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Tez's Workshop Build

Roll up, roll up. Here you will find everything from new workshop designs, through builds to completed workshop tours. All magnificently overseen by our own Mike G and his tremendously thorough 'Shed' design and generous advice.

Re: Tez's Workshop Build

Postby tabs » 07 Sep 2017, 15:27

IMG_20170831_160510.jpg
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in the bottom left hand corner of the slab you can just about see the drainpipe I used to get cabling up through the slab.

IMG_20170831_160520.jpg
(179.25 KiB)

I definately took some pictures of the site with the the formwork and sand blinding but can't seem to find them but heres some of the slab only a few days old.
IMG_20170831_160527.jpg
(280.12 KiB)


I used 6x2s for the formwork, used visquine(sp?) and put mesh in the slab as well so should bleedin well outlast me!
Last edited by tabs on 07 Sep 2017, 15:33, edited 1 time in total.
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Re: Tez's Workshop Build

Postby tabs » 07 Sep 2017, 15:32

I got the concrete from a Spotmix type company as I didn't want the hassle of having any left over. After barrowing in is cost me about £230 so not too bad.

Just considering when I should take the formwork off now and cut back the sheeting.

Will be going down the brick store to order bricks and blocks tomorrow. Anyone got any links for how I work out how many I need?
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Re: Tez's Workshop Build

Postby Malc2098 » 07 Sep 2017, 16:15

Coming along nicely.

I used this calculator for bricks, blocks and mortar. Found it very useful.

http://source4me.co.uk/calculate_brick_block_mortar.php
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Re: Tez's Workshop Build

Postby TrimTheKing » 08 Sep 2017, 00:33

Looks good mate. You'll be finished before me...

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Re: Tez's Workshop Build

Postby tabs » 20 Sep 2017, 18:51

Cheers

Just ordered bricks for delivery friday. I have gone for these:

http://wienerberger.co.uk/product-searc ... ge-antique
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Re: Tez's Workshop Build

Postby Mike G » 20 Sep 2017, 18:52

Nice bricks. They look so much better with a white mortar rather than grey.
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Re: Tez's Workshop Build

Postby tabs » 20 Sep 2017, 19:19

Yeah, I was thinking about that Mike but I've already got half a bag of red builders sand left over from blinding for the slab. Still I suppose I can always use that elsewhere in my garden project! Would I be right thinking I would just get some yellow builders sand and use normal cement or do I need a special cement to get a whiter colour?
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Re: Tez's Workshop Build

Postby Mike G » 20 Sep 2017, 20:32

White cement rather than OPC. The whiter the sand the better.
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Re: Tez's Workshop Build

Postby tabs » 22 Sep 2017, 10:13

Bricks delivered this morning and really happy with them. Just got to barrow them into garden and will dry set the corners this morning to check squares. Got to drive to builders merchant to pick up some white cement, two bags should do it for the brick facing I think. Was surprised that my local merchant(huws Gray) didn't actually stock it! Also they onl do red builders sand and don't carry 50mm thermalite blocks.

I'm struggling to get hold of the blocks to be honest. Even Travis perkins don't carry them! May have to try builders merchants a bit farther afield but of course delivery charge will be going up and may even be more than the cost of the bloody blocks!lol

Is the mix ratio for the mortar any different with white cement,or is it still 1:5?
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Re: Tez's Workshop Build

Postby Malc2098 » 22 Sep 2017, 10:24

I could only find one merchant that kept a very small stock of 50mm blocks and that was halfway cross the other side of the country from me!

I ended up making a jig out of 50x25mm roofing batten that you could put a 100mmm block in and saw down a gap between to battens to give you o perfect pair of 50mm blocks.

By hand sawing, there is very little dust, and although I bought a concrete saw for about £16 that did the job very well, MikeG reckons any old saw will do.

I will try and sort out the rotation issue with the photos and load them later.
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Re: Tez's Workshop Build

Postby Malc2098 » 22 Sep 2017, 10:34

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Re: Tez's Workshop Build

Postby Mike G » 22 Sep 2017, 10:36

tabs wrote:......Is the mix ratio for the mortar any different with white cement,or is it still 1:5?


I use 6:1:1/2 sand: white cement: lime. The lime is only there for the colour, really, and 6:1 should be plenty strong enough.
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Re: Tez's Workshop Build

Postby tabs » 13 Oct 2017, 20:31

Thanks Mike.

Well this weekend is forecast to be the first one with decent weather since I got the bricks etc so fingers crossed I will be making a start on dwarf wall tomorrow. On the plus side it has given me some time to think about it.

One thing that did pop into my mind was that I hadn't nailed down how wide i should make the opening for the door. I won't be getting any big machines in there initially but eventually I'd like some so need to take this into consideration. What width do you guys recomend to enable getting equipment in there?

Also I had thought that when I do the brick skin I migh just push a rawlplug with a sccrew in it into the mortar so I don't have to drill when connecting the strpping. Bad or good idea?

With regards to the strapping I notice you've used some thin stuff off a roll? Which is the cheapest stuff to ask for that would do the job?

I've seen from reading the threads of other builds on here that you should build the four corners first? Does anyone have any links to videos/instructions for the how to set this out. I have done some brick and blockwork before but just straight walls with no turns so am a bit nervous.
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Re: Tez's Workshop Build

Postby Mike G » 13 Oct 2017, 21:35

If you have a double door then 1500 is about the minimum, as you can still use one leaf effectively. For a single door, I'd be looking for 900 for a workshop, minimum, because stuff you make, or materials you want to take in, could be awkward with anything less.

No, drill your plugs in, and not into the mortar courses.

There are a multitude of different flexible galvanised MS straps on a roll available. They're all pretty cheap.

Building the corners first is the traditional way of doing brickwork, and takes some care. You could alternatively set up some firm corner posts of timber and stretch your line between them, but, frankly, for 3 course it is hardly worth the trouble.
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Re: Tez's Workshop Build

Postby tabs » 13 Oct 2017, 21:52

Thanks Mike , was trying to be a bit too clever there , Lol. Will drill and plug into brick.
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Re: Tez's Workshop Build

Postby tabs » 12 Jun 2018, 20:33

Been a while since I posted on here - various reasons for hold ups but won't bore you!

Anyway heres some pics and more to follow tomorrow

IMG_20180518_164533.jpg
Really happy with how it looks considering its my first attept at exposed brickwork and the bricks were not all the same dimensions! Wish I had got ones that were as it caused me some problems
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Re: Tez's Workshop Build

Postby tabs » 12 Jun 2018, 20:37

Heres another

IMG_20180518_164543.jpg
Not happy with the pointing but I will give that another go sometime. Blocks still to be done but going to use them to get a bit more accurateon the square cos these bloody bricks dimensions are all ver the place
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Re: Tez's Workshop Build

Postby Mike G » 12 Jun 2018, 20:43

Excellent!

I wouldn't put off the pointing, though, or it could be one of those jobs that never gets done.
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Re: Tez's Workshop Build

Postby tabs » 12 Jun 2018, 20:46

I've got the straps on now and will take and post some more pics tomorrow. I've measured up again and do need to do some fettling with the blocks to get totally accurate square.

My measurements on outside dimensions are 441 length(both came within a couple of mm of that) and 276 on the width, one width was slightly shorter at 274.5 mm though.

On my diagonals I have got a 45mm difference though and am wondering how much of this is due to the slight difference in the widths and how much to the bricks not being perfect and how much to it being slighty out of square?

I've done a quick calc using the Cos Rule and assuming it is all due to being slightly out of square and I get one of the 90 degree angles opposite a diagonal I've measured to actually come 90.3 degrees by calculation.

As I said I can use the blocks to improve this but how bad is this sort of error on a 4.4m by 2.8m ish building?
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Re: Tez's Workshop Build

Postby Malc2098 » 12 Jun 2018, 21:03

Looking ok.
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Re: Tez's Workshop Build

Postby Mike G » 13 Jun 2018, 07:47

The difference in measurements between the short ends of the building is trivial, and contributes less than 1mm of the 45mm diagonal difference. I wouldn't even record that on a building survey, where I typically work to the nearest 5mm (ie +or- 2.5mm). Your 45mm difference shows a setting out error: you have a parallelogram.

I wouldn't correct it. If this was a kitchen or bathroom, where having right angle corners is important for fitting stuff in, then yeah, it'd be worth taking some action, but in a workshop? I really can't see what difference it is going to make. If you start trying to have different width plinth walls to correct it, you'll end up with ugly detail differences along those plinths externally, and that could turn into a real pain. Nothing about the superstructure is made more difficult by having non-square corners.
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Re: Tez's Workshop Build

Postby tabs » 13 Jun 2018, 10:41

Cheers Mike. Was just thinking when it came to framing at the corners and putting joists on it might mean too much fettling. Will do as you suggest
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Re: Tez's Workshop Build

Postby tabs » 09 Jul 2018, 10:41

Trying to work out a cutting list so I know how much wood to buy.

I'm going for a single pitched roof and have tried to find an online calculator but to no avail. I'm thinking 6 by 2s at 600mm centres would be ok? The width it would be covering is 2.4m. Are there any guides anywhere that show what the details are of building a single pitched roof? For example details at either end?

I'm also considering making it a green roof eventually ( apparently you start with a layer of EPDM anyway so green part of it does not need install straight away) so in that case there would be extra weight.The websites say around 60-80kg per sq m for the type I'm considering, in this case could someone point me to a website or document that would allow me to do the calculations.
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Re: Tez's Workshop Build

Postby Malc2098 » 09 Jul 2018, 11:10

Not sure of this one helps, but it has slider bars to change the angle and the overhang.

https://www.blocklayer.com/roof/rafter.aspx
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Re: Tez's Workshop Build

Postby tabs » 09 Jul 2018, 21:05

Thanks Malcolm, will take a look. I've found a site that gives joist sizes for flat roofs which is near enough what I will be doing.It says 50x150mm at 600mm centres will do a span of upto 2.97m so will do my 2.4 span easily. Just need to find out now whether this would support a green roof of 60-100kg per sq m.
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