mill supplies in Greenville

GBS Building Supply is a full-service lumber yard and building supply company based in Upstate SC. We sell only the highest quality products.

GBS Building Supply is a full-service lumber yard and building supply company based in Upstate SC. We sell only the highest quality products.

The Mulch Mill manufactures and delivers bulk quantities of quality mulch containing only tree material, no pallets or debris. Our mulch is shredded and screened and is available dyed with non-to…