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B/bar	B/bar Type	Serrated Factor "Z"	Branded Mass /m²	L O A D	Span in mm	Heavy	Medium	Light												Max. Recomm. Span
B/bar	B/bar Type	Serrated Factor "Z"	Branded Mass /m²	L O A D	500	750	900	1000	1250	1500	1750	1800	2000	2100	2250	2400	2500	2750	Class	Max. Recomm. Span
25X3	1	0.84	24	U	4205	1867	1080	787	403	233									Light	1300
				d	1.6	3.75	4.50	5.00	6.25	7.50									Medium	1100
				C	1051	701	584	492	315	219									Heavy	1000
				d	1.33	3.00	4.33	5.00	6.25	7.50
25X4.5	2	0.84	32	U	6307	2800	1620	1181	605	350	220								Light	1500
				d	1.67	3.75	4.50	5.00	6.25	7.50	8.75								Medium	1300
				C	1577	1051	876	738	472	328	241								Heavy	1100
				d	1.33	3.00	4.33	5.00	6.25	7.50	8.75
30X3	4	0.87	28	U	6055	2691	1867	1361	697	403	254	233							Light	1550
				d	1.39	3.13	4.50	5.00	6.25	7.50	8.75	9.00							Medium	1300
				C	1514	1009	841	757	544	378	278	262							Heavy	1100
				d	1.11	2.50	3.60	4.45	6.25	7.50	8.75	9.00
30X4.5	5	0.87	37	U	9083	4037	2800	2041	1045	605	381	350	255						Light	1800
				d	1.39	3.13	4.50	5.00	6.25	7.50	8.75	9.00	10.00						Medium	1550
				C	2271	1514	1261	1135	816	567	417	394	319						Heavy	1300
				d	1.11	2.50	3.60	4.45	6.25	7.50	8.75	9.00	10.00
40X3	7	0.9	34	U	10765	4784	3322	2691	1651	956	602	553	403	332	253				Light	2100
				d	1.04	2.35	3.38	4.17	6.25	7.50	8.75	9.00	10.00	10.00	10.00				Medium	1800
				C	2691	1794	1495	1346	1076	896	658	622	504	435	354				Heavy	1550
				d	0.83	1.88	2.70	3.34	5.21	7.50	8.75	9.00	10.00	10.00	10.00
40X4.5	8	0.9	47	U	16147	7176	4984	4037	2477	1434	903	830	605	498	378	292	248		Light	2250
				d	1.04	2.35	3.38	4.17	6.25	7.50	8.75	9.00	10.00	10.00	10.00	10.00	10.00		Medium	2100
				C	4037	2691	2243	2018	1615	1344	987	933	756	653	531	437	387		Heavy	1800
				d	0.83	1.88	2.70	3.34	5.21	7.50	8.75	9.00	10.00	10.00	10.00	10.00	10.00
50X5	11	0.92	61	U	28033	12459	8652	7008	4485	3111	1959	1800	1312	1080	819	633	538	367	Light	2750
				d	0.83	1.88	2.70	3.34	5.21	7.50	8.75	9.00	10.00	10.00	10.00	10.00	10.00	10.00	Medium	2500
				C	7008	4672	3893	3504	2803	2336	2002	1947	1641	1417	1152	949	840	631	Heavy	2250
				d	0.67	1.50	2.16	2.67	4.17	6.01	8.18	8.65	10.00	10.00	10.00	10.00	10.00	10.00

U = Kg/m2 UDL C = Kg/m2 width line load d=Deflection at centre
Note: Galvanizing will increase masses/m2 by 9% on average