Calculating the number of bricks required...
Discussion
Guys (& Gals),
I'm looking at building a raised flower bed out of breeze blocks. The plan is to then render this and fit a piece of decking on top to act as a seating area around the bed.
The bed area will be approx 4.65m long and 0.70m deep.
Height wise i'm not sure... I can either use the concrete running boards of the fence as the back of the bed (approx 0.30m high) or put in a rear wall to the bed so that the flower bed is completely self contained (in which case it could be higher).
I'm not sure how to calculate the number of bricks required (length x height).
So assuming I only need to build three walls (front & two sides):
4.65m + 0.70m + 0.70m (l) x 0.30m (h) which will give the square footage?
Or if four walls:
4.65m + 4.65m + 0.70m + 0.70m (l) x 0.30 (h) ?
Am I on the right track?
Cheers,
Phill
I'm looking at building a raised flower bed out of breeze blocks. The plan is to then render this and fit a piece of decking on top to act as a seating area around the bed.
The bed area will be approx 4.65m long and 0.70m deep.
Height wise i'm not sure... I can either use the concrete running boards of the fence as the back of the bed (approx 0.30m high) or put in a rear wall to the bed so that the flower bed is completely self contained (in which case it could be higher).
I'm not sure how to calculate the number of bricks required (length x height).
So assuming I only need to build three walls (front & two sides):
4.65m + 0.70m + 0.70m (l) x 0.30m (h) which will give the square footage?
Or if four walls:
4.65m + 4.65m + 0.70m + 0.70m (l) x 0.30 (h) ?
Am I on the right track?
Cheers,
Phill
A block is 450x225x100...
Work out the area and divide by above. Obviously work out how long a "run" you will need and then the height and include any
extras, such as half block lengths, especially on the run. Don't forget some in the ground as well, connecting to the foundations.
Add on 10% wastage to your total and you should be about there.
ETA : looking at your figures you've got a run of 11 and then 2 + 2 and then height x2 = 30. For instance.
Work out the area and divide by above. Obviously work out how long a "run" you will need and then the height and include any
extras, such as half block lengths, especially on the run. Don't forget some in the ground as well, connecting to the foundations.
Add on 10% wastage to your total and you should be about there.
ETA : looking at your figures you've got a run of 11 and then 2 + 2 and then height x2 = 30. For instance.
Edited by eps on Thursday 22 April 14:08
this link will help http://www.diydata.com/general_building/brick_calc...
there is another site I have used where you put in the dims you have and it tells you but can't find it now.
there is another site I have used where you put in the dims you have and it tells you but can't find it now.
Dims of a brick are 215x102.5x65mm
A laid brick is 225mm long including one joint (10mm) so nearest in whole brick sizes for your 4.65m would be 4602mm (20.5 bricks long). Height wise, one brick and one bed joint would be 75mm, so your 300 high wall would be four courses.
A laid brick is 225mm long including one joint (10mm) so nearest in whole brick sizes for your 4.65m would be 4602mm (20.5 bricks long). Height wise, one brick and one bed joint would be 75mm, so your 300 high wall would be four courses.
Edited by rsv gone! on Thursday 22 April 19:52
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