"Michael Chare" wrote in message
o.uk...
"David Chapman" wrote in message
...

Hi,

We have a very old rectangular cast iron manhole cover
(approximately
650mm x 495mm) in our front drive which has just shattered and is
now in
urgent need of replacement.

The nearest size (in galvanised steel) that seems to be
available from
the local builders merchants is around 600mm x 450mm so it seems
likely
that the old frame will have to be replaced as well with one that
is large
enough to cover the hole plus overlap for fixing.

I'm posting this in the hope that someone in the NG with
experience of
these problems can suggest any better replacement solutions, or
offer any
hints or tips as to the best way to replace the old manhole
frame/cover.

Any constructive comments will be much appreciated.


Make sure that you buy one that is strong enough to support a
vehicle. Some
covers are only suitable for pedestrian use.


--
Michael Chare



Get a piece of 1/4" steel chequer plate cut to fit your hole and if
the loading is great weld 2" angle irons across the underside

AWEM

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "Andrew Mawson"
saying something like:

Get a piece of 1/4" steel chequer plate cut to fit your hole and if
the loading is great weld 2" angle irons across the underside

Which is the most sensible solution. Iow, just what I'd do

Size of cast manhole cover 565 x 350

On 23/07/2020 20:10, wrote:
Size of cast manhole cover 565 x 350


Modern ones seem to be about 25.5 inches by 18.25 inches
which is about 648 by 464.