timber shoring question timber shoring question archeng59 (Structural) (OP) 31 Jan 06 09:29 working on shoring design. shoring drawings have a note stating "MIN 85% F.O.H.C." anyone know what F.O.H.C. means? RE: timber shoring question JAE (Structural) 31 Jan 06 09:58 I think it means "Free of Heart Center" lumber - try googling it to see more. RE: timber shoring question archeng59 (Structural) (OP) 31 Jan 06 10:40 thanks, JAE. I wondered if it was a reference to heart wood. couldn't find it in any of my texts. didn't think about using google.