Steel Reinforced Doors

An industry first developed by Superior Doors; our steel doors are designed for applications where the highest rigidity in a door is required.

These doors primary use is in cavity sliders and other sliding applications where space is tight and doors must stay very straight to avoid scrapping or jamming.

There also perfect for locations such as between and internal garage and living space where the temperature and humidity can be very different either side of the door.

Steel x1 Door Specifications - 610-910x1980mm

EPS Solid Core

  • High Density Solid Core Polystyrene
  • Up to 98% Glue Contact area
  • Will not delaminate after impact
  • Enhanced thermal qualities

LockBlock

  • 398x68mm Finger Jointed Pine

Rails & Stiles

  • Rails : 60mm Finger Jointed Pine
  • Stiles : 30mm Finger Jointed Pine

Steel Insert

  • Custom designed and precision engineered
  • Anti corrosive pre galvanised steel
  • 38.1 x 29.9mm with 1.6mm wall thickness for added rigidity

Steel x2 Door Specifications - 610-910x1980mm

EPS Solid Core

  • High Density Solid Core Polystyrene
  • Up to 98% Glue Contact area
  • Will not delaminate after impact
  • Enhanced thermal qualities

LockBlock

  • 398x68mm Finger Jointed Pine

Rails & Stiles

  • Rails : 60mm Finger Jointed Pine
  • Stiles : 30mm Finger Jointed Pine

Steel Insert

  • Custom designed and precision engineered
  • Anti corrosive pre galvanised steel
  • 38.1 x 29.9mm with 1.6mm wall thickness for added rigidity
PLEASE NOTE: Stock doors are held with 3 and 4mm skins only. 4.75, 6 and 9mm skins available on request.

Rails & Stiles

  • Rails : 60mm Finger Jointed Pine
  • Stiles : 30mm Finger Jointed Pine

Lockblock

  • 398x68mm Finger Jointed Pine

EPS Core

  • High Density Solid Core Polystyrene
  • Up to 98% Glue Contact area
  • Will not delaminate after impact
  • Enhanced thermal qualities

Rails & Stiles

  • Rails : 60mm Finger Jointed Pine
  • Stiles : 30mm Finger Jointed Pine

Lockblock

  • 398x68mm Finger Jointed Pine

EPS Core

  • High Density Solid Core Polystyrene
  • Up to 98% Glue Contact area
  • Will not delaminate after impact
  • Enhanced thermal qualities

Steel Insert

  • Custom designed and precision engineered
  • Anti corrosive pre galvanised steel
  • 38.1 x 29.9mm with 1.6mm wall thickness for added rigidity

Full Details

  • Base material from New Zealand steel
  • Precision manufactured to 38.1 x 29.9mm, with 1.6mm wall thickness for added rigidity. Pre Galvanised for clean finish.
  • Z250 - 275 (Zinc content weight)
  • G250 grade material (NZ steel specification)
  • 100 percent NZ Made
  • ISO9000 Accredited Manufacturer

Steel 1

Steel Insert High Density EPS Solid Core Polystyrene

Steel 2

Steel Insert High Density EPS Solid Core Polystyrene
PLEASE NOTE: Stock doors are held with 4mm skins only. 3, 4.75, 6 and 9mm skins available on request.