







Covering a region with black Mexican Rock 
20180914 

From Lenton: I have a 48 sq. feet area that I need to cover.
How many cubic ft would I need to cover 48 sq. ft.? Answered by Penny Nom. 





The volume of a slab 
20170121 

From Russell: Working with a segment of a circle. The O.D. is 3.440" the length of the chord is 3.130 I need information on the volume of the largest area. I would like to know (in thousands of an inch) how tall would the largest area need to be to equal .1143 cubic inches If you need more info I can send it Thanks in advance Answered by p. 





810 slabs of concrete 
20080401 

From Wesley: I'm making a 4" x 4" x 2" (Inches) concrete slab (approximately 750 of them, I'm going to plan for 810 for extra material). I'm trying to find out how many bags of cement I need. Each 60 lbs bag makes approximately .5 cu/ft. Answered by Harley Weston. 





Concrete slab 
20070126 

From Cindy: How much concrete will it take to pour a slab 16ft.By 18ft. 3inches deep Answered by Penny Nom. 





Calculating volume of concrete, dirt, sand, anything. 
20061117 

From Debbie: [This article contains a special calculator to help you find the volume (for example, the cubic yards) of material required to fill (or empty) a space if you know the length, width and depth.]
We are wanting to pour a 24'x30' slab that is 5" deep. How many cubic yards of cement do we need? Answered by Penny Nom. 





A concrete slab 
20060213 

From Cheryl: A concrete area that will be used for picnic benches will measure 20 ft on each side. The concrete slab will be 8 inches deep. How many cubic feet of concrete will be needed to construct the patio? Answered by Penny Nom. 





A concrete slab 
20050729 

From Armand: I am
planning to pour a concrete slab over an existing slab in my garage
which is very uneven, with a depth variation from 2 1/2 inches to 5 1/2
inches from level. I'm afraid to over estimate concrete since it will be
wasted but worse, I'm afraid to underestimate. I've broken the slab down
into four sections with the following being the four dimensions, can you
tell me how much concrete I will need please, I would very much
appreciate your help.
1 6ft/8in x 20ft x 4 1/2 in. thick
2 16ft/10in. x 20ft x 3 1/2 in. thick
3 6ft/6in. x 16in. x 5 1/2 in. thick
4 6ft/6in. x 8ft. x 4in. thick
Answered by Penny Nom. 

