How much concrete do I need for a 4×4 fence post?
How Much Concrete For A 4×4 Fence Post?
||50 Lb Bags
Is 2 feet deep enough for fence posts?
2 feet is the minimum depth that you should dig your fence post holes for. To dig the holes one-third to one-half of the post’s aboveground height, is a general formula. The deeper you dig the holes, the more stability your fence has.
How do you calculate concrete for fence posts?
Calculate Concrete Volume
With the volume of the submerged post and the volume of the hole figured out, subtract the post volume from the hole volume, and you will have the volume of concrete needed for each hole. Simply multiply that amount times the number of posts to get a total quantity.
How many 50lb bags of concrete do I need for a fence post?
For reference, a 40-pound bag of concrete typically yields about 0.3 cubic feet, a 50-pound bag yields 0.37 cubic feet, a 60-pound bag yields 0.45 cubic feet, and an 80-pound bag yields 0.6 feet. This means that in the example above, each post would require about eight 50-pound bags.
How much Postcrete do you need per post?
“Usually one bag of postcrete per post is enough, however you can use a two bags per post if you feel this is needed.
Can you put dry concrete in a post hole?
Fast-setting concrete is ideal for setting posts because there’s no mixing—you simply pour the dry concrete from the bag right into the hole, then add water.
How many square feet does a 50 lb bag of quikrete cover?
60 cubic feet. One 50-pound bag of Quikrete Fast Setting Concrete Mix yields about . 375 cubic feet. For example, if you need to cover 33.333 cubic feet, using 60-pound bags of concrete, divide 33.333 cubic feet by .
How many bags of quikrete do I need for a 10×10 slab?
90lb bag of concrete yields about 0.025 cubic yards, total required concrete quantity for 10 × 10 slab of 6 inch thick = 1.85 cubic yard , so number of bags of 90lb of concrete = 1.85/0.025= 74bags, therefore 10 × 10 slab of 6 inch thick, generally you need 74 bags of 90lb ready mix concrete.
How many 80 lbs bags of concrete make a cubic yard?
One 80lbs bag of Quikrete Concrete Mix will yield approximately . 60 cu ft. So it will take 45 bag to equal one cubic yard of concrete.
How much area will a 60 lb bag of concrete cover?
@ 2″ thick a 60 lb bag of concrete will fill 2.7 sq. ft. @ 4″ thick a 60 lb bag of concrete will fill 1.35 sq. ft.
How many bags of concrete do I need for 100 square feet?
Ans. :- 7.6 no of cement bags (381.30 kgs) are required for 100 sq ft rcc roof slab 4 inch thick m20 grade concrete. Ans. :- 7.6 bags (381.30 kgs), 9.5 bags (476.10 kgs) & 11.4 bags ( 570.8 kgs) cement are required for 100 sq ft rcc roof slab 4 inch, 5inch & 6 inch thick respectively in m20 grade of concrete.
How much area will a 50 lb bag of concrete cover?
Regarding this, how much does a 50 lb bag concrete cover?, as 133 lb concrete = 1 CF, so a bag of 50 lb concrete = 50/133 = 0.375 CF, therefore, a 50 lb bag of concrete approximately cover around 1.5 square feet area upto standard depth of depth of 3 inch for your patio and sidewalk.
How much does a 90 lb bag of concrete cover?
In this regard, “how many 90 lb bags of concrete in a yard?”, generally you will need 40 bags of 90lb concrete mix to make a cubic yard of concrete that will cover around 108 square feet area upto a standard depth of 3 inch for your slab and patio.
Do you need wire mesh for 4 inch slab?
No, they do not. Larger projects or slabs may need steel reinforcement to provide support or extra strength. Wired mesh can also help resist breaking.
How many yards of concrete is 24×24?
For example, for a concrete slab that is 24′ X 24′ X 4”, simply enter 4 in the Thickness/Depth field, 24 in the Width field, and 24 in the Length field. Click “Calculate”. Your answer should be 7.11 yards. Note: The Concrete Volume Calculator can also be used to determine yardage for aggregate products.
How many bags of cement do I need for 12×12?
To determine how many bags of concrete you will need, divide the total cubic yards needed by the yields, at 4 inch thick, for a 12×12 slab you will need 1.76 yards of concrete, so number of 80lb bag of concrete = 1.76 ÷ 0.022 = 80 bags, No. of 60lb bag = 1.76 ÷ 0.017 = 104 bags & No.
How strong is 4 inches of concrete?
A concrete patio slab should be at least 4 inches thick and have a compressive strength of 3,000 PSI.
Can I use chicken wire to reinforce concrete?
Materials such as chicken wire, stucco mesh, wire screening, expanded metal, fence wire or fiberglass cloth should never be used as primary reinforcement because their properties are too variable or they are not sufficiently strong. You cannot rely on these materials.
How much stronger is concrete with rebar?
Rebar that’s off by just an inch can reduce the overall strength of the concrete by 20 percent. That’s why rebar has it’s own inspection. Because it’s very important to the strength of the structure. The ridges you see in rebar help it make a tight bond with the concrete.
How much weight can a 4 inch slab support?
Typically we like to limit the weight to about 40 lb/sqft on an unknown 4″ slab. In most cases you can go to 80 lb/sqft in isolated spots, but unless you know roughly what the soil bearing and reinforcing is for that slab you might be looking at breaking.
How much weight can 6 inches of concrete?
Basically, 3000 psi is the flat slab of a home that has the dimension WxLxD (about 6″). This means that that slab of concrete will hold 3,000 lbs per square inch. Example: Semi-truck with a full load in a 40-foot trailer would weigh in at 115,000 lbs.
Can you pour a 2 inch concrete slab?
If done properly, new concrete can often be poured right over an existing slab. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregate, and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.
How thick should my concrete slab be?
Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.
How thick does concrete need to be for heavy equipment?
Six inches of thickness should be more than adequate for areas where heavy equipment will be driven and parked. For lesser loads, four inches.
How much concrete can load?
Imposed loads varies from approximately 1.5 kN/m2 (153 kg/m2) in domestic buildings to approximately 10 kN/m2 (1053 kg/m2) in heavy industrial areas. 500 kg/m2 is typical for office, storage space and similar.