Steel sheet, thickness 2.5. If You don't live in Great Britain.
Angle Brackets Heavy Duty - Galvanised Heavy Duty Steel KP5 140x140x65x2.5mm
12 x Metal Galvanised Angle Brackets Heavy Duty Steel L Shape Braces 70x70x55mm
Angle Corner Brackets for Wood 70x70x55x2.0mm Galvanised Heavy Duty Steel L Brac
Timco Restraint Straps Heavy Duty Engineered Galvanised 500-1100/100 Steel Bent
HEAVY DUTY STRAIGHT GALVANISED STEEL BRACKET Perforated Flat Join Plate Mending
Timco Restraint Straps Heavy Duty Bent Galvanised 300-1000/100 Steel Horizontal
