UPN channel weight chart

18 sizes · 5.58 to 71.82 kg/m

Dimensions and weight per metre of European UPN taper flange channels, UPN 50 to UPN 400. Sections are listed from lightest to heaviest; European (EN).

Download PDF Weight of 6 m / 12 m lengths FAQ

Section	h (mm)	b (mm)	tw (mm)	tf (mm)	kg/m	lb/ft	A (cm²)	Ix (cm⁴)	Iy (cm⁴)	Zx (cm³)
UPN 50	50	38	5	7	5.58	3.75	7.11	—	—	—
UPN 65	65	42	5.5	7.5	7.11	4.78	9.06	—	—	—
UPN 80	80	45	6	8	8.65	5.81	11.02	—	—	—
UPN 100	100	50	6	8.5	10.57	7.10	13.47	—	—	—
UPN 120	120	55	7	9	13.32	8.95	16.97	—	—	—
UPN 140	140	60	7	10	15.99	10.74	20.37	—	—	—
UPN 160	160	65	7.5	10.5	18.87	12.68	24.03	—	—	—
UPN 180	180	70	8	11	21.94	14.74	27.95	—	—	—
UPN 200	200	75	8.5	11.5	25.30	17.00	32.23	—	—	—
UPN 220	220	80	9	12.5	29.41	19.76	37.47	—	—	—
UPN 240	240	85	9.5	13	33.19	22.30	42.28	—	—	—
UPN 260	260	90	10	14	37.90	25.47	48.28	—	—	—
UPN 280	280	95	10	15	41.91	28.16	53.39	—	—	—
UPN 300	300	100	10	16	46.13	31.00	58.76	—	—	—
UPN 320	320	100	14	17.5	59.52	40.00	75.83	—	—	—
UPN 350	350	100	14	16	60.64	40.75	77.25	—	—	—
UPN 380	380	102	13.5	16	63.08	42.39	80.35	—	—	—
UPN 400	400	110	14	18	71.82	48.26	91.49	—	—	—

Dimensions from the structuralcodes library (Apache-2.0); masses and properties calculated. Nominal values for estimating; verify with the producer. steelweight-calculator.com

Weight across the series

Weight per metre of every size, lightest to heaviest. UPN 220, the size looked up most often, is highlighted.

How to read this chart

UPN 220, drawn to scale (mm)

h: overall depth in mm
b: flange width in mm
tw: web thickness in mm
tf: flange thickness in mm (mean value for taper flanges)
kg/m, lb/ft: nominal weight per unit length
A: cross-sectional area in cm²; weight = 0.785 × A kg/m
Ix: second moment of area about the strong axis in cm⁴, which governs bending stiffness and deflection
Iy: second moment of area about the weak axis in cm⁴, which matters for buckling and columns
Zx: elastic section modulus in cm³; bending moment capacity is roughly Zx × allowable stress

Channels are used as purlins, girts, stair stringers, trimmers, frames and bracing, and back to back as built-up columns.

Weight of standard lengths

Sections are usually supplied in 6 m and 12 m lengths. The weight of one piece is the weight per metre times the length; the last column converts a tonnage order into a number of 12 m bars.

Section	6 m length (kg)	12 m length (kg)	12 m lengths per tonne
UPN 50	33.5	67.0	14.9
UPN 65	42.7	85.3	11.7
UPN 80	51.9	103.8	9.6
UPN 100	63.4	126.8	7.9
UPN 120	79.9	159.8	6.3
UPN 140	95.9	191.9	5.2
UPN 160	113.2	226.4	4.4
UPN 180	131.6	263.3	3.8
UPN 200	151.8	303.6	3.3
UPN 220	176.5	352.9	2.8
UPN 240	199.1	398.3	2.5
UPN 260	227.4	454.8	2.2
UPN 280	251.5	502.9	2.0
UPN 300	276.8	553.6	1.8
UPN 320	357.1	714.2	1.4
UPN 350	363.8	727.7	1.4
UPN 380	378.5	757.0	1.3
UPN 400	430.9	861.8	1.2

How the weight is calculated

The weight of a steel section is its cross-sectional area times the density of steel, 7850 kg/m³. With the area in cm² this simplifies to:

weight (kg/m) = 0.785 × A (cm²)

Example: UPN 220 has an area of 37.47 cm², so 0.785 × 37.47 = 29.41 kg/m. The standard gives 29.41 kg/m, and a 12 m length weighs about 352.9 kg.

Rolled sections are made to a nominal mass, and the actual mass can differ by a few percent within the tolerances of EN 10034 (I and H sections) or EN 10279 (channels). For purchasing, invoicing by weight or checking deliveries, use the producer's stated mass.

More on the method: steel weight formula · density of steel · steel weight calculator

Equivalent sections in other standards

The closest section in each other standard by depth and weight. These are starting points for substitution, not drop-in replacements: flange width, thickness and section properties differ, so check the design.

Section	kg/m	Indian Standard (IS 808)	American (AISC / ASTM A6)
UPN 80	8.65	ISMC 75 (7.1 kg/m)	C3x6 (8.9 kg/m)
UPN 100	10.57	ISMC 100 (9.6 kg/m)	C4x7.25 (10.8 kg/m)
UPN 120	13.32	ISMC 125 (13.1 kg/m)	C5x9 (13.0 kg/m)
UPN 140	15.99	ISMC 150 (16.8 kg/m)	C6x10.5 (15.6 kg/m)
UPN 160	18.87	ISMC 150 (heavy, 17.7 kg/m) (17.7 kg/m)	C6x13 (19.3 kg/m)
UPN 180	21.94	ISMC 175 (heavy, 21.4 kg/m) (21.4 kg/m)	C7x14.75 (22.0 kg/m)
UPN 200	25.30	ISMC 200 (heavy, 24.3 kg/m) (24.3 kg/m)	MC8x18.7 (27.8 kg/m)
UPN 220	29.41	ISMC 225 (heavy, 30.7 kg/m) (30.7 kg/m)	C9x20 (30.0 kg/m)
UPN 240	33.19	ISMC 250 (heavy, 34.2 kg/m) (34.2 kg/m)	MC10x22 (33.0 kg/m)
UPN 260	37.90	ISMC 250 (heavy, 38.1 kg/m) (38.1 kg/m)	C10x25 (37.0 kg/m)
UPN 280	41.91	ISMC 300 (heavy, 41.5 kg/m) (41.5 kg/m)	MC10x28.5 (42.4 kg/m)
UPN 300	46.13	ISMC 300 (heavy, 46.2 kg/m) (46.2 kg/m)	MC12x31 (46.0 kg/m)
UPN 320	59.52	ISMC 300 (heavy, 46.2 kg/m) (46.2 kg/m)	MC13x40 (60.0 kg/m)
UPN 350	60.64	ISMC 350 (42.7 kg/m)	MC13x40 (60.0 kg/m)
UPN 380	63.08	ISMC 400 (50.1 kg/m)	C15x40 (60.0 kg/m)
UPN 400	71.82	ISMC 400 (50.1 kg/m)	C15x50 (74.0 kg/m)

Full matching tables: steel section equivalents.

Frequently asked questions

What is the weight of UPN 220?

UPN 220 weighs 29.41 kg/m (19.76 lb/ft). A 6 m length is about 176.5 kg and a 12 m length about 352.9 kg.

What are the lightest and heaviest sizes in this chart?

The lightest is UPN 50 at 5.58 kg/m (3.75 lb/ft) and the heaviest is UPN 400 at 71.82 kg/m (48.26 lb/ft). The chart lists 18 sizes.

How is the weight of a UPN European channel calculated?

Weight per metre is the cross-sectional area times the density of steel, 7850 kg/m³. With the area in cm², that is mass = 0.785 × A kg/m. For UPN 220, A = 37.47 cm², so 0.785 × 37.47 = 29.41 kg/m. Multiply by the length in metres for the weight of a piece.

Is there a printable UPN channel weight chart?

Yes. The PDF version of this chart (steelweight-calculator.com/charts/upn-channel-weight-chart.pdf) has the same table on A4 pages and can be printed or saved for site use.