One or two pages is fine, 1st page your contact information, qualifications (CISRS part two or Advanced) and a short summary about yourself (IE) I started at 18 years old as a trainee scaffolder and then progressed up to an advanced scaffolder therefore securing supervisory positions. My responsibilities have been to erect, dismantle scaffold as required by clients so on.
2nd page professional experience (IE). Advanced / part two scaffolder, various contracts in the UK including oil & gas on/offshore refineries, Street & site work, power stations, train stations, ect ect.