What is the maximum C purlin depth?

Standard sizes go to C300; the auto-size line rolls any depth from 100 to 400 mm and flange widths from 50 to 130 mm.

Can holes be punched to our layout?

Yes – holes are punched in-line to the connection layout from the shop drawings.

WS C purlins and girts

Light, straight and pre-punched

C sections are roll-formed from galvanized coil and used as purlins, girts, eave struts and light framing. They are cut to length and punched to the connection layout in-line, so members arrive ready to bolt. Simple spans and short projects use C sections; continuous lapped systems usually use Z purlins.

C and Z purlin section dimensions — Section parameters H, W (E), L, T and hole centres K.

Standard sizes (mm)

WS C purlins – standard sizes
No.	Type	H	W	L	T	K (holes)
1	C80	80	40	16–20	1.2–3.0	–
2	C100	100	50	16–20	1.2–3.0	40–50
3	C125	125	50	16–20	1.2–3.0	40–60
4	C150	150	50	16–20	1.2–3.0	40–80
5	C180	180	50	16–20	1.5–3.0	40–100
6	C200	180	50	16–20	1.5–3.0	40–120
7	C150	150	65	16–20	1.5–3.0	40–80
8	C180	180	65	16–20	1.5–3.0	40–100
9	C200	200	65	16–20	1.5–3.0	40–120
10	C250	250	65	16–20	1.5–3.0	40–160
11	C300	300	65	16–20	1.5–3.0	40–210
12	C200	200	75	16–20	1.5–3.0	40–120
13	C250	250	75	16–20	1.5–3.0	40–160
14	C300	300	75	16–20	1.5–3.0	40–210

Auto-size C line: H 100–400 mm, W 50–130 mm, L 15–25 mm, T 1.2–4.0 mm, K 40–320 mm. Standard holes: oval 14 × 22 mm.

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