Workshop Drawings

[Brad93]

I've enquired through a few members on this forum about having a workshop built and it's just too expensive to have someone else do the steelworks especially at the current steel prices.

So I'll do the steel work myself and the erecting. But I need someone to do the calculations and engineering drawings for the steels and cladding.

Can anyone advise an consultant or company they've used before?

Frame will be galvanised and the stanchions /columns will need to be set 300mm odd into Cones/j bolts the ground so when the concrete floor gets laid I've got no base plates impeding floor space and sweeping etc.

I know very little about concrete bases so I need a floor that will take (in the future) a lathe up to 5 ton. Plus the mill, another lathe, surface grinder etc.

Cladding I'll probably go with 40mm insulated sheets on the walls and 60mm on the roof.

Roller shutter door too.

 

[gaz1]

brad if you based it on how a factory is built

you would fill it with normal insulation with a metal skin on the outside of the building onto a frame

 

[sako243]

Brad are there any barn builders near you? I was having a chat with a neighbour who does this kind of stuff and was very useful to just have a chat with around the construction method I wanted for a garage. They knock together this kind of stuff on a very regular basis and he's able to get a better price for galvanising (for example) than I could.

In terms of the floor it largely depends on what you're building it onto for strength. If you've got a nice flat floor then the actual weight you put onto it will be less relevant as it can be spread out evenly. I've posted this picture before but this was my workshop floor 24h after pouring - it's actually way rougher than they could get it because if they'd floated or polished it it would have been too slippery if oils etc., went onto it.

I'm on what is essentially bedrock - very compact and hard shale but that slab is C40 6" thick reinforced with A252 and a signle expansion joint cut 1" in the surface roughly where the dogs are. I've quite happily lifted up the JCB on the edge of its bucket and rear stabilisers and that comes in at 6.5 tonnes. The actual tonnage of your lathe etc., is largely irrelevant on it's own - you would want to know what the pressure they exert is - for example if your lathe is 5 tonnes but sits on 5 square metres then a fat bloke in stilletos will be harder on the concrete.

If you're building on mud then your slab may need to be more complex - I suspect a 2" slab with me would have served the same purpose but it was also a case of getting the floor flat and higher than the outside and at the time it was cheaper to chuck more concrete than faff around with sub-base and packing it down.

 

[mtt.tr]

I have a good architect and engineer if you want numbers

 

[Brad93]

I've been quoted over £100k for what I want

 

[gaz1]

 

[mtt.tr]

I've been quoted over £100k for what I want

Seems steep

 

[Barking Mat]

Re: concrete floors.

Soon, I'm putting down hardcore, 30 odd centimeters, compacted, then 15 cms of concrete, been told anymore is overkill for my needs.

Speaking to the national body who inspects cranes, car lifts etc, he recommended that where my 4 post lift and heavy machinery goes, 30 cms of concrete in pads is better.

Hard-core is a lot cheaper than concrete.

So I'll put in concrete pads first, then hard-core round them, then pump in the concrete floor.

Just a thought.

 

[Fraserb]

I've been quoted over £100k for what I want

Jesus, what are you building. We put up some big sheds and could do some workshop for that.

 

[Brad93]

I have a good architect and engineer if you want numbers

Please Matt. Experience with agricultural/portal frame buildings required obviously. Especially for the cladding aspect how it meets with the frame and the

 

[gaz1]

the last video gives you both systems brad

we use both methods for uk factorys both are just as good as the other

 

[Brad93]

20x10m 4m to eaves. With a bit on the side, replacing our current lean-to 10x5m

2 roller shutter
1 man door.

 

[Brad93]

We are London clay, I dug to 8 foot for my pond, all clay.

a membrane is essential for most stuff round here or it just sinks.

 

[Fraserb]

Please Matt. Experience with agricultural/portal frame buildings required obviously. Especially for the cladding aspect how it meets with the frame and the

Our dairy building is clad and roofed with insulated sheets, can't remember the thickness though, basically theyre just used like normal box profile sheets.

 

[Pete.]

What about the guy that built the tractor shed for @awemawson?

 

[Robotstar5]

Try contacting @snowcat I'm sure he's posted about putting up a Portal frame build.

 

[mtt.tr]

Please Matt. Experience with agricultural/portal frame buildings required obviously. Especially for the cladding aspect how it meets with the frame and the

He does conversion of them, but his contact deals with steel frame

 

[Hitch]

Expensive job at the moment. The guy building a couple of units next door to work is thinking about mothballing the project.
Pads in, and frame ordered. Said the people originally set to do the cladding have pulled the plug on the original quote from last year, and are struggling to even tie down a new price.

Working out cladding details isn't difficult, work out the purlin spacing to suit the sheets, horizontal/verticals. Metsec or similar will supply it all cut and punched on request.
Eaves beam is a little trickier, just sketch it up using standard eaves beam sections.
Sheet it in and fit flashings.

Tie bars and wind braces are just simple trigonometry.


Door frames etc a little more fidly, but nothing too complicated.

Much of the information is readily available, from looking through the blue/green books.

A quiet weekend with a notebook would sort it.
Sketch it all up, get it checked over...

I drew up a few agri sheds from scratch at a previous job. Just get given the section sizes for the basic building dimensions.

 

[500e]

We do a few buildings Brad but to far away if you want some one to talk to give me a PM & I will give you a phone No.

"As @Hitch Said the people originally set to do the cladding have pulled the plug on the original quote from last year, and are struggling to even tie down a new price"
Cladding prices are crazy same as steel they say price can/will be different from quote on delivery!! nightmare time for pricing any job

 

[daleyd]

@. is who you want, he’s tripping over the things…