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Steel security door quotes from fabricators near you

A free quote from security door manufacturers and installers across South Africa. One measuring sheet, no obligation.

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900 x 2100
A heavy black steel security door with a solid kick panel and mesh upper section on a South African house
Material
40 x 40 mm tube frame, 2 mm kick panel, mesh
Sizes
Up to 1,200 x 2,400 mm per leaf
Locking
Deadbolt or multi-point lock, keyed both sides
Finish
Galvanised, then powder coat
Lead time
Made to measure in 7 to 14 working days
Tag DR-02

A steel security door is built heavier than a standard gate: a thicker frame, a solid or mesh infill and a lock that bolts into the frame itself. People ask for one on a back door, a side entrance, a granny flat or a shop where a light gate would not last. Tell us the opening size, how it must lock and where you are, and steel fabricators in your area quote you directly. We simply pass the request on, we do not make or fit anything ourselves.

Steel gauge and frame sizes

The weight of a steel door is mostly the frame. A light door uses 20 x 20 mm tube with 1.2 mm wall, while a properly heavy one uses 40 x 40 mm tube or a 50 mm flat bar frame with a 1.6 to 2 mm wall. Infill bars should be at least 16 mm solid, spaced no more than 100 mm apart, or 12 mm flat bar woven into a mesh. A thicker frame resists twisting if someone leans on the door or the wall settles over the years.

Ask what thickness is quoted. Two doors can look the same and differ by several kilograms of steel.

Kick panels, mesh and bar infill

  • Kick panel: a sheet of 2 mm steel across the bottom 600 to 900 mm. It stops the door being kicked and keeps rain and dogs out.
  • Expanded mesh: a diamond mesh welded into the upper frame. It keeps small hands and tools out while letting air through.
  • Vertical bars: the classic look, with good airflow and a clear view. Add a mid rail so bars cannot be spread.
  • Fully solid: a plate-skinned door for stores and plant rooms. It is no use as a ventilated screen.

For a kitchen door, mesh or bars in the top half give airflow when the inner door is open.

Locks and escape routes

Heavy doors suit a deadbolt-style lock with a bolt throwing at least 20 mm into the frame, or a multi-point lock for tall doors. A key that works from both sides is a risk if the key is lost in a fire. Keep a spare on a hook near the door but out of reach of the opening, and make sure every bedroom has another way out. Any door that serves as a fire exit for staff should open without a key from the inside. For lock types, read security door locks.

Fixing and finishing

A strong door in a weak wall achieves little. In face brick, expect anchor bolts into the brick at about 400 mm spacing. In hollow block or old plaster, the installer may need chemical anchors or a steel flat bar behind the frame to spread the load. Finish matters too: hot-dip galvanising followed by powder coat lasts many years inland, and is worth the extra within about 5 km of the sea. Compare the fitting details on the quote with security door installation.

What to include in your request

  • Width and height of the opening in mm, smallest of three readings
  • Infill: bars, expanded mesh or fully solid
  • Frame tube size and plate thickness if you know them
  • Lock type, and whether it must open without a key from inside
  • Wall type, colour and distance from the sea

Steel Security Doors for different properties

  • Houses: a mesh-topped steel door on the back and side doors where a light gate would not last
  • Townhouses and complexes: a steel door on a ground-floor patio entrance, in colours the body corporate allows
  • Flats and apartments: a robust door on a ground-floor entrance or a stairwell landing
  • Farms and smallholdings: heavy steel doors on the farmhouse, workshop, feed store and chemical room
  • Shops and restaurants: a solid or mesh steel door at the staff entrance and the storeroom
  • Offices and practices: a steel door for the server room, archive or cash office
  • Factories and warehouses: heavy plate-skinned doors for plant rooms, stores and loading bays
  • Schools, clinics and churches: bulk steel doors for classrooms, stores and clinic pharmacies

Frequently asked questions

How much does a steel security door cost?
A heavy single steel door of about 900 x 2,100 mm costs roughly R5,500 to R12,000 supplied and fitted. Mesh infill, galvanising, a multi-point lock and double doors all raise the price. Light bar doors are cheaper but less sturdy.
Is a steel security door the same as a fire door?
No. A security door resists force, while a fire door is tested to hold back flame and smoke for a set time. If a building regulation requires a fire-rated door, say so in your request, as it needs a certified door and frame.
Can a steel security door be fitted to a wooden frame?
It can be, but the screws then do the work and wooden frames split. Most installers prefer fixing the steel frame into the brickwork around the opening. Say what the frame is made of so the quote is realistic.
Will a steel door rust?
Bare steel will, especially on the coast. A galvanised frame with a good powder coat lasts many years. Touch up chips quickly with zinc-rich paint so rust cannot creep under the coating.

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Get a free security door quote

Fill in the measuring sheet: each door, gate or window with its width and height in millimetres, the finish you want and how it should be fixed. Manufacturers, installers and locksmiths who work in your area quote you directly. Free, no obligation.

Measuring sheetSheet no. assigned when sent

Openings

No.Door, gate or windowWidth mmHeight mmQtyRemove
O1
O2
Up to 12 lines. Measure inside the frame; not sure? Leave the size empty.

Add a width and height in millimetres to see the openings to scale, the total area and a rough price.

Options and problems

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