BI & GI

Steel Pipes & Tubing

Steel pipe and tubing off our own racks: our house lines of GI and BI pipe in Schedule 20 and 40, light-wall fence tube, BI and GI square and rectangular tube, stainless pipe, and GI and BI nipples and threaded fittings in nearly 500 size combinations.

Steel Pipes & Tubing

Product range

Also in stock

GI and BI pipe, Schedule 20 and 40Square and rectangular tube, BI and GIStainless pipe, Schedule 20 and 40Nipples from 1in to 12in long, all diameters

Where it's used

01

Water Lines and Risers

GI pipe carries water service lines, risers, and tapping runs where plastic will not do. Schedule 40 for pressure and buried runs, Schedule 20 for lighter duty; your plumber specifies.

02

Fences, Gates, and Railings

Fence tube and square tube frame up gates, grills, and railings fast. GI resists rust for exposed work; BI takes paint and welds cleanly for fabricated pieces.

03

Frames and Fabrication

Square and rectangular tube build trusses, canopy frames, furniture, and truck racks. Match the wall thickness to the span and load; heavier walls weld with less burn-through.

How ordering works

Send diameters, schedule or wall thickness, and lengths. Pipe sells per 6m length; nipples and fittings per piece. For threaded runs, list every nipple length you need, chances are it is on the wall.

What we can supply

Full product range

Common sizes, grades, and standards we stock or source for this category. Sizes and specs guide your order; send us your list and we will confirm stock and pricing.

GI and BI Pipe

  • GI pipe

    Our house lines, Schedule 20 and 40, 1/2in to 4in, 6m lengths, plain end.

  • BI pipe

    Black iron in the same sizes, for railings, frames, and sprinkler and gas lines per your designer.

  • Fence tube

    Light-wall GI and BI fence tube, 1/2in to 4in, the economical pick for fences, gates, and railings.

Square and Rectangular Tube

  • Square tube

    BI and GI, 3/4in x 3/4in up to 2in x 2in, 1.0mm to 2.0mm wall, 6m lengths.

  • Rectangular tube

    BI and GI, 1in x 2in up to 2in x 4in, 1.0mm to 2.0mm wall, 6m lengths.

Stainless Pipe

  • Stainless pipe

    Schedule 20 and 40, 1/2in to 4in by 6m, with matching stainless fittings.

Nipples and Threaded Fittings

  • GI and BI nipples

    One of the deepest nipple walls in Cebu: 1/2in to 4in diameters, 1in up to 12in long, galvanized and black iron.

  • GI and BI fittings

    Elbows, tees, couplings, bushings, bell reducers, unions, caps, and plugs, 1/2in to 4in.

Stocked at our yard

Brands we carry

Our own GI and BI pipe lines, stocked deep in the schedules and sizes fabricators and plumbers ask for every day.

King Premium

GI and BI pipe, Schedule 20 and 40

Ace

GI and BI pipe

Queen

GI and BI fence tube

Prince

GI and BI fence tube

Common pipe and tube sizes

GI and BI pipe1/2 inch to 4 inches, Schedule 20 and 40, 6 meter lengths
Square tube3/4 x 3/4 up to 2 x 2 inches, 1.0mm to 2.0mm wall, 6 meter lengths
Rectangular tube1 x 2 up to 2 x 4 inches, 1.0mm to 2.0mm wall, 6 meter lengths
GI and BI nipples1/2 to 4 inch diameters, 1 inch to 12 inches long

Bring a sample or a photo if you are matching an existing line, we will size it at the counter.

Common questions about steel pipes & tubing

What is the difference between Schedule 20 and Schedule 40?

The wall thickness. Schedule 40 has the heavier wall for pressure lines, buried runs, and threading; Schedule 20 is lighter and cheaper for railings, frames, and low-pressure duty. Your plumber or engineer specifies which.

GI or BI, which one do I need?

GI (galvanized) is zinc-coated and resists rust, so it goes outdoors and on water lines. BI (black iron) is uncoated, welds and paints easily, and costs less, so it goes on fabricated frames and protected runs.

Do you thread pipe on site?

We do not cut or thread. Instead, our nipple wall runs from 1in up to 12in long in every diameter we carry, so most threaded runs assemble straight off the shelf without custom threading.

Need pricing on steel pipes & tubing?

Send the items and quantities, a specialist replies with pricing, stock, and delivery options within one business day.

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