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Name: Ryan Baskett
Bellevue Washington, USA
Jul 17, 2017 2:17 PM CST
Ok, so I've been working on a lawn replacement project and I think at this point I'm considering filling the yard with topsoil before spreading grass seed. I have a fairly big yard, but I'm trying to determine how much soil I might need. From what I understand so far, topsoil is measured in cubic yards, right? So if I got like 12 cubic yards of topsoil versus 1 would that be like a TON? Or, if I were to order a, "truckload of topsoil" how many cubic yards are included in that? Maybe I can take a picture of the yard to give better reference. I live in Bellevue WA and we're looking to plant Kentucky Bluegrass with grass seed. Any idea where I should order from?

Thanks for any help!
Name: Rj
Just S of the twin cities of M (Zone 4b)
Garden Ideas: Level 1 Plant Identifier Million Pollinator Garden Challenge
Jul 17, 2017 2:20 PM CST

Another resource would be the King County extension service and their master gardener program.
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[Last edited by crawgarden - Jul 17, 2017 3:09 PM (+)]
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Name: Sharon Rose
Grapevine, TX (Zone 8a)
Grace of the Lord Jesus be with all
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Jul 17, 2017 6:56 PM CST
Ryan-- Any soil/dirt moving company will take your lawn measurements with depth, then they will tell you how many cubic yards of topsoil you will need. Contact a couple of companies for price and compare how much dirt they say you need.

Many blessings for your success!
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Name: Yardenman
Maryland (Zone 7a)
Jul 18, 2017 5:19 AM CST
Back of the envelope calculation says you need about 3 cubic yards per 1,000 square feet of lawn. A typical dump truck (from my experience) delivers about 10-12 cubic yards. So a truckload would cover about 3,000 to 4,000 square feet of lawn 1" deep.

But keep in mind that "topsoil" from most sources is junky and clumpy fill dirt of poor quality. If you need serious volume to raise the lawn level (as I did recently myself), that is good enough.

But if you are top-dressing existing lawn to plant new seed, I think you might be better off just adding 1/4" of compost from a nursery after spreading seed.

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