Cavity units

Sometimes, styling a space also means making the most of that space—it’s a common challenge for ensuites, walk-in wardrobes, bathrooms, and laundries.

In these cases, sliding cavity door systems are the perfect blend of style and efficiency. They can complement a wide range of aesthetics before sliding conveniently and discreetly into the unit housed within the wall, saving on the room that would otherwise be taken up by a hinged door.

When selecting your Cavity Unit, it is important to select the right Cavity Unit for the size and weight of your doors: whether it is for a single door or double door slider, and whether you would like a soft closer mechanism.

We offer both steel cavity units (called the Platinum range) and timber (Slimline), which are compatible with our extensive range of interior door designs. Platinum cavity units provide added strength. They’re ideal for heavy floor-to-ceiling doors, tiled walls, and wet areas where moisture can damage timber units.


Platinum 4000 Steel Cavity Units

Corinthian Doors Platinum 4000 Cavity Units can carry wider and heavier doors. They are suitable for homes and commercial applications and are available with an optional Soft Closer to prevent slamming.

Features of the Platinum 4000 range include:

  • Steel construction can carry heavier and wider doors – up to 65kg single door and 45kg per door for double sliding door applications.
  • Steel construction is resistant to warping, bowing, and moisture damage.
  • A jump proof twin roller track with dual axle ball bearing for smooth running.
  • Suitable for tiled wall applications.
  • Press-release option for easy door retrieval from the cavity pocket in flush jamb configuration.

The Platinum 4000 Cavity Unit range can also come with an optional Soft Closer Kit. When selecting your Soft Closer Kit please order based on the weight of your door.

  • Soft Closer Kit – for doors weighing 10kg to 19kg
  • Soft Closer Kit – for doors weighing 20kg to 39kg
  • Soft Closer Kit – for doors weighing 40kg to 65kg

Ask your builder or hardware retailer to include a Soft Closer Kit when ordering a Platinum 4000 Cavity Unit.

Platinum 4000 Single Double
90MM Stud Thickness $ $
2040 x 620 436 845
2040 x 720 436 845
2040 x 770 436 845
2040 x 820 436 845
2040 x 870 462 895
2040 x 920 462 895
2040 x 1020 530 -
2340 x 620 487 940
2340 x 720 487 940
2340 x 770 487 940
2340 x 820 487 940
2340 x 870 530 1020
2340 x 920 530 1020

SOFT CLOSE KIT - ADD TO CAVITY PRICE Single Double
$ $
Soft Close Kit - To Suit 16kg to 19kg Door + 95 + 190
Soft Close Kit - To Suit 20kg to 39kg Door + 95 + 190
Soft Close Kit - To Suit 40kg to 65kg Door + 95 + 190

Platinum 4000 Single Double
90MM Stud Thickness $ $
2040 x 620 498 980
2040 x 720 498 980
2040 x 770 498 980
2040 x 820 498 980
2040 x 870 530 1210
2040 x 920 530 1210
2340 x 620 555 1130
2340 x 720 555 1130
2340 x 770 555 1130
2340 x 820 555 1130
2340 x 870 665 1330
2340 x 920 665 1330
Cavity to suit 13mm plaster $ $
+ 73 + 145

Platinum 4000 - Additional fittings Single Double
90MM Stud Thickness $ $
up to 870 + 11 + 22
up to 1200 + 11 + 22

SOFT CLOSE KIT - ADD TO CAVITY PRICE Single Double
$ $
Soft Close Kit - To Suit 16kg to 19kg Door + 95 + 190
Soft Close Kit - To Suit 20kg to 39kg Door + 95 + 190
Soft Close Kit - To Suit 40kg to 65kg Door + 95 + 190

Platinum 4000 Single Double
90MM Stud Thickness $ $
2040 x 620 410 810
2040 x 720 410 810
2040 x 770 410 810
2040 x 820 410 810
2040 x 870 510 1000
2040 x 920 510 1000
2040 x 1020 565 -
2340 x 620 498 970
2340 x 720 498 970
2340 x 770 498 970
2340 x 820 498 970
2340 x 870 575 1140
2340 x 920 575 1140
2340 x 1020 625 -
Cavity to suit 13mm plaster $ $
+ 88 + 173

ADDITIONAL FITTING SETS $
Fitting/roller sets 63
Guide Glide Kit 13
Jexis Press-Release Unit 81

SOFT CLOSE KIT - ADD TO CAVITY PRICE Single Double
$ $
Soft Close Kit - To Suit 16kg to 19kg Door + 95 + 190
Soft Close Kit - To Suit 20kg to 39kg Door + 95 + 190
Soft Close Kit - To Suit 40kg to 65kg Door + 95 + 190

Platinum 4000 Single Double
90MM Stud Thickness $ $
2040 x 620 446 970
2040 x 720 446 970
2040 x 770 446 970
2040 x 820 446 970
2040 x 870 482 875
2040 x 920 482 875
2340 x 620 510 990
2340 x 720 510 990
2340 x 770 510 990
2340 x 820 510 990
2340 x 870 520 1010
2340 x 920 520 1010
Cavity to suit 13mm plaster $ $
+ 120 + 237

SOFT CLOSE KIT - ADD TO CAVITY PRICE Single Double
$ $
Soft Close Kit - To Suit 16kg to 19kg Door + 95 + 190
Soft Close Kit - To Suit 20kg to 39kg Door + 95 + 190
Soft Close Kit - To Suit 40kg to 65kg Door + 95 + 190

Platinum 4000 Single Double
90MM Stud Thickness $ $
2040 x 620 498 1000
2040 x 720 498 1000
2040 x 770 498 1000
2040 x 820 498 1000
2040 x 870 675 1360
2040 x 920 675 1360
2040 x 1020 755 -
2340 x 620 745 1415
2340 x 720 745 1415
2340 x 770 745 1415
2340 x 820 745 1415
2340 x 870 930 1635
2340 x 920 930 1635
2340 x 1020 930 -

SOFT CLOSE KIT - ADD TO CAVITY PRICE Single Double
$ $
Soft Close Kit - To Suit 16kg to 19kg Door + 95 + 190
Soft Close Kit - To Suit 20kg to 39kg Door + 95 + 190
Soft Close Kit - To Suit 40kg to 65kg Door + 95 + 190

Platinum 6000 Steel Cavity Units

Corinthian Doors Platinum 6000 Cavity Units can carry single doors up to 125kg and double sliding door applications up to 85kg per door.

Features of the Platinum 6000 range include:

  • Steel construction is resistant to warping, bowing, and moisture damage.
  • A jump proof twin roller track with dual axle ball bearing for smooth running.
  • Suitable for tiled wall applications.

Press-release option for easy door retrieval from the cavity pocket in flush jamb configuration.

Platinum 6000 Single Double
90MM Stud Thickness $ $
2040 x 620 645 1270
2040 x 720 645 1270
2040 x 770 645 1270
2040 x 820 645 1270
2040 x 870 705 1405
2040 x 920 705 1405
2040 x 970 960 1100
2040 x 1020 845 1660
2040 x 1070 960 1100
2040 x 1120 960 1100
2040 x 1200 845 1660
2340 x 620 780 1555
2340 x 720 780 1555
2340 x 770 780 1555
2340 x 820 780 1555
2340 x 870 855 1695
2340 x 920 855 1695
2340 x 970 1100 2190
2340 x 1020 980 1935
2340 x 1070 1100 2190
2340 x 1120 1100 2190
2340 x 1200 980 1935

Platinum 6000 Single Double
90MM Stud Thickness $ $
2040 x 620 735 1460
2040 x 720 735 1460
2040 x 770 735 1460
2040 x 820 735 1460
2040 x 870 780 1585
2040 x 920 780 1585
2040 x 1020 960 1905
2040 x 1200 960 1905
2340 x 620 865 1735
2340 x 720 865 1735
2340 x 770 865 1735
2340 x 820 865 1735
2340 x 870 930 1895
2340 x 920 930 1895
2340 x 1020 1080 2160
2340 x 1200 1080 2160
Cavity to suit 13mm plaster $ $
+ 73 + 145

Platinum 6000 Single Double
90MM Stud Thickness $ $
2040 x 620 675 1310
2040 x 720 675 1310
2040 x 770 675 1310
2040 x 820 675 1310
2040 x 870 745 1450
2040 x 920 745 1450
2040 x 1020 875 1705
2040 x 1200 875 1705
2340 x 620 810 1575
2340 x 720 810 1575
2340 x 770 810 1575
2340 x 820 810 1575
2340 x 870 885 1715
2340 x 920 885 1715
2340 x 1020 1010 1965
2340 x 1200 1010 1965
Cavity to suit 13mm plaster $ $
+ 88 + 173

ADDITIONAL FITTING SETS $
Fitting/roller sets 219
Guide Glide Kit 13
Jexis Press-Release Unit 81

Platinum 6000 Single Double
90MM Stud Thickness $ $
2040 x 620 575 1200
2040 x 720 575 1200
2040 x 770 575 1200
2040 x 820 575 1200
2040 x 870 605 1225
2040 x 920 605 1225
2040 x 1020 845 1625
2040 x 1200 845 1625
2340 x 620 695 1395
2340 x 720 695 1395
2340 x 770 695 1395
2340 x 820 695 1395
2340 x 870 770 1545
2340 x 920 770 1545
2340 x 1020 1200 2250
2340 x 1200 1200 2250
Cavity to suit 13mm plaster $ $
+ 120 + 237

Platinum 6000 Single Double
90MM Stud Thickness $ $
2040 x 620 885 1905
2040 x 720 885 1905
2040 x 770 885 1905
2040 x 820 885 1905
2040 x 870 990 1965
2040 x 920 990 1965
2040 x 1020 1260 2625
2040 x 1200 1260 2625
2340 x 620 1110 2190
2340 x 720 1110 2190
2340 x 770 1110 2190
2340 x 820 1110 2190
2340 x 870 1170 2330
2340 x 920 1170 2330
2340 x 1020 1270 2775
2340 x 1200 1270 2775

Platinum 9000 Steel Cavity Units

Corinthian Doors Platinum 9000 Cavity Units are suitable for sliding doors required for floor to ceiling applications and can carry single doors up to 125kg and double sliding door applications up to 85kg per door.

Features of the Platinum 9000 range include:

  • Suitable for floor to ceiling door installation.
  • Steel construction is resistant to warping, bowing, and moisture damage.
  • A jump proof twin roller track with dual axle ball bearing for smooth running.
  • Suitable for tiled wall applications.

Press-release option for easy door retrieval from the cavity pocket in flush jamb configuration.

Platinum 9000 - Made To Suit Specific Ceiling Heights Single
90MM Stud Thickness $
2400 x 1200 1615
2700 x 1200 1685
3000 x 1200 1745
3000 x 1600 P.O.A

Platinum 9000 - Additional fittings Single Double
90MM Stud Thickness $ $
Up to 870 + 11 + 22
Up to 1200 + 11 + 22

Platinum 9000 - Made To Suit Specific Ceiling Heights Single Double
90MM Stud Thickness $ $
2400 x 1200 2085 4155
2700 x 1200 2240 4460
3000 x 1200 2400 4790

Platinum 9000 - Made To Suit Specific Ceiling Heights Single
90MM Stud Thickness $
Up to 2400 x 1200 1685
Up to 2700 x 1200 1980
Up to 3000 x 1200 2265

ADDITIONAL FITTING SETS $
Guide Glide Kit 13
Jexis Press-Release Unit 81

Platinum 9000 Single Double
90MM Stud Thickness $ $
2400 x 1200 1615 3200
2700 x 1200 1650 3295
3000 x 1200 1685 3360

Platinum 9000 - Made To Suit Specific Ceiling Heights Single Double
90MM Stud Thickness $ $
2400 x 1200 1735 3450
2700 x 1200 1925 3825
3000 x 1200 2030 4045

ADDITIONAL FITTING SETS $
Fitting/roller sets Platinum 4000 + 58
Fitting/roller sets Platinum 6000 + 287
Fitting/roller sets Platinum 9000 + 287
Centre Stop + 10
Guide Glide Kit + 13
Jexis Press Release Unit + 81
Platinum 4000 Soft Close Kit - To Suit 16kg to 19kg Door + 95
Platinum 4000 Soft Close Kit - To Suit 20kg to 39kg Door + 95
Platinum 4000 Soft Close Kit - To Suit 40kg to 65kg Door + 95
Reinforcement for Grab Rail - 1 Side - Platinum 4000/6000 + 267
Reinforcement for Grab Rail - 2 Side - Platinum 4000/6000 + 375
Cavity Switch Unit P.O.A*

Slimline 3000 Cavity Unit

Corinthian Doors Slimline 3000 Cavity Units are timber and can accommodate a standard range of sliding doors for your home.

Features of the Slimline 3000 range include:

  • Suitable for door heights of 2040mm and 2340mm and up to 65kg door weight for single door applications and 45kg per door for double sliding applications.
  • Suitable for stud wall thickness of 70mm, 75mm, 90mm and 100mm.
  • A jump proof twin roller track and eight precision roller bearings for smooth running.

Please note:

  • South Australia: Slimline 3000 Cavity Units are not available in South Australia
  • Queensland and Western Australia: the range is only available to suit 2040mm high doors and 90mm stud wall thickness in Queensland and Western Australia

Slimline 3000 - Flush Pull Single Double
90MM Stud Thickness $ $
2040 x 520 359 770
2040 x 620 359 770
2040 x 720 359 770
2040 x 770 359 770
2040 x 820 359 770
2040 x 870 395 1020
2040 x 920 395 1020
2340 x 620 510 1035
2340 x 720 510 1035
2340 x 770 510 1035
2340 x 820 510 1035
2340 x 870 530 1170
2340 x 920 530 1170
100MM Stud Thickness $ $
2040 x 520 - -
2040 x 620 385 820
2040 x 720 385 820
2040 x 770 385 820
2040 x 820 385 820
2040 x 870 416 1020
2040 x 920 416 1020
2340 x 620 545 1035
2340 x 720 545 1035
2340 x 770 545 1035
2340 x 820 545 1035
2340 x 870 565 1225
2340 x 920 565 1225

ADDITIONAL FITTING SETS $
Fitting/roller sets + 60
Centre Stop -
Guide Glide Kit + 11
Jexis Press-Release Unit + 81
Cavity Switch Unit P.O.A*

Slimline 3000 - Flush Jamb Single Double
90MM Stud Thickness $ $
2040 x 620 339 675
2040 x 720 339 675
2040 x 770 339 675
2040 x 820 339 675
2040 x 870 385 780
2040 x 920 385 780
2340 x 620 482 970
2340 x 720 482 970
2340 x 770 482 970
2340 x 820 482 970
2340 x 870 492 1000
2340 x 920 492 1000
100MM Stud Thickness $ $
2040 x 620 339 675
2040 x 720 339 675
2040 x 770 339 675
2040 x 820 339 675
2040 x 870 385 780
2040 x 920 385 780
2340 x 620 482 970
2340 x 720 482 970
2340 x 770 482 970
2340 x 820 482 970
2340 x 870 492 1000
2340 x 920 492 1000
Cavity to suit 13mm plaster $ $
+ 73 + 145

ADDITIONAL FITTING SETS $
Fitting/roller sets + 39
Centre Stop -
Guide Glide Kit + 11
Jexis Press-Release Unit + 81
Cavity Switch Unit P.O.A*

Slimline 3000 - Flush Jamb Single
90MM Stud Thickness $
2040 x 620 359
2040 x 720 359
2040 x 770 359
2040 x 820 359
2040 x 870 436
2040 x 920 436

ADDITIONAL FITTING SETS $
Fitting/roller sets 54
Centre Stop -
Guide Glide Kit 13
Jexis Press-Release Unit 81
Cavity Switch Unit P.O.A*

Slimline 3000 - Flush Pull Single Double
90MM Stud Thickness $ $
2040 x 620 395 800
2040 x 720 395 800
2040 x 770 395 800
2040 x 820 395 800

Slimline 3000 - Flush Jamb Single Double
90MM Stud Thickness $ $
2040 x 620 395 800
2040 x 720 395 800
2040 x 770 395 800
2040 x 820 395 800

ADDITIONAL FITTING SETS $
Fitting/roller sets + 58
Centre Stop + 10
Guide Glide Kit + 13
Jexis Press-Release Unit + 81
Cavity Switch Unit P.O.A*

Cavity systems & accessories

Get a more detailed look at our cavity units

  • Platinum steel cavity unit
  • Platinum steel cavity unit
  • Slimline cavity unit
  • Slimline cavity unit
  • Slimline cavity unit
  • Slimline cavity unit