Building a shed

Reggie.

Right you clever lot.

If you were to bolt a shed to the ground how deep do the concrete pads have to be?

Say a 40 x 40 A frame shed

Cavanjack

Reggie. wrote: »

Right you clever lot.

If you were to bolt a shed to the ground how deep do the concrete pads have to be?

Say a 40 x 40 A frame shed

I’d go grant spec so 600x600x600

Tonynewholland

Reggie. wrote: »

Right you clever lot.

If you were to bolt a shed to the ground how deep do the concrete pads have to be?

Say a 40 x 40 A frame shed

If there’s a wall going in just run the foundation. I only ever went 300 deep but on shale here

Reggie.

Tonynewholland wrote: »

If there’s a wall going in just run the foundation. I only ever went 300 deep but on shale here

Not sure how I'm building it yet tbh. Just checking my options.

Thinking of just a machinery shed so might just sheet it to the bottom.

Thinking of buying the steel frame now as there is a price increase threatened

Reggie.

Reggie. wrote: »

Not sure how I'm building it yet tbh. Just checking my options.

Thinking of just a machinery shed so might just sheet it to the bottom.

Thinking of buying the steel frame now as there is a price increase threatened

If your putting any sort of tools/lighter machinery/spares/diesel tanks etc in it.....id be only sheeting down to 6ft

,lads around here are known to screw out sheeting and carry off stuff,a wall they'll have to lift over......plus its a personal preference for me aswel,think it adds a nice finish to a shed vs sheeting to ground

davidk1394

If it was me I'd go 3ft wide by 1ft deep bolt the pillars to it and a 6ft wall around the pillars then.

Dunedin

Reggie. wrote: »

Not sure how I'm building it yet tbh. Just checking my options.

Thinking of just a machinery shed so might just sheet it to the bottom.

Thinking of buying the steel frame now as there is a price increase threatened

Wouldn’t consider for a second sheeting to ground. 6 foot block or mass concrete is the best job and bolt to foundation. It’ll go no where.

Over time sheeting will get hit with machinery and be knocked out here and there. Not secure either to unwanted visitors. Wall better all round job.

SuperTortoise

Reggie. wrote: »

Not sure how I'm building it yet tbh. Just checking my options.

Thinking of just a machinery shed so might just sheet it to the bottom.

Thinking of buying the steel frame now as there is a price increase threatened

I was told it had gone up 90euro/ton lately.

Good loser

Dunedin wrote: »

Wouldn’t consider for a second sheeting to ground. 6 foot block or mass concrete is the best job and bolt to foundation. It’ll go no where.

Over time sheeting will get hit with machinery and be knocked out here and there. Not secure either to unwanted visitors. Wall better all round job.

I'd favour mass concrete over a block wall.

DBK1

Cavanjack wrote: »

I’d go grant spec so 600x600x600

If you’re not going to be putting walls or concrete floors in it straight after building I’d be doing it this way as well.

If walls and floor are going in then as Davidk1394 said will be perfect.

Some lads put the foundation in a bit lower than finished floor level, maybe 200mm or so. When walls are poured and floor in then the pillars are bolted down 200mm in the ground. Super job and never moving anywhere then.

DBK1

Good loser wrote: »

I'd favour mass concrete over a block wall.

Definitely, very little difference in cost and no comparison when it comes to strength. I wouldn’t even consider a block wall, mass concrete all the way.

mengele

davidk1394 wrote: »

If it was me I'd go 3ft wide by 1ft deep bolt the pillars to it and a 6ft wall around the pillars then.

Would one foot deep be enough? What steel would you be putting in the concrete?

The Rabbi

The last shed built here they dug 3ft X 3ft and 2ft deep,poured 1ft of concrete in and two weeks later they bolted the pillars in.Then the pads were topped up as the floor was poured.

davidk1394

mengele wrote: »

Would one foot deep be enough? What steel would you be putting in the concrete?

That's what was done here for the parlor. Rebar went into the foundations. It's built on solid ground so theres no worry of it sinking.

_Brian

I appreciate the advice above is good, but on a 40,40 shed like Reggie suggested, how much additional cost are mass concrete walls up to 6ft going to add.

mengele

Just for arguement sake. With a 40ft x 40ft machinery shed- what should you expect to fit in? Would it be full with 3 tractors attached to a 18ft silage trailer parked side by side. WOuld you have any space in front of each tractor lets say if you wanted to park a fert spinner or a mounted sprayer etc?

Dunedin

_Brian wrote: »

I appreciate the advice above is good, but on a 40,40 shed like Reggie suggested, how much additional cost are mass concrete walls up to 6ft going to add.

Not an awful lot but it’s ‘do it right do it once’ scenario.

_Brian

Dunedin wrote: »

Not an awful lot but it’s ‘do it right do it once’ scenario.

Interesting, I’d have thought it would add significantly to the cost.

Tonynewholland

Dunedin wrote: »

Not an awful lot but it’s ‘do it right do it once’ scenario.

I’ve seen precast walls going in too where it’s hard to get shuttering work done.

lakill Farm

Reggie. wrote: »

Right you clever lot.

If you were to bolt a shed to the ground how deep do the concrete pads have to be?

Say a 40 x 40 A frame shed

€3200 for a 48x40x14ft frame only the other day when I ordered

mengele

lakill Farm wrote: »

€3200 for a 48x40x14ft frame only the other day when I ordered

Thats not too bad. Do you know what rsj sizes are being used? Are they cross bracing?

lakill Farm

mengele wrote: »

Thats not too bad. Do you know what rsj sizes are being used? Are they cross bracing?

8x4 and cross bracing in 1 bay

that's plus vat and collection

Going to do the foundations and use 17ft 9 not 15ft 9 timbers and rejog the X brace so 2 items can be parked in the 1 bay as most trailers are 8ft or less and a 15ft 9 can be tight

Tonynewholland

lakill Farm wrote: »

8x4 and cross bracing in 1 bay

that's plus vat and collection

Going to do the foundations and use 17ft 9 not 15ft 9 timbers and rejog the X brace so 2 items can be parked in the 1 bay as most trailers are 8ft or less and a 15ft 9 can be tight

You should use 7” timber if you going over the 15ft 9

Cavanjack

Tonynewholland wrote: »

You should use 7” timber if you going over the 15ft 9

What about using steel purlins and go with a 20’ bay when you are at it?

The Nutty M

_Brian wrote: »

I appreciate the advice above is good, but on a 40,40 shed like Reggie suggested, how much additional cost are mass concrete walls up to 6ft going to add.

1 cube of concrete will go around 2.7metres in length for an 1800mm x 200mm wall.
So Reggies 40x40 shed would take roughly 16 cubes of concrete to do the walls if 5.4metres is taken out for a roller door and pedestrian door.

Readymix per cube I'm gonna take €75 inc VAT as another rough figure.
16 cubes is €1200 plus forms and men,I'd take a stab at €2200.

What the price against blocks would be i don't know but I'd suspect it'll be dearer overall when you flatten the block wall with the weights you forgot were on. And then have to rebuild.


I bought two sheds just before Christmas,one kit form shed and the other one is steel only. The price went up by nearly 6% just before the new year. I'm interested to see which will be the cheapest when everything is added together.

Tonynewholland

Cavanjack wrote: »

What about using steel purlins and go with a 20’ bay when you are at it?

I’ve never priced them myself so don’t know how they compare but for a machinery shed I’d say they are a great job

dzer2

Tonynewholland wrote: »

I’ve never priced them myself so don’t know how they compare but for a machinery shed I’d say they are a great job

Brilliant for Machinery shed.

Just if you a doing a 20ft spam you need to weld on the lug for the support brace that will be required

Dunedin

Cavanjack wrote: »

What about using steel purlins and go with a 20’ bay when you are at it?

I have steel purlins on a 22’ span in shed here. Done about 13 years and still standing anyways!!

lab man

Tonynewholland wrote: »

I’ve never priced them myself so don’t know how they compare but for a machinery shed I’d say they are a great job

Done a shed here 28 ft purlins rsj

Good loser

I would expect a 225mm cavity wall plastered to cost more than a 200mm mass concrete. Faster too.

mengele

lakill Farm wrote: »

€3200 for a 48x40x14ft frame only the other day when I ordered

Have you any idea on what your expecting the timber purlins and sheeting to be costing you? Is it a 3 bay it is? Will the door be located at the 40ft side?