Allowable Load of All-round System Scaffolding The Max Allowed Load of Standard The Max Allowed Load of Transom Step Distance Allowed Load Length Concentrative Load in Middle of Span Uniforms Distributed Load M KN/piece M KN KN/M 0.5 40.0 1.00 4.5 12.0 1.0 30.0 1.50 3.5 7.0 1.5 25.0 2.00 2.5 4.5 2.0 20.0 2.50 2.0 3.0 Lift: Distance Between Top and Bottom Ledger 3.00 1.5 1.6 All-round System Scaffolding and Components Standard ?8X3.25X3115 ?8X3.25X2615 ?8X3.25X2115 ?8X3.25X1615 ?8X3.25X1115 Standard End ?8X3.25X500 Ledger ?8X3.25X2400 ?8X3.25X1800 ?8X3.25X1200 ?8X3.25X900 Collar ?8X3.25X235 Plank Hook On 229X50X1.8X2400 229X50X1.8X1800 229X50X1.8X1200 Screw Jack with Base Plate ?8X708 Screw Jack with Swivel Base Plate ?8X708 Adjustable U-Head Jack ?8X708 Diagonal Brace 2400X3000 1800X2000 1200X2000 900X1500