Are you obtaining ready to construct a deck, sidewalk, patio, or BBQ pit? require to number out how plenty of bags that concrete for short article holes or sonotube footings? relying on how huge your project and also where that located, it might be easier and cheaper come mix your very own than bespeak ready-mix. So, if you trying to figure out how countless bags the concrete in a garden for your project, this guide is because that you.

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To mix a yard of 4000psi concrete you’ll require ninety 40lb, seventy-two 50lb, sixty 60lb, forty-five 80lb, or fourty 90lb bags of mix. A dry garden of concrete weighs about 3600lbs and needs 32 to 34 gallons of water. A yard of concrete will make a 4” thick, 81ft² slab.

In this guide, we’ll comment on how plenty of square feet space in a yard of concrete, various weights that bagged concrete, cubic feet every bag, the number of bags that make up a yard, and how many bags top top a pallet. We’ll likewise explain just how to calculate the amount of concrete you’ll need for a slab, fence post, or sonotube, plus what the dry weight of a yard runs. This is the ultimate guide for deciding whether ready-mix or bagged concrete is best for your project.


Sonotube footings for decks frequently have a deck anchor placed into the concrete rather of a portion of the post, for this reason they are completely filled through concrete. Calculate the volume the the sonotube utilizing its radius and length or depth it is sunk into the ground (v = π r²h wherein pi or π = 3.14). The table listed below indicates the amount of concrete essential for different diameters that 4-foot sonotube lengths.

Concrete because that Sonotube Deck Footings
Sonotube DiameterVolume60lb Bag (0.45ft³)80lb Bag (0.6ft³)
8” x 4ft1.393ft³3.1 or 4 bags

(or 3 bags and a rock or two)

2.32 or 3 bags
10” x 4ft2.181ft³4.84 or 5 bags3.635 or 4 bags
12” x 4ft3.14ft³6.98 or 7 bags5.23 or 6 bags

How much Does a yard of Concrete Weigh

A yard of concrete is written of cement, sand, and stone or gravel, otherwise known as aggregates. The dry contents is bagged and shipped on pallets. Different grades or strengths use different ratios in the blend, bring about varying weights every yard. The load of water added is about fifty percent the load of the cement ratio in the mix.

It take away sixty 60lb or forty-five 80lb bags that 4000psi concrete mix to do a yard of concrete. Mathematically, 60×60 = 3600lbs and 45×80 = 3600lbs, so a dried cubic garden of concrete mix would weigh 3600lbs. Including water come the mix increases the mean weight to approximately 4000lbs.

Depending on the manufacturer, the proportion of measures to make the concrete mix, elevations, and temperatures, a garden of concrete might need in between 27 and also 35 (or more) US-gallons of water. A us gallon of water weighs 8.34lbs, therefore the number of gallons increases the weight accordingly.

Water is essential for the chemical reaction come harden the flour mix. However, although the doesn’t change the all at once finished volume much, that does adjust the early stage weight. Together the concrete cures, much of the water evaporates, reduce the load to approximately 3700lbs.

How plenty of Yards the Concrete in a Truck

The amount of weight a truck can lug depends on what it is designed to carry. Some factors affecting loads are whereby it is traveling and also when. Hills and also bridges deserve to restrict load sizes, and weight restrictions may vary in between jurisdictions and also even seasonally. Additionally, statutory united state weight borders of 80,000 pounds ~ above tractor-trailers restrict lots to in between 43,000 and 47,000 pounds, as do 48,000 pounds ~ above 3-axle cement trucks.

On typical most ready-mix concrete trucks lug 10.5 yards or 42,000 pounds, back some bring 12.5 yards. A 48’ tractor-trailer regularly carries 14 yards, shipment trucks 2 to 3 yards, and a half-ton truck about a 3rd of a yard of dried mix.

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To determine your vehicle’s carrying capacity, identify the GVWR and also subtract that is curb weight. A 1/2-ton truck with a 6600lb GVWR and also a curb weight of 5100lbs, has actually a fill capacity that 1500lbs, including the driver, passengers, and cargo. It no recommended come exceed the fill capacity.