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Anyone familiar with soil group "GW"? Prints call for 12" of sub base, soil group GW. My aggregates supplier does not know what GW is, only #s/DOT specs, so what gravel/stone should I price?
 

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I've seen that, and what my supplier has is #2, #4, #5, #8 etc. Nothing so called "well graded" Does it mean I have to buy multiple size stone and mix it? They also have #53 and #73 but those have lots of fines
 

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Anyone familiar with soil group "GW"? Prints call for 12" of sub base, soil group GW. My aggregates supplier does not know what GW is, only #s/DOT specs, so what gravel/stone should I price?
Have an engineer to specify exactly what they want. Other than that you can show the supplier this specs
 

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