# How much fill do I need

Discussion in 'Landscape Architecture and Design' started by Steeley, Apr 23, 2006.

1. ### SteeleyLawnSite Memberfrom MaineMessages: 84

I need help figuring how much fill I need to fill in a down grade section on a lawn that I will be building a retaining wall to hold in materials the size is 12' by 36' and I need it to be 5' deep, so I have 432sf, I will be filling with sand and a 3 inch top layer with top soil. Any help would be great

2. ### MJM landscapingLawnSite Memberfrom Gorham, MaineMessages: 156

12' x 36' x 5' =2160 square ft.

3. ### eandllandscapingLawnSite Memberfrom Manchester, NHMessages: 9

2160 cubic ft divided by 27 would be 80 yards of fill. It will compact some so you should figure on a little extra.
The loam would be 432 ft divided by 108 which = 4 yards of fill.
good luck.
the rain gods are unhappy with me today.

4. ### NEPSJayLawnSite Senior Memberfrom Scranton, PAMessages: 492

CUBIC feet, theres a little difference.

5. ### start2finishLawnSite Senior Memberfrom Greensboro, NCMessages: 497

add 15-20% for compaction, but make sure you stay three feet from the wall when using equipment, Topside of wall
dont forget your drainage aggregate or slotted pipe.