John Gill Commentary 1 Chronicles 22:15

"Moreover there are workmen with thee in abundance, hewers and workers of stone and timber, and all men that are skilful in every manner of work:" — 1 Chronicles 22:15 (ASV)

Moreover, there are workmen with you in abundance
All the strangers in the land being gathered by the order of David, (1 Chronicles 22:2) who were skilled in all manner of work, as follows:

hewers and workers of stone and timber ;
masons and carpenters:

and all manner of cunning men for every manner of work ;
joiners, carvers