Top 10 Pre Zinc GI Square Steel Pipes 3x1 1/2 inch bestseller 2026
Pre-galvanized (pre-zinc) square steel pipe 3x1 1/2 inch is rust-resistant and long-lasting, suited to structures, roof frames, fences and general steelwork. Buy at factory prices from OneStockHome with delivery across Thailand.
55644708
฿ 406.54
BrandOneStockHome
3x1.5 in (75x38 mm), 1.7 mm thick, 6 m long
15.90
Galvanized Rectangular Tube 3x1.5 in (75x38 mm), 1.7 mm wall, 6 m long, made to TIS 107-2566. Pre-galvanized (zinc coated) for good rust resistance, suited to outdoor and humid locations. Smooth surface and square corners that are easy to cut and weld. Used for roof frames, rafters, floor joists, fence posts, carport frames and extension structures that carry heavier loads. Medium wall thickness for general work.
72288802
฿ 357.94
BrandOneStockHome3x1.5 in (75x38 mm), 1.4 mm thick, 6 m long
13.40
Galvanized Rectangular Tube 3x1.5 in (75x38 mm), 1.4 mm wall, 6 m long, made to TIS 107-2566. Pre-galvanized (zinc coated) for good rust resistance, suited to outdoor and humid locations. Smooth surface and square corners that are easy to cut and weld. Used for roof frames, rafters, floor joists, fence posts, carport frames and extension structures that carry heavier loads. Medium wall thickness for general work.
99692937
฿ 571.03
BrandOneStockHome3x1.5 in (75x38 mm), 2.3 mm thick, 6 m long
21.10
Galvanized Rectangular Tube 3x1.5 in (75x38 mm), 2.3 mm wall, 6 m long, made to TIS 107-2566. Pre-galvanized (zinc coated) for good rust resistance, suited to outdoor and humid locations. Smooth surface and square corners that are easy to cut and weld. Used for roof frames, rafters, floor joists, fence posts, carport frames and extension structures that carry heavier loads. Thick wall that carries more load and bending, suited to structural work.
81724180
฿ 485.05
BrandOneStockHome3x1.5 in (75x38 mm), 2 mm thick, 6 m long
19.00
Galvanized Rectangular Tube 3x1.5 in (75x38 mm), 2 mm wall, 6 m long, made to TIS 107-2566. Pre-galvanized (zinc coated) for good rust resistance, suited to outdoor and humid locations. Smooth surface and square corners that are easy to cut and weld. Used for roof frames, rafters, floor joists, fence posts, carport frames and extension structures that carry heavier loads. Medium wall thickness for general work.
70275827
฿ 290.65
BrandOneStockHome3x1.5 in (75x38 mm), 1.2 mm thick, 6 m long
11.40
Galvanized Rectangular Tube 3x1.5 in (75x38 mm), 1.2 mm wall, 6 m long, made to TIS 107-2566. Pre-galvanized (zinc coated) for good rust resistance, suited to outdoor and humid locations. Smooth surface and square corners that are easy to cut and weld. Used for roof frames, rafters, floor joists, fence posts, carport frames and extension structures that carry heavier loads. Thin wall and light weight, for work that does not carry heavy loads.
91958950
฿ 262.62
BrandOneStockHome3x1.5 in (75x38 mm), 1 mm thick, 6 m long
10.30
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Galvanized Rectangular Tube 3x1.5 in (75x38 mm), 1 mm wall, 6 m long. Pre-galvanized (zinc coated) for good rust resistance, suited to outdoor and humid locations. Smooth surface and square corners that are easy to cut and weld. Used for roof frames, rafters, floor joists, fence posts, carport frames and extension structures that carry heavier loads. Thin wall and light weight, for work that does not carry heavy loads.
21019036
฿ 790.65
BrandOneStockHome3x1.5 in (75x38 mm), 3.2 mm thick, 6 m long
29.50
Galvanized Rectangular Tube 3x1.5 in (75x38 mm), 3.2 mm wall, 6 m long, made to TIS 107-2566. Pre-galvanized (zinc coated) for good rust resistance, suited to outdoor and humid locations. Smooth surface and square corners that are easy to cut and weld. Used for roof frames, rafters, floor joists, fence posts, carport frames and extension structures that carry heavier loads. Thick wall that carries more load and bending, suited to structural work.