"Phil L" wrote in message
om...
David WE Roberts wrote:
"David WE Roberts" wrote in message
...
Getting closer to wall building time now the weather has warmed up a
bit; if only it would stop raining!

I will obviously need to cut concrete blocks - I will be using the
'medium density' blocks for external walls with no rendering.
[At least I think the normal ones are described as 'medium density'
- it does beg the question as to what 'dense' blocks are.]
snip

Any idea how much to allow for wastage?
I am not the best cutter of bricks etc.

I'd order what I needed to be delivered, and then pick up a dozen or so at
a time if any extras are required, you are better under ordering with
blocks.

Also forgot to ask, are you intending adding any butresses? - if the wall
is longer than 4m, you'll need a buttress in the middle, basically just a
stack of blocks, tied into the main wall with tie wires on every course

I will need to add something in the middle of the back wall as it is 7.8m
long.
The front wall will also need some extra support and I am contemplating how
to work this in around windows, doors, and a place for the stove.
On the front wall this may end up as a fireplace for the stove to provide
sides for protection from the hot metal.

I have more or less decided to go for the maximum length of block wall and
ignore the fact that part blocks look less pretty.
For three sides this is not an issue as they are facing a fence.
The only visible area is the front and the doors are going to make a
difference to the number of blocks.

I can always hide stuff behind plant etc, or perhaps render the front wall.

Mainly, I don't mind if it is ugly as long as it is up!
[As the actress said to the bishop]

I would like to be able to get concrete blocks at less than £1 per block
because I need at least 330 blocks to do the back and sides.

Cheers

Dave R