Buyer's guides.
Plain answers to the questions behind an order — sizes, grades, which type where. Written from the questions we get on quotes. Each one ends the same way: send your list and we quote it the same day.
What size rebar for the job
Common bar sizes per member — slab, footing, column, beam, CHB — plus Grade 33 vs 40 vs 60 and pieces per ton.
Read the guide → Steel SupplyGI or BI pipe: which to use
Water, fire sprinkler, gas, structural, fence — which pipe for each, schedule choices, and the rules for welding galvanized.
Read the guide → Steel SupplyC-purlin size and spacing
Section and thickness by span, purlin spacing by roofing sheet, and what changes in the typhoon belt.
Read the guide → Electrical SupplyChoosing a circuit breaker
Breaker-and-wire pairings per the PEC, plug-in vs bolt-on, AT vs AF, and where ground-fault protection is required.
Read the guide → PPEConstruction site PPE checklist
The baseline for everyone on site and per-task additions, with the RA 11058 rules on who provides and who pays.
Read the guide →Need numbers instead?
Sizes and weights live on the product pages — deformed bar, GI & BI pipe, C-purlins, I-beam, angle bar and the rest of steel supply. Send your list — spec sheet, drawing or BOQ — and we quote it back the same day.
Reviewed July 2026 · Southend Construction & Industrial Supplies, Dasmariñas, Cavite