Parallel Flange Channels - Back to Back (PFC) - Section Properties Table

Dimensions and section properties for all 16 Parallel Flange Channels - Back to Back (PFC) to BS 4-1 (SCI P363 Blue Book): combined section properties for back-to-back PFC channels. 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 PFC Back to Back tool - EC3 capacity checks →📖 Design theory 📐 Worked example

Designation	mass kg/m	s mm	I_y cm⁴	I_z cm⁴	i_y cm	i_z cm	W_el,y cm³	W_el,z cm³	W_pl,y cm³	W_pl,z cm³	A cm²
2×PFC 430×100×64 Back to Back	129	270	43800	30100	16.3	4.23	2040	1580	2440	1870	164
2×PFC 380×100×54 Back to Back	108	235	30000	14800	14.8	4.42	1580	870	1880	1440	137
2×PFC 300×100×45 Back to Back	91.1	185	16500	11000	11.9	4.37	1100	720	1280	1040	116
2×PFC 300×90×41 Back to Back	82.8	145	14400	9620	11.7	3.8	962	808	1140	962	105
2×PFC 260×90×35 Back to Back	69.7	145	9460	7240	10.3	4.22	727	512	849	660	88.8
2×PFC 260×75×28 Back to Back	55.2	155	7240	3640	10.1	3.4	557	310	656	440	70.3
2×PFC 230×90×32 Back to Back	64.3	120	7040	6520	9.27	4.38	612	462	720	592	81.9
2×PFC 230×75×26 Back to Back	51.3	135	5500	3200	9.18	3.29	478	258	557	367	65.4
2×PFC 200×90×30 Back to Back	59.4	90	5050	5050	8.16	4.55	505	355	663	453	75.7
2×PFC 200×75×23 Back to Back	46.9	90	3930	3130	8.11	3.74	393	234	464	332	59.7
2×PFC 180×90×26 Back to Back	52.1	88	3640	4010	7.4	4.76	404	319	480	406	66.4
2×PFC 180×75×20 Back to Back	40.7	90	2740	2470	7.27	3.68	304	185	352	264	51.8
2×PFC 150×90×24 Back to Back	47.7	45	2320	3060	6.18	4.69	310	226	370	290	60.8
2×PFC 150×75×18 Back to Back	35.7	65	1720	1860	6.15	3.82	230	148	264	196	45.5
2×PFC 125×65×15 Back to Back	29.5	50	966	1010	5.07	3.35	155	97.9	178	131	37.6
2×PFC 100×50×10 Back to Back	20.4	40	415	415	4	2.82	83.1	62	97.7	82.2	26

16 sections · source: BS EN 1993-1-1:2005 / BS 4-1:2005

Related section types

Parallel Flange Channels (PFC)

16 sections · BS EN 1993-1-1:2005 / BS 4-1:2005

Two PFC - Laced

16 sections · BS EN 1993-1-1:2005 / BS 4-1:2005

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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