Keystone Lintel HD/K-90 4000mm

For Cavity widths 90-105mm Length (mm) Height (mm) Thickness (mm) Total UDL kN 3:1 Total UDL kN 19:1 600 1200 109 2.9 30 22 1350 1500 136 2.9 30 22 1650 2100 161 2.9 40 35 2250 2550 199 2.9 40 35 2700 3000 199 3.2 40 35 3150 3600 199 3.2 35 32 3750 4200 199 3.2 33...