung steel frame.
I can order the frame size for either fitting between the opening or behind
the opening.

Either way , of course, I will have the issue of fixing the steel frame to
the pre cast concrete.

Does anybody have any experience of drilling / fixing to pre cast in these
circumstances ?

Even if I go for installing a timber frame I guess that I will have similar
fixing issues.

Of course the existing gear is fixed to the concrete. I am not sure but this
may be by bolt studs manufactured into the concrete ?

Thanks for any advice

Regards

Richard

"Richard Morley" wrote in message
...
I have a 1960s Marley precast concrete garage.

The retatable mechanism for the original steel up & over door has fallen
apart & anyway I would like to replace the door.

I am thinking of a DIY replacement with a simple canopy up & over ( the
garage is used for storage & not a vehicle) using eg wicks

either GRP or steel in a pre hung steel frame.
I can order the frame size for either fitting between the opening or
behind the opening.

Either way , of course, I will have the issue of fixing the steel frame to
the pre cast concrete.

Does anybody have any experience of drilling / fixing to pre cast in these
circumstances ?

Even if I go for installing a timber frame I guess that I will have
similar fixing issues.

Of course the existing gear is fixed to the concrete. I am not sure but
this may be by bolt studs manufactured into the concrete ?

Thanks for any advice

The pre-cast can be drilled in much the same way as ordinary concrete. Just
be aware that there *may* be steel reinforcing inside.

Conventional bolts are fine for the new fixings.

Check out Fleabay for an electric opener at the same time.