Home & Garden Filling Gaps in Parquet Flooring by Gaby 12 May, 2011 4 [/caption]Putty is made from fine oak or birch sawdust mixed with carpenter’s glue. First, clean out the gaps with a thin wire, then fill them with the putty using a knife. Once the putty dries, smooth it out with glass. PuttyWoodworking Share FacebookTwitterPinterestTelegram