APPLICATION
Apex Purlins and Girts are roll-formed from Hi-Tensile zinc-coated steel. They are primarily used to provide lightweight, economical, efficient roofing and cladding support systems for framed structures. Apex Purlins and Girts are available in a range of different sizes and configurations.

C-sections have equal falnges and may be used in single spans and unlapped continuous spans in multi-bay buildings. Their freestanding stable shape allows easy handling and storage and is easily adapted for use in small and medium sized buildings as structural framework.

Z-sections feature one broad and one narrow flange allowing the two sections to fit together snugly, making them suitable for lapping. z-sections of the same depth and different thickness' can be laped in any combination. Purlins and Girts that are lapped form a structuraly continuous line along the length of the building, a factor that contributes significantly to the reduction in building costs.

Downturn lip purlins are ideal in applications where environmental conditions or a build up of substances like dust or grain are a consideration.

Fascia purlins angled to suit the roof slope and an optional downturn lip for wall sheet attachment are available in long length one-piece sections.
MATERIALS
Apex Purlins and Girts are roll-formed from a zinc-coated, high strength, steel strip complying with AS1397.
Minimum yield stress: 450Mpa. Standard base steel thickness: 1.0, 1.2, 1.5, 1.9, and 2.4.
Zinc coating of Z350 (350 g/m2 minimum coating mass) is the standard coating class provided. Other coatings, grades and materials may be available, subject to inquiry.
 

DIMENSIONS - C Sections

PURLIN
SECTION

W
mm

F
mm

L
mm
THICKNESS BMT
mm

SECTION MASS
kg/m

C10010

102

51

12.5
1.0

1.78

C10012

102

51

13.0
1.2

2.10

C10015
102
51
14.0
1.5
2.62
C10019
102
51
15.0
1.9
3.29
C15010
152
64
14.5
1.0
2.37
C15012
152
64
15.0
1.2
2.89
C15015
152
64
16.0
1.5
3.59
C15019
152
64
17.0
1.9
4.51
C15024
152
64
18.5
2.4
5.70
C20015
203
76
16.0
1.5
4.49
C20019
203
76
19.5
1.9
5.74
C20024
203
76
21.0
2.4
7.24
C25019
254
76
19.0
1.9
6.50
C25024
254
76
20.5
2.4
8.16
C30024
300
96
28.0
2.4
10.09
 

DIMENSIONS - C Sections

PURLIN
SECTION

W
mm

F1
mm

F2
mm
L
mm
THICKNESS BMT
mm

SECTION MASS
kg/m

Z10010

102

53

49
12.5
1.0

1.78

Z10012

102

53

49
13.0
1.2

2.10

Z10015
102
53
49
14.0
1.5
2.62
Z10019
102
53
49
15.0
1.9
3.29
Z15010
152
65
61
14.5
1.0
2.37
Z15012
152
65
61
15.0
1.2
2.89
Z15015
152
65
61
16.0
1.5
3.59
Z15019
152
65
61
17.0
1.9
4.51
Z15024
152
65
61
18.5
2.4
5.70
Z20015
203
79
74
16.0
1.5
4.49
Z20019
203
79
74
19.5
1.9
5.74
Z20024
203
79
74
21.0
2.4
7.24
Z25019
254
79
74
19.0
1.9
6.50
Z25024
254
79
74
20.5
2.4
8.16
Z30024
300
100
93
28.0
2.4
10.09

Length tolerance for all sections is +0mm / -10mm Apex offers the added flexibility of downturn lips and adjustable top flanges for all sizes. For special or large projects, APex is able to customise sections outside the standard range to suit your individual requirements.
 
 

HOLES
Apex Purlins and Girts are available custom punched to your reequirements complying with the Australian institute of steel construction gauge lines as tabled below.

Nominal Section

SIZE mm

G (mm)

D H

0.42

4.08

800

0.48

4.63

800

 
 
 
Apex standard elongated punched hole. Holes equally spaced above and below centre line. For special projects the size of the hole, the number of holes and the gauge lines may be modified by negotiation.
 
BRIDGING
Apex Steel offer the Easy Lock® strut system which is easy to install and has a comprehensive range of components that are adaptable to all practical applications. They are supplied pre-assembled ready to install. For the 300 series purlins a heavy duty bolted system is available.
   
 
 
 
PURLIN & GIRT ACCESSORIES
Apex Steel provides a full range of accessories which are readily available for your convenience.
Purlin Bolts
M12 Size
PB1230 standard
purlin bolt (grade 4.6):
M12 x 30mm with nut
M16 Size
PB1645 standard purlin bolt
(grade 4.6):
M16 x 45mm with nut
Fascia Bolts
PB1230 fascia bolt (grade 4.6):
M16 x 45mm with nut
 
General Purpose Bracket
6 holes: 18mm diameter

Cat No.

A
B
C
D
E
F
GPB100

13

53
66
30
84

115

GPB150

22.5

82.5
105
30
97

125

GPB200
22
132
154
36
109
136
GPB250
20
180
200
36
109
136
 
Raking Girt Bracket
Angle Connector
Clamp Plates
Using Purlin and Girt Accessories
General Purpose Bracket:
The general purpose bracket is ideal for making joints of approximately 90° and is usually used for joining sections of the same web depth. Typical applications include light loaded heads to openings, trimmers, fascias at gable ends, car ports (see Figure A).

Cat No.

A mm
AC100

90

AC150

140

AC200
190
AC250
240

Cat No.

A mm
CP100

90

CP150

140

CP200
190
CP250
240
 
TYPICAL ASSEMBLIES
The Angle Connector can be used in a variety of ways. The holes allow connection between sections of the same size or one size smaller. Figure (B) shows a simple mitred 90 joint. Figure (C) shows the angle connector and clamp plate used as an attachment for trimmers or non-load-bearing heads to openings.