Second Fix Carpentry: Skirtings, Architraves, Doors and Stairs
Second fix carpentry technical reference: skirting scribed vs mitred corners, architrave 5-6mm reveal, door clearances (2-3mm sides/head, 8-10mm base) and fire door 3mm tolerance with 3 hinges, staircase second fix to Approved Document K (900mm/1100mm guarding, 100mm sphere rule)