Steel door-cum-windows for sit-outs and balconies
A lockable door leaf with a side window in one steel frame, running to the floor on a low drained threshold — with the grill continuing across both.
What you can choose
Layout
- Door leaf + side window in one frame
- Side window with opening shutter and lower panel
- Sizes to your plan — e.g. 180 × 210 cm
Door hardware
- Mortise lock, lever handles and key cylinder
- Tower bolts on a second leaf
- 3 hinges per door leaf
Weather
- Low 20 mm threshold with weep slots
- Matching grill pattern
- Zinc-rich at welds + epoxy primer
What goes into it
Every quotation lists this, so you can compare like for like. How prices are worked out →
| Part | LINEA standard | Why it matters |
|---|---|---|
| Sheet steel | 1.6 mm (16 g) TATA Galvano, 120 GSM zinc | Gauge gives stiffness; zinc protects against rust. |
| Frame & mullions | Laser-cut, CNC-folded, tab-located | Square corners and straight frames that fit the opening. |
| Door hardware | Mortise lock, lever handles, key cylinder | The door leaf locks like a normal door. |
| Grill | ¾" GI square tube @ 100 mm | Security bars through the frame; round bar on request. |
| Fixing | Hold-fasts welded, grouted in | Frame locked into the masonry. |
| Finish | Zinc-rich at every weld + epoxy primer | Welds are where rust starts — each one is treated. |
List your openings
Enter the sizes from your plan in centimetres. We send back a drawing and an itemised quotation for each one.
Don't know the sizes yet? Send your plan instead →
You get back a drawing and an itemised quotation for each opening, with the price before GST and GST shown separately. Sizes are overall frame sizes from your plan; we confirm them at site.
Good to know
Can a door-cum-window be locked like a door?
Yes. The door leaf gets a mortise lock with lever handles and a key cylinder; the side window has its own shutters and the grill continues across both.
Will GI steel windows rust in Kerala's monsoon?
We use TATA Galvano sheet with a 120 GSM zinc coating, repair every weld with zinc-rich coating and finish with epoxy primer. Keep the windows painted (your painter applies the top coat) and they stay protected. For coastal sites ask for heavier Z275 zinc — we quote both.
Are glass and paint included?
Our standard price covers the steel window with grill, hinges, handles and epoxy primer, ready for your painter. Glass is fitted by your glazier unless you ask us to include it — either way the quotation states it clearly, line by line.
Is GST included in your price?
Every quotation shows the price before GST, the GST and the total separately, and you get a GST tax invoice from LINEA Steel Fabricators LLP.
Talk to LINEA
Send a photo of your plan or the architect's schedule — that's all we need to start.