Hi we have an old home with jarrah boards. There are huge gaps approx 2-6 mm in the boards. We are getting them sanded and polished and the guy said there is nothing we can really do about the gaps. I noticed back in 02 Taffy put grout/ or gap sealer in his. If you are out there Taffy how do they look now? also what brand of grout or gap sealer did you use. If anyone else has any other ideas let me know. Thanks