How to Dig the Foundations: How to Build an Extension (2)

[@al-azimahmed1188]

I'm a plumber by trade, so it's brilliant to watch other tradesmen explaining things properly and giving all the relevant information about the project. We'll. Done lads good job and good video. Will be following your videos

[@chazevans1044]

I work on site doing footings, every footing I've done has had steel rebar in, at what point does it not require steel?

[@amy_rose1986]

In the uk I’ve only seen rebar in big builds

[@TravelChimp]

probs one of the best explained home foundations vid on here. Cheers guys

[@sawleyram7405]

Cheers for this lads. About to dig the footings for a single story extension at my house (just to save a little on labour and have everything ready for the brickies) -- great to get a heads up on the things to look out for.

[@Unknown-si8yx]

How deep did you have to dig and any tips? I'm going to dig my own as well

[@adrianuk8102]

Any reason why you didn’t use reinforced mesh before you poured concrete in? Been a brickie for over 25 yrs, every extension i’ve build always made sure i had steel bars and lifted it up on half bricks and then poured concrete over it. At times i even drilled bars into an existing house footings and left them sticking out so when i poured concrete i always thought it bonds better. Makes me wonder Was i doing it wrong all them years? 😂

[@brickrightbuildinglandscaping]

Nice little introduction into foundations there with some key points Justin brickright 👍

[@kevinchan351]

no steel reinforcement in footings?

[@osmanamjid2432]

Don't really need it just a 1 story extension And yes the Americans like to add steel rods/rebar in all there mixes even slabs

[@jeesjees2]

No weeping tile, gravel capillary barrier or soil change under slab for that matter?

[@Bibg867]

Well explained video thank you. Could I ask do you need to reinforce the concrete in footings ? Thanks in advance

[@seanm3226]

No steel in footer?

[@BerkleyBuilds]

Great explanation. I feel you left out trees and that they can affect the depth of foundation. Trees can cause serious damage to foundations if not properly accounted for.

[@lesthiele4921]

I enjoyed your video, I not a builder but i was just curious why there was no reinforcing.

[@HomebuildingMagazine]

It depends on the requirements of building regulations - the weight & design of the intended structure, materials, type of soil, history of earthshifts etc. In this case the foundations for the extension were actually deeper than the foundations for the house - built back in the 1950's with much fewer regulations.

[@glenn20081965]

Do you still need footings if you're not having walls. I'm planning on folding doors all round. Would a concrete slab base suffice .

[@mamoonnaseer1886]

Brilliant video, how muct concrete did you pour? is it 2/3 meters?

[@lindsaybrockwell8144]

This is brilliant. My husband I planning to do some work to our house. Question what do you attach the string to, to get that perfect guide line.

[@MrCipry78]

For a back garden room actually a one bedroom apartment with brick walls the footing must be same size you done there? Thank you

[@mmm-mk7tj]

Brilliant videos. I have seen all of them. It would be interesting to see the costs involved

[@enrikoenrike1894]

Don't you tie steel rods to the existing building. There will be some sight movement in the ground and eventuall, you will see it obvious on the wall cracks.

[@XxDiamondBubbles364xX]

That's better 😊 When someone says they're doing a how to that generally means they're gonna teach you HOW TO do something. This vid i find helped so i've subscribed

[@krazykillar4794]

Excellent video, I subscribed hoping there's more like this . He makes it sound so easy and simple . Thank you !

[@TalksWithRyan]

This is how I’m doing mine. I brought my new footing up level with the existing footer and laying 8x8x16 block 4 courses high. What would you recommend to anchor or fix my new block to the existing ? Just drill and tap rebar?

[@TheAlfonzoBonzo]

Where was the metre measurement taken from? Is it DPC level as ground level isn’t always the same all the way around a property

[@nickkirton9579]

Great explanation and visuals - thank you

[@Dailymailnewz]

How deep is that foundation? How deep should be a foundation a house where the walls are max 2.5 meters tall?

[@gjojo8207]

I want to do a 2 storey extension myself! Wish me luck

[@letsgocamping88]

How did you level the footing?

[@dwrobotics2180]

This is amazing. This knowledge is invaluable.

[@RebornRockerVids]

What about if the soil is only a couple of feet thick (at most) on top of solid chalk?

[@hamishpitwell170]

With chalky ground the building inspector will only make you do down so far as chalk is a solid ground to build from

[@samsmith2696]

did you Rebar existing or dig under existing before concreting?

[@張點點-s6o]

What is OPC 53 grade cement?

[@dkaloupis75]

Question. Is it possible to request from a building inspector lets say today or next month to check foundation levels, pour foundations and stop the work for 4 years?

[@HomebuildingMagazine]

In the UK, a Building Regulation application is valid for three years from the date of deposit. If you have started the works within the three years, there is no time limit to finish. However the onus is on the owner to ensure regular visits to check progress.

[@topsntails3856]

Is it acceptable to butt joint new concrete to existing? No need to dig under existing footing and start new concrete there?

[@HomebuildingMagazine]

It entirely depends on what you're building, how it fixes to the existing structure and the results of any ground survey.

[@jesshothersall]

@@HomebuildingMagazine How do you know if you need to dig under? I had Building regs approval (for a 2 story extension), but that wasn't mentioned? (There's no subsidence in my area)

[@smeargut1809]

I dug it by hand and yes it took a long time.

[@morrisveiga]

Hi. How much should you expect to pay a builder to dig and fill footings? Excluding the cement itself. Thanks.

[@burkemccoy8828]

Charge for time, and for any rental equipment charges on top of that. An hourly rate aims to cover overhead, wages, and sometimes the profit too. Material cost are their own charge.

[@kamgunner5920]

Where in the country you located?

[@iramwarriah9613]

How deep should the footings be for the extension my builders has done it to about 10cm!!!🤔

[@HomebuildingMagazine]

It all depends on the earth, weight of construction, existing building & footings... BUT, 10cm doesn't sound like enough! Building regulations will specify the correct depth for the construction, so you'll need to consult building regs to ensure these are sufficient.

[@iramwarriah9613]

Homebuilding & Renovating thank you for taking the time to reply much appreciated.

[@davesmith729]

10cm haha fmlll 😂😂😂

[@Billy_Bull_Sheeter]

Is about 1 foot adequate for a single brick wall for a shed. I'm hitting clay at about 1.5 foot

[@charliemallindine8164]

Is it ok to have only a 1 meter foundation with tree roots and clay around like that

[@hamishpitwell170]

Charlie Mallindine depends on the trees, the clay needs to be gravely if it’s pure soft clay the building inspector will ask for you to go down deeper, I recently had to go down 2 meters in order to find half decent gravel mixed with the clay

[@fowkespaul9793]

dont you need rebar in the footings for a building???????

[@immyhuss]

BC has advised the firm sandy soil that is typical for my street a strip foundation at 900mm depth would be adequate for 2 story. We are planning a rear infill extension. I've done a trial excavation to 1.2m next the exisiting outrigger. I think I've hit hit the foundation. It wasnt possible to dig deeper with the tools I had and the time. Would it be normally required to dig to the same depth and "join" the new foundations to the old? Can you have foundations at different levels? Brilliant little series.

[@solo-repair9374]

Yes you can have step foundations

[@solo-repair9374]

Did you say 'if your on clay they at least want your dig to find ballast or sand

[@womblestacker7993]

Great video looking to have extension and new garage built

[@mysticalglowtv1796]

Where is your steel??

[@hamishpitwell170]

Mystical Glow TV footings in the uk doesn’t require steel, steel is only used in the oversite

[@MrJohnnynapalm7]

On a practical aspect, what do you do if too much concrete happens to have been poured into the foundations - how do you counter this?

[@HomebuildingMagazine]

Get it out with a shovel before it dries!

[@clothedwiththesun]

No rebar in footings?

[@HomebuildingMagazine]

Not required in this build. UK building regs don't specify rebar as essential, unlike other countries with more earth shifts & movement.

[@filitish5703]

Hi,what is the thickness of your concrete mix,thank you.

[@HomebuildingMagazine]

This is a pre-mixed concrete, ratio decided by the provider based on the requirements of the build. Check out this great article on foundations > www.homebuilding.co.uk/foundations-explained/

[@filitish5703]

@@HomebuildingMagazine thank you,how many milimeter the depth of concrete mix from base of foundation,

[@HomebuildingMagazine]

the foundations for this particular build were 1000mm deep.

[@davesmith729]

600 what wide ? Ml inches ?

[@thelazycat_]

No bars needed?

[@HomebuildingMagazine]

Not in this build - not essential in the UK

[@thelazycat_]

@@HomebuildingMagazine not essential because of building standards? But strength wise the country does not matter right?

[@HomebuildingMagazine]

It's more to do with the make-up of the ground, and the solidity of it - the UK doesn't have as much ground movement as, for example, the US or Asia, so steel rebar for small structures isn't always necessary. Large structures / houses, absolutely, but small > medium extensions, not so much.

[@FoxFox0077]

No rebar?

[@jesshothersall]

Don't believe we normally have it in the UK in house foundations, and it's a menace, I have rebar in my concrete outer window sills, and over the years and weather, the rebars have rusted, and are now blowing the window sills apart.

[@AliBaba-tb9zj]

Mate , you the BEST son. London

[@scottleft3672]

Oh how i miiss (NOT) the joys of knockin batch after batch, not out of bags, but a pile of gravel and sand, and a half bag of cement to each load , barra after barra..... working for people who wont rent a petrol mixer and havent got the power on yet....at least you then know how they did it in the old days...a mattock is better than a larry hoe in that sitch.

[@richymcg8945]

Can I ask ,why so much concrete

[@womblestacker7993]

Good video

[@eddyz67]

doesn't it need rebar

[@buildermarkdarrin6517]

Good vid but Why no steel reenforcement ?

[@agentcarbunkle]

Might not need it if its single storey?

[@Zlinky111]

Great Vid. Thank you. : )

[@jefflosey1561]

Wow soil has to be really solid there. No pump, no rebar, no hold downs/j-bolts

[@haroon420]

For basic extensions, I’ve been involved in 2 or 3, I don’t think any of them had rebar. But I’m not builder. I’m a customer, so I don’t know the regs. Just my observations.

[@JAQ274]

Thanks a lot sir

[@tarnveerbassi5786]

Why don’t you use other things instead of concrete?

[@ifell3]

Got me subbed

[@HomebuildingMagazine]

Glad to hear it! Get the Homebuilding & Renovating magazine too!

[@adreenryan2901]

You don't need to go as deep if you have rebar .Rebar is cheaper than concrete.

[@RiderReview]

Good watch

[@craigturner7675]

Band of Builders!!!!!!!

[@johnillsley9179]

Nice BoB jacket!

[@majorkonfuzion1007]

no rebar?.. well no earthquakes no rebar i guess

[@umakanthvasudevan7400]

I need to raise the foundation of an existing single storey house

[@theopen2180]

No steel reinforcement??? Without steel, you are make dog house or farm house.

[@HomebuildingMagazine]

In the UK we don't always use steel rebar, although it depends on the size & weight of the build, the make-up of the ground, and the stability of the area. Very few earth shifts here, unlike many other countries.

[@BlueGamerDude]

english foundations are weird

[@markwoollacott8402]

Make sure the lads aren’t wearing trainers on site please! Good video though ......

[@aswclassicsdorset1743]

Those trainers are steel toe capped which makes them legal to be worn, but I still would use leather boots

[@davidfox7983]

Dig by hand Ah No thanks