Joe1888 672 Posted April 7, 2016 Report Share Posted April 7, 2016 (edited) Am going to build a double concrete section garage soonish,, looking for advice on making a concrete base that will be good enough for the job, and cheap as possible... how deep should it be, will rebar be needed? cheers Edited April 7, 2016 by Joe1888 Quote Link to post Share on other sites
slip lead 862 Posted April 7, 2016 Report Share Posted April 7, 2016 At least 6/8" of hardcore or type 1 with 4" concrete with reinforced mesh.. Quote Link to post Share on other sites
Chid 6,377 Posted April 7, 2016 Report Share Posted April 7, 2016 Reinforced bar or mesh is not needed unless its going to be carrying loads of weight .. Minimum id do the concrete would be 4" but 6" would be better 1 Quote Link to post Share on other sites
taz2010 1,297 Posted April 7, 2016 Report Share Posted April 7, 2016 double skin garage footing need to be on solid ground ie clay then 6" concrete with 10mm mesh would be good enough Quote Link to post Share on other sites
Joe1888 672 Posted April 7, 2016 Author Report Share Posted April 7, 2016 good to get different opinions, am even more confused now lol.. before was thinking 4" hardcore then 4" concrete, has to be 2" above ground right? you guys any idea what prices those lorry mixers charge? i was considering getting one of those in, if its to much just hiring a site mixer and trying it myself Quote Link to post Share on other sites
Malt 379 Posted April 7, 2016 Report Share Posted April 7, 2016 Ask a builder to do it for you. Give him some money when he's finished and it will be done properly then! Quote Link to post Share on other sites
Joe1888 672 Posted April 7, 2016 Author Report Share Posted April 7, 2016 Ask a builder to do it for you. Give him some money when he's finished and it will be done properly then! am scottish ffs, think ive still got my first pay packet lol 1 Quote Link to post Share on other sites
David Aiken 253 Posted April 7, 2016 Report Share Posted April 7, 2016 I guess filling in a 28" deep hole, 20' x 13' was over kill for my garage them? 1 Quote Link to post Share on other sites
Chid 6,377 Posted April 7, 2016 Report Share Posted April 7, 2016 good to get different opinions, am even more confused now lol.. before was thinking 4" hardcore then 4" concrete, has to be 2" above ground right? you guys any idea what prices those lorry mixers charge? i was considering getting one of those in, if its to much just hiring a site mixer and trying it myself Take measurements of base and ring your local quarry/concrete yard and tell them how deep and they'll tell you how many metres of concrete you'll need and then see how much there going to charge for said ammount 1 Quote Link to post Share on other sites
Welsh_red 4,307 Posted April 7, 2016 Report Share Posted April 7, 2016 I'd be inclined to get a ready mix Lorry in . Doing it all by yourself will be a right pain in the Arse and back breaking unless u get a few boys in to help . Mixing , barrow then tamping down on your own for the duration will be a nightmare . Better to get it delivered , get a few mates in for a few hours to help barrow then tamp will be quicker . It will cost but if u need to have a few mates for a few days you will have to chuck them some cash aswell so might not be as expensive as you think Quote Link to post Share on other sites
jeppi26 1,855 Posted April 7, 2016 Report Share Posted April 7, 2016 Type the size of your base in this link and it will tell you how much you need mate http://www.easymixconcrete.com/concrete-calculator/?origin=sitelink-m-cc&gclid=COOhjtHy_MsCFckaGwod6TQMSg I paid around £100 a cubic metre pal Quote Link to post Share on other sites
Qbgrey 3,987 Posted April 7, 2016 Report Share Posted April 7, 2016 It depends on the ground how much subase you need if u got 2oomm of top soil or shit ground it must come out,then b based out and compacted properly. I would deepen concrete around perimeter were the sides of garage sit ,where its obviously taken load.shutter it up properly, square,and level then you can pull off concrete with straight edge.concrete's about to 85 pounf a cubic metre,prob more for s part load which it will be. Quote Link to post Share on other sites
Qbgrey 3,987 Posted April 7, 2016 Report Share Posted April 7, 2016 Just noticed you stated double garage,depending on your idea of a double you may well need a full load.6 wheel lorrys are 6cubic,an 8 wheeler is 8cube Quote Link to post Share on other sites
Rabid 1,936 Posted April 7, 2016 Report Share Posted April 7, 2016 Or get a mini mix of 4 cube ! It's not really cost effective to mix anything more than a cubic metre by hand, I have costed it both ways thousands of times, it's my job, ready mix all day long, depends on your area what they charge, expect anything from £70 a cube to £120. 4 inch (100mm) is enough for a double garage, PROVIDING the sub base is sound, and well compacted on good solid up disturbed ground, no made up ground, bust be a good bearing strata 100mm hardcore and 100mm Connie, job done, I love garage bases, knock them out every day. If you decide to mix by hand you must remember, 1 cube of Connie is 2.4 tonnes of gravel, sand, cement and water. If your mixing by hand I would make it 150mm of Connie as you won't get as good a mix as ready mixed Quote Link to post Share on other sites
David Aiken 253 Posted April 7, 2016 Report Share Posted April 7, 2016 Type the size of your base in this link and it will tell you how much you need mate http://www.easymixconcrete.com/concrete-calculator/?origin=sitelink-m-cc&gclid=COOhjtHy_MsCFckaGwod6TQMSg I paid around £100 a cubic metre pal Mine was 21 cubic meters! So at that price £2100! I paid two builders with an electric cement mixer £800! 1 Quote Link to post Share on other sites
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