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How much cement mix for a 20x20 deck?

Updated: 9/26/2023
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7y ago

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That depends on what depth you want the concrete !

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7y ago
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Q: How much cement mix for a 20x20 deck?
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How many concrete hollow blocks per 1 bag of cement?

you wouldn't even need 1 bag of cement and there are also lots of variables, thickness, mix ratio, bag sizes?


How many bags of readymix will 1 bag of portland?

5 or 6. An 80 lb. bag of ready mix concrete will make about 1/2 cubic foot of concrete. A 94 lb. bag of portland cement mixed with 1 1/2 cu. ft of stone (coarse gravel) and 1 cu. ft. of sand will make 3 cubic feet of concrete or 6 times as much. (this is a common 1:2:3 mix) Quikcrete ready mix is often made with 1 part cement, and 2 1/2 parts each sand and stone. A 1:1 1/2: 3 mix is a stronger mix but you get less volume, at 5 1/2 cubic feet per bag of cement.


How do I calculate the amount of cement needed?

First, things are not made of cement- they are made of concrete- which consists of cement, sand, gravel and water. Mix them using 1 part cement, 1.5 parts sand, 3 parts gravel. To calculate how much CONCRETE you need, multiply depth X width X length in inches, then divide by 1728. This will tell you the number of cubic FEET of concrete. To get the number of cubic YARDS, divide the cubic feet by 27. If you are using packaged concrete mix (Sakrete is one) then an 80 lb bag makes 0.6 cubic feet of concrete. NOTE: If you are working with concrete for the first time- do not add too much water (weakens the concrete) and do not get wet concrete on bare skin- it will cause a chemical burn. Wash it off promptly if you do.


How many bags of pre-mix cement is needed to mix 1 cubic yds?

Cement comes in bags that weigh 94 lbs. The volume of the bag is approximately 1 cubic foot. If you want to mix concrete which is a mixture of a coarse aggregate (gravel) and a fine aggregate (sand) and something to bond the two aggregates together (cement) then firstly you need to know the strength concrete that you require. For 1 cubic yard of 3000psi (pounds per square inch) strength you will need about 6 bags cement 12 cubic feet of sand and 24 cubic feet of gravel. Rule of thumb is the ratio should be 1:2:4 (cement:sand:gravel)


How many bags of cement are needed to mix 1 cubic yard of concrete?

typically one pallet, i believe theres 42 80lb bags on a pallet.

Related questions

How much sand and aggregate to mix with one bag of cement?

equal parts to mix


How much water is required in 1 bags of cement?

it depends on the type of mix and water cement ratio.


How much does a 60lb of cement mix cover?

That would depend on how thinly you spread it.


How much sand rock and cement is needed to mix 1 yard of concrete?

19,000lbs of rock. 1340 sand. 338 cement.


Mix 1 part cement with 4 parts sand how much sand do you need for 2 kilos of cement?

8 kilos sand to the 2 kilos cement.


Can you mix a water based paint with a cement mixture?

Yes you can. Substitute 20% of the water for the cement mix with latex paint (Water based paint) and mix slow and thorough. Don't over used too much paint it will damage the integrity of the concrete.


A six sack of concrete mix has how much cement in it?

The answer is, remarkably, 6. Answer: "6 sack" or "6 bag mix" has six bags of cement per cubic yard of concrete mix. Since each sack/bag contains 94 lbs of dry cement, this equals 564 lbs of cement per cubic yard of concrete.


How much cement needed to mix one cubic meter concrete?

4 bags of 50 kg each= 200 kg of cement.


How much sand and cement you need for 2000 bricks?

@ 1:5 mix, 15 cement and 71 25kg bags of sand (1,175kgs)


Is adding water to cement irreversible or revirsible?

If you have added too much water to your mix just add more sand and cement ;but do this right away.


How much sand do you need for concrete?

A good mix is four or five of sand to one of cement.


What happens when you mix oil with cement?

The mix won't set properly, and the lifespan of your cement form will be shortened considerably.