Home / Steel Supplies / Cold & Hot Formed Hollow Sections / Square Hollow Section Square Hollow Section Depth x Width (mm) * Select an option... 20 x 20 25 x 25 30 x 30 40 x 40 50 x 50 60 x 60 70 x 70 80 x 80 90 x 90 100 x 100 120 x 120 140 x 140 150 x 150 180 x 180 200 x 200 250 x 250 300 x 300 Thickness (mm) * Select an option... 2.0 2.5 3.0 3.5 3.6 4.0 5.0 6.0 8.0 10.0 12.0 12.5 Cut Length (mm) Square Hollow Section quantity Add to Quote Category: Cold & Hot Formed Hollow Sections Related products Circular Hollow Section Select options Rectangular Hollow Section Select options