Cold-Formed Z-Purlins (Z) - Section Properties Table

Dimensions and section properties for all 16 Cold-Formed Z-Purlins (Z) to Continental Steel (SCI P363 Blue Book): dimensions, mass and section properties for every Z-purlin. Use the table below for reference, or open the interactive tool to run EC3 capacity checks.

🔍 Open the full Steel Catalogue - properties, capacity & Find Section →Open the interactive Z-Purlin tool - EC3 capacity checks →📖 Design theory 📐 Worked example (soon)

Designation	mass kg/m	h mm	b mm	t mm	I_u cm⁴	I_v cm⁴	I_y cm⁴	I_z cm⁴	i_y cm	i_z cm	W_el,y cm³	W_el,z cm³	A cm²
Z10010	1.78	102	53	1	45.1	4.37	1.55	14.2	13.1	16.8	27.6	36.4	2.16
Z10012	2.1	102	53	1.2	53.6	5.16	1.84	14.2	15.5	19.8	27.5	43.2	2.58
Z10015	2.62	102	53	1.5	66.8	6.52	2.32	14.2	19.7	24.9	27.8	53.7	3.23
Z10019	3.29	102	53	1.9	84	8.29	2.94	14.2	25	31.4	28.1	67.3	4.09
Z15012	2.89	152	65	1.2	147	1.15	3.14	18.1	30.3	46.9	21.8	128	3.54
Z15015	3.59	152	65	1.5	184	1.45	3.96	18.1	38.3	58.8	22	160	4.43
Z15019	4.51	152	65	1.9	232	1.84	5.02	18.1	48.7	74.4	22.1	201	5.61
Z15024	5.7	152	66	2.4	292	2.38	6.38	18.3	63.2	95	22.5	253	7.12
Z20015	4.49	203	79	1.5	389	2.55	5.53	21.4	62.1	109	18.5	353	5.55
Z20019	5.74	203	79	1.9	502	3.42	7.45	21.9	84.3	145	19.1	452	7.13
Z20024	7.24	203	79	2.4	636	4.43	9.64	22.1	110	186	19.4	570	9.07
Z25019	6.5	254	79	1.9	808	3.81	7.82	21.7	83.3	181	14	762	8.08
Z25024	8.16	254	79	2.4	1020	4.93	10.2	21.9	108	233	14.3	964	10.3
Z30024	10.09	300	100	2.4	1830	1.01	16.8	28.3	232	457	16	1700	12.6
Z30030	12.76	300	100	3	2310	1.32	21.9	28.7	304	588	0	2130	16
Z35030	15.23	350	129	3	3920	2.49	32.8	36.1	593	1070	17.8	3580	19.1

16 sections · source: Continental Steel

Learn more

📘 How to read a steel section table (UB, UC, IPE, HE) →📘 Section modulus explained: elastic (Wel) vs plastic (Wpl) →

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