SweeneyTodd


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Member Since: 04/30/2012



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Re: Build Your Own Raised Beds

Masik, and any else who are interested:

The raised beds above hold 1.18 yards (32 cubic feet) of dirt if you leave a 3 inch gap at the top of the boards.

How to calculate your dirt needs:

For this box:
Depth x Length x Width
1 ft x 8 ft x 4 ft = 32

Conversion to Yards = Cubic feet / 27 (1.185 as shown above)

For slightly more comlicated depths or sizes, the pattern still works, but everything needs to be converted to the decimal version of measurement:

18" of soil = (18/12)feet = 1.33 feet deep
5'7" long = 67" = (67/12)feet = 5.58 feet long
2'4" wide = 28" = (28/12)feet = 2.33 feet wide

1.33 x 5.58 x 2.33 = 17.29 cubic feet
17.29 / 27 = 0.64 cubic yards

Hope this helps.

And remember, most businesses sell soil or compost by the half yard, so in both of the cases above, you might want to buy topsoil and then supplement it with a few bags of peat, compost, or manure to add nutrients.