Door Installation & Frame Management: Swiss SIA 343, VKF Fire Doors EI 30, Acoustic SIA 181 & BKP 221
Operational guide for Swiss joiners, door installers, and interior fit-out contractors: doorset fitting under SIA 343, VKF fire resistance certificates EI 30 / EI 60, acoustic doors under SIA 181, burglar resistance RC2/RC3, and BKP 221.