Footing depth and width will depend on frost lines and local building codes.
The depth and width of a footer for a concrete pad will depend on various factors such as the load that will be placed on the pad, soil conditions, and local building codes. Generally, footers are often at least 12 inches deep and extend beyond the pad on each side by at least 6 inches. It is recommended to consult a structural engineer or local building authority for specific requirements for your project.
A cubic foot is 12" thick 12" wide and 12" deep. .45 cubic feet per 60# bag of concrete
3' wide, about 31'----4' wide, about 24'
Reinforced concrete floors can be designed for a wide range of loads. Different thicknesses and shapes of concrete and arrangements of reinforcing will have different strengths.
6'' thick sand filling, then 9'' thick plain cement concrete 1:4:8 [ ratio] then top layer of Plain cement concrete 1:1.5:3 mixed with concrete mixer. proper vibrator should be used. expansion joint should be after 2.5mts to 3mts alternatively of 12 mm wide and filled with the mixer of hot bitumen sand mixed. by: m.s.chaudhary [civil engineer]
Not square yards, but Approx. 5.24 cubic yards 54'2" = 650" x 7'10" = 94" x 4" = 4" = 244,400 cubic inches / 46,656 cubic inches = 1 cubic yard (36" x 36" x 36")= 5.24 cubic yards
Depends how wide the 3 yard length is and how deep the concrete is put over that area.
131,328 in3, but you should have worked it out for yourself.
About 4 feet deep should be good.
128
To many!
0.246914 cu. yards (6.666667 cu. ft ) of concrete is needed.
If you mean how wide a footer you need, only as thick as the old existing footer. Residential footers are usually way over designed, so there is no reason to make it wider. If you do mean thick, a normal house footer is 8" thick. If you are actually underpinning an existing footer, the dinensions are in front of you as you excavate under it for underpinning.??? Don't make it anymore complicated than that.
You will need 1.36 cubic yards of cement.
You'll need 3.53 cubic yards of cement.
1.24 cubic yards.
Depends on the length of the hole.
you would need 37.33 yards of concrete or 38 to be safe