Window grill price: how it is computed
A grill is priced by the steel in it, the work the design takes and the installation. A simple grid uses far less steel and time than scrolls or a box grill. Measuring and quote are free — pick from our window grill designs.
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Steel weight per metre
| Bar | Weight per metre |
|---|---|
| Square bar 10 mm | 0.78 kg |
| Square bar 12 mm | 1.13 kg |
| Square bar 16 mm | 2.01 kg |
| Flat bar 25 × 3 mm | 0.59 kg |
| Flat bar 25 × 5 mm | 0.98 kg |
| Round bar 12 mm | 0.89 kg |
Computed from the density of steel, 7,850 kg/m³ (Engineering ToolBox). Square bar: side² × 0.00785; flat bar: width × thickness × 0.00785 (mm → kg/m).
Example: one 1.2 × 1.0 m window
| Part | Steel | Weight |
|---|---|---|
| 9 vertical bars, 1.0 m each | Square bar 12 mm, 9.0 m | ≈10.2 kg |
| Frame | Flat bar 25 × 5 mm, 4.4 m | ≈4.3 kg |
| Total | ≈14.5 kg |
Arithmetic example of a simple vertical-bar grill, not a quote. Scrolls, rings or a box grill add steel and hours.
What makes a grill cost more
Design
Scrolls, flowers and sunbursts take more cutting, bending and welding than straight bars.
Box type
Sticks out from the wall — a top, bottom and sides on top of the front.
Openable part
Hinges and a lock so the grill opens from inside.
Paint
Primer and top coat; more coats near the sea.
Steel prices and the grill rule
DTI does not monitor square or flat bars, but its Cebu price check shows the level of steel prices: a 10 mm × 6 m regular deformed bar cost about ₱144 and a 12 mm bar ₱207 in August 2026 (DTI price monitoring, Region 7). In Metro Manila, structural steel wholesale prices were up 3.0% year on year in September 2026 and painting works 9.2% (PSA, 13 Oct 2026).
Installing window grilles needs no building permit (PD 1096 IRR, Sec. 301). But grilles on a window meant for emergency escape must have a quick-opening mechanism so they open from inside; that window needs a clear opening of at least 820 mm × 1 m with the sill no higher than 820 mm (Sec. 808; full text). Ask for one openable grill per bedroom.
How labour and travel enter the quote is in how welding jobs are priced. Doing the gate too? Read sliding vs swing gate.
Send the window sizes and a photo of the design you like. Get a free window grill quote — we measure, make and install in Ronda and southwest Cebu.
Questions
How much does a window grill cost?
It depends on the steel weight, the design and the paint. A simple 1.2 × 1.0 m vertical-bar grill uses about 14.5 kg of steel; send your sizes for a free quote.
How is a grill priced — per square foot or per kilo?
Both are used. Weight shows the steel; the design decides the hours. We quote per window after measuring.
Do I need a permit for window grills?
No. The National Building Code IRR (Sec. 301) exempts installing window grilles from a building permit.
Should a grill open from inside?
On a window meant for emergency escape, yes — the building code requires a quick-opening mechanism (Sec. 808).
Are steel prices going up?
In Metro Manila, structural steel wholesale prices rose 3.0% year on year in September 2026 (PSA).
