SPAX Flooring Screws

Now the boiler is installed and the radiators in the dining room and extension have been moved it's time to lift the dining room floor and insulate underneath it fully. Not looking forward to it, as the boards are old and will probably split. According to various on-line comments these fancy German screws are just what you need when you the boards back if you don't want them to squeak.

(Still back blipping)