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Some basic block laying questions
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leen...@yahoo.co.uk
May 15, 2022, 9:31:41 AM5/15/22
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Hi all,
I am going to start building an outdoor BBQ next weekend out of concrete blocks. It is about 1900mm wide, around 850mm deep, block legs each end and a block central leg in the middle. I have laid a few bricks/ blocks before but nothing on this scale. Looking at some online videos to work out the best way to arrange the blocks, make sure it is square etc. it advises to do the corners first (although given the small size I think that may be irrelevant) but also to ensure "half bonding". As far as I can make out, the principle being that blocks should straddle 2 blocks below half on each one. This is alright in practice but when the width isn't a full number of blocks and I need to incorporate the middle leg this seems to be a bit too complicated.
For the corner, the videos suggest adding a 100mm block "offcut" next to the edge of the block that runs front to back (F2B) and then a full block next to the offcut. So you get 100mm (F2B block edge), 20mm cement, 100mm offcut = width of half a block. Another video suggested not to bother cutting blocks and use a house brick positioned vertically but that would either mean the width (left to right) is now 65mm (instead of the 100mm) or the depth (F2B) is 65mm and therefore not flush to the blocks front and back.
That being the easiest part of my confusion ( :) ), heaven knows what I am supposed to do at the centre leg or indeed where I need to use part blocks because the width/ depth aren't full block friendly.
Anyone have any idea how to achieve this? Having said that, given the size of the structure (it has back, left and right sides only - i.e. open front for obvious reasons :) ) and it is only about 2.5m high and non-load bearing maybe I don't need to worry about all this and just make the corners without the "offcuts" and overlap as best I can?
Any thoughts greatly appreciated.
Thanks in advance
Lee.
I am going to start building an outdoor BBQ next weekend out of concrete blocks. It is about 1900mm wide, around 850mm deep, block legs each end and a block central leg in the middle. I have laid a few bricks/ blocks before but nothing on this scale. Looking at some online videos to work out the best way to arrange the blocks, make sure it is square etc. it advises to do the corners first (although given the small size I think that may be irrelevant) but also to ensure "half bonding". As far as I can make out, the principle being that blocks should straddle 2 blocks below half on each one. This is alright in practice but when the width isn't a full number of blocks and I need to incorporate the middle leg this seems to be a bit too complicated.
For the corner, the videos suggest adding a 100mm block "offcut" next to the edge of the block that runs front to back (F2B) and then a full block next to the offcut. So you get 100mm (F2B block edge), 20mm cement, 100mm offcut = width of half a block. Another video suggested not to bother cutting blocks and use a house brick positioned vertically but that would either mean the width (left to right) is now 65mm (instead of the 100mm) or the depth (F2B) is 65mm and therefore not flush to the blocks front and back.
That being the easiest part of my confusion ( :) ), heaven knows what I am supposed to do at the centre leg or indeed where I need to use part blocks because the width/ depth aren't full block friendly.
Anyone have any idea how to achieve this? Having said that, given the size of the structure (it has back, left and right sides only - i.e. open front for obvious reasons :) ) and it is only about 2.5m high and non-load bearing maybe I don't need to worry about all this and just make the corners without the "offcuts" and overlap as best I can?
Any thoughts greatly appreciated.
Thanks in advance
Lee.
Dave Plowman (News)
May 15, 2022, 9:42:56 AM5/15/22
to
Best way is to draw it out to scale on your computer. Easier to alter that
than blocks.
--
*It IS as bad as you think, and they ARE out to get you.
Dave Plowman da...@davenoise.co.uk London SW
To e-mail, change noise into sound.
leen...@yahoo.co.uk
May 15, 2022, 9:47:32 AM5/15/22
to
Richard
May 15, 2022, 11:49:07 AM5/15/22
to
something like this:
https://www.youtube.com/watch?v=xLHoo2a15Ro
Easy to build, easy to modify.
Rod Speed
May 15, 2022, 3:26:34 PM5/15/22
to
On Sun, 15 May 2022 23:31:38 +1000, leen...@yahoo.co.uk
<leen...@yahoo.co.uk> wrote:
> Hi all,
All hanged himself, he got too many questions he couldn't answer.
> I am going to start building an outdoor BBQ next weekend out of concrete
> blocks. It is about 1900mm wide, around 850mm deep, block legs each end
> and a block central leg in the middle. I have laid a few bricks/ blocks
> before but nothing on this scale.
I have done a whole very large house.
> Looking at some online videos to work out the best way to arrange the
> blocks, make sure it is square etc. it advises to do the corners first
That is the way to do it.
> (although given the small size I think that may be irrelevant)
No it's not.
> but also to ensure "half bonding". As far as I can make out, the
> principle being that blocks should straddle 2 blocks below half on each
> one.
That's correct.
This is alright in practice but when the width
> isn't a full number of blocks and I need to incorporate the middle leg
> this seems to be a bit too complicated.
No it isn't and is essential. You just use a mixture of full and half
length blocks.
> For the corner, the videos suggest adding a 100mm block "offcut" next to
> the edge of the block that runs front to back (F2B) and then a full
> block next to the offcut. So you get 100mm (F2B block edge), 20mm
> cement, 100mm offcut = width of half a block.
Better to use both full length and half length blocks.
The return is just a full block where there
would be a half block if there was no corner.
The middle leg has a full block coming down
the leg with a half block beside it in one course
and two full blocks in the next course.
Just use paper with marked squares to draw it out.
Each square is a half block.
> Another video suggested not to bother cutting blocks and use a house
> brick positioned vertically but that would either mean the width (left
> to right) is now 65mm (instead of the 100mm) or the depth (F2B) is 65mm
> and therefore not flush to the blocks front and back.
Yeah, that's an abortion.
> That being the easiest part of my confusion ( :) ), heaven knows what I
> am supposed to do at the centre leg or indeed where I need to use part
> blocks because the width/ depth aren't full block friendly.
Thats why you have both full blocks and half blocks.
> Anyone have any idea how to achieve this?
Yep, just use full blocks and half blocks.
> Having said that, given the size of the structure (it has back, left and
> right sides only - i.e. open front for obvious reasons :) ) and it is
> only about 2.5m high and non-load bearing maybe I don't need to worry
> about all this and just make the corners without the "offcuts" and
> overlap as best I can?
Nope, that will look much worse.
> Any thoughts greatly appreciated.
I gave up on those, they just make my head hurt.
> Thanks in advance
<leen...@yahoo.co.uk> wrote:
> Hi all,
All hanged himself, he got too many questions he couldn't answer.
> I am going to start building an outdoor BBQ next weekend out of concrete
> blocks. It is about 1900mm wide, around 850mm deep, block legs each end
> and a block central leg in the middle. I have laid a few bricks/ blocks
> before but nothing on this scale.
> Looking at some online videos to work out the best way to arrange the
> blocks, make sure it is square etc. it advises to do the corners first
> (although given the small size I think that may be irrelevant)
> but also to ensure "half bonding". As far as I can make out, the
> principle being that blocks should straddle 2 blocks below half on each
> one.
This is alright in practice but when the width
> isn't a full number of blocks and I need to incorporate the middle leg
> this seems to be a bit too complicated.
length blocks.
> For the corner, the videos suggest adding a 100mm block "offcut" next to
> the edge of the block that runs front to back (F2B) and then a full
> block next to the offcut. So you get 100mm (F2B block edge), 20mm
> cement, 100mm offcut = width of half a block.
The return is just a full block where there
would be a half block if there was no corner.
The middle leg has a full block coming down
the leg with a half block beside it in one course
and two full blocks in the next course.
Just use paper with marked squares to draw it out.
Each square is a half block.
> Another video suggested not to bother cutting blocks and use a house
> brick positioned vertically but that would either mean the width (left
> to right) is now 65mm (instead of the 100mm) or the depth (F2B) is 65mm
> and therefore not flush to the blocks front and back.
> That being the easiest part of my confusion ( :) ), heaven knows what I
> am supposed to do at the centre leg or indeed where I need to use part
> blocks because the width/ depth aren't full block friendly.
> Anyone have any idea how to achieve this?
> Having said that, given the size of the structure (it has back, left and
> right sides only - i.e. open front for obvious reasons :) ) and it is
> only about 2.5m high and non-load bearing maybe I don't need to worry
> about all this and just make the corners without the "offcuts" and
> overlap as best I can?
> Any thoughts greatly appreciated.
I gave up on those, they just make my head hurt.
> Thanks in advance
Rod Speed
May 15, 2022, 3:29:05 PM5/15/22
to
Peeler
May 15, 2022, 3:37:31 PM5/15/22
to
On Mon, 16 May 2022 05:26:26 +1000, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:
<FLUSH the abnormal trolling senile cretin's latest trollshit unread>
--
Website (from 2007) dedicated to the 88-year-old senile Australian
cretin's pathological trolling:
https://www.pcreview.co.uk/threads/rod-speed-faq.2973853/
Speed, the auto-contradicting senile sociopath, blabbered, again:
<FLUSH the abnormal trolling senile cretin's latest trollshit unread>
--
Website (from 2007) dedicated to the 88-year-old senile Australian
cretin's pathological trolling:
https://www.pcreview.co.uk/threads/rod-speed-faq.2973853/
Rod Speed
May 15, 2022, 3:37:55 PM5/15/22
to
> Easy to build, easy to modify.
Peeler
May 15, 2022, 5:20:38 PM5/15/22
to
On Mon, 16 May 2022 05:28:58 +1000, cantankerous trolling geezer Rodent
Peeler
May 15, 2022, 5:21:02 PM5/15/22
to
On Mon, 16 May 2022 05:37:48 +1000, cantankerous trolling geezer Rodent
"Rod, you have a sick twisted mind. I suggest you stop your mindless
and totally irresponsible talk. Your mouth could get you into a lot of
trouble."
MID: <gfbb94...@mid.individual.net>
Speed, the auto-contradicting senile sociopath, blabbered, again:
<FLUSH the abnormal trolling senile cretin's latest trollshit unread>
--
Bod addressing senile Rodent Speed:
<FLUSH the abnormal trolling senile cretin's latest trollshit unread>
--
"Rod, you have a sick twisted mind. I suggest you stop your mindless
and totally irresponsible talk. Your mouth could get you into a lot of
trouble."
MID: <gfbb94...@mid.individual.net>
John Walliker
May 15, 2022, 6:05:49 PM5/15/22
to
use it. I discovered that a damp paving stone used as the base for a BBQ explodes
very spectacularly once it gets hot.
John
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