Are you getting ready to build a deck, sidewalk, patio, or BBQ pit? need to number out how many bags of concrete for article holes or sonotube footings? depending upon how large your project and also where that located, it might be easier and also cheaper to mix your own than bespeak ready-mix. So, if you’re trying to number out how many bags the concrete in a yard for her project, this guide is for you.

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

In this guide, we’ll comment on how countless square feet space in a garden of concrete, various weights of bagged concrete, cubic feet every bag, the variety of bags that make up a yard, and also how many bags top top a pallet. We’ll also explain just how to calculation the amount of concrete you’ll need for a slab, fence post, or sonotube, plus what the dry weight of a garden runs. This is the ultimate guide for deciding even if it is ready-mix or bagged concrete is finest for her project.


Sonotube footings for decks frequently have a deck anchor inserted into the concrete rather of a portion of the post, so they are fully filled through concrete. Calculation the volume that the sonotube making use of its radius and length or depth the is sunk right into the floor (v = π r²h wherein pi or π = 3.14). The table below indicates the lot of concrete essential for different diameters the 4-foot sonotube lengths.

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

(or 3 bags and also a absent 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 garden of concrete is written of cement, sand, and rock or gravel, otherwise recognized as aggregates. The dry contents is bagged and shipped ~ above pallets. Different grades or staminas use various ratios in the blend, leading to varying weights per yard. The load of water included is about half the weight of the cement proportion in the mix.

It takes sixty 60lb or forty-five 80lb bags that 4000psi concrete mix to do a garden of concrete. Mathematically, 60×60 = 3600lbs and 45×80 = 3600lbs, so a dried cubic yard of concrete mix would certainly weigh 3600lbs. Adding water come the mix rises the average weight to around 4000lbs.

Depending on the manufacturer, the ratio of steps to do the concrete mix, elevations, and temperatures, a yard of concrete may need in between 27 and 35 (or more) US-gallons that water. A us gallon that water weighs 8.34lbs, so the variety of gallons boosts the weight accordingly.

Water is necessary for the chemical reaction come harden the powder mix. However, although the doesn’t readjust the overall finished volume much, it does change the early weight. As the concrete cures, much of the water evaporates, reduce the load to around 3700lbs.

How plenty of Yards of Concrete in a Truck

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

On mean most ready-mix concrete trucks bring 10.5 yards or 42,000 pounds, return some lug 12.5 yards. A 48’ tractor-trailer often carries 14 yards, delivery trucks 2 come 3 yards, and also a half-ton truck around a 3rd of a yard of dried mix.

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