Australian Flats | Section Sizes

Shape	Area (mm²)	Depth (mm)	Width (mm)	Section Properties
Shape	Area (mm²)	Depth (mm)	Width (mm)	I_x (mm⁴)	I_y (mm⁴)	Plastic Mod Xp (mm³)	Plastic Mod Yp (mm³)
55x4.0 CF Dimensions	190	55	3.8	39600	229	2380	181
55x5.0 CF Dimensions	235	55	4.7	49000	433	2940	276
65x4.0 CF Dimensions	247	65	3.8	87000	297	4010	235
65x5.0 CF Dimensions	306	65	4.7	108000	562	4960	359
75x4.0 CF Dimensions	285	75	3.8	134000	343	5340	271
75x5.0 CF Dimensions	353	75	4.7	165000	649	6610	414
90x6.0 CF Dimensions	540	90	6	365000	1620	12200	810
100x4.0 CF Dimensions	380	100	3.8	317000	457	9500	361
100x5.0 CF Dimensions	470	100	4.7	392000	865	11800	552
100x6.0 CF Dimensions	600	100	6	500000	1800	15000	900
100x8.0 CF Dimensions	800	100	8	667000	4270	20000	1600
130x5.0 CF Dimensions	611	130	4.7	860000	1120	19900	718
150x5.0 CF Dimensions	705	150	4.7	1320000	1300	26400	828
150x6.0 CF Dimensions	900	150	6	1690000	2700	33800	1350
150x8.0 CF Dimensions	1200	150	8	2250000	6400	45000	2400
200x5.0 CF Dimensions	940	200	4.7	3130000	1730	47000	1100
200x6.0 CF Dimensions	1200	200	6	4000000	3600	60000	1800
200x8.0 CF Dimensions	1600	200	8	5330000	8530	80000	3200
250x5.0 CF Dimensions	1180	250	4.7	6120000	2160	73400	1380
250x8.0 CF Dimensions	2000	250	8	10400000	10700	125000	4000
300x5.0 CF Dimensions	1410	300	4.7	10600000	2600	106000	1660
300x8.0 CF Dimensions	2400	300	8	18000000	12800	180000	4800

The above table of Flats sizes offers a detailed beam sizes chart for engineers to easily scroll and find what they’re looking for. If you’re looking for a different section or shape try the search feature or one of the below resources: