No work today - It's Sunday. But David left a message on the answering machine to say that they would be here at 8 on Monday morning to start the work with the steels.
PS: in answer to Padraig's question, RSJ stands for Rolled Steel Joist. You will find a full explanation in Wikipedia. I have to admit I didn't read the full article. I'm not that interested in every technical detail of the construction!