Concrete Construction: Methods and Costs

by Halbert Powers Gillette; Charles Shattuck Hill

Per cent of steel.	Lbs. steel Per cu. ft.	Lbs. steel Per cu. yd.
0.20	1.00	27.0
0.25	1.25	33.8
0.30	1.50	40.5
0.35	1.75	47.3
0.40	2.00	54.0
0.45	2.25	60.8
0.50	2.50	67.5
0.55	2.75	74.3
0.60	3.00	81.0
0.65	3.25	87.5
0.70	3.50	94.5
0.75	3.75	101.3
0.80	4.00	108.0
0.85	4.25	114.8
0.90	4.50	121.5
0.95	4.75	128.3
1.00	5.00	135.0

Table XXXIV—Weights of Round and Square Bars of Dimensions Commonly Used for Reinforcing Concrete.

Thickness or diameter in inches	Weight of square bars. Lbs. per ft.	Weight of round rods. Lbs. per ft.
1/16	0.013	0.010
⅛	0.053	0.042
3/16	0.119	0.094
¼	0.212	0.167
5/16	0.333	0.261
⅜	0.478	0.376
7/16	0.651	0.511
½	0.850	0.668
9/16	1.076	0.845
⅝	1.328	1.043
11/16	1.607	1.262
¾	1.913	1.502
⅞	2.608	2.044
1	3.400	2.670
1⅛	4.303	3.380
1¼	5.312	4.172
1½	7.650	6.008
1¾	10.404	4.178
2	13.600	10.68

Table XXXV—Dimensions and Weight of Expanded Metal.

	Mesh, inches.	Sectional area sq. ins. per ft. width.	Weight, lbs. per sq. ft.
Standard	½	0.209	0.74
Standard	¾	0.225	0.80
Standard	1½	0.207	0.70
Standard	2	0.166	0.56
Standard	3	0.083	0.28
Light	3	0.148	0.50
Standard	3	0.178	0.60
Heavy	3	0.267	0.90
Extra heavy	3	0.356	1.20
Standard	3	0.400	1.38
Standard	3	0.600	2.07
Old style	4	0.093	0.42
Standard	6	0.245	0.84
Heavy	6	0.368	1.26

Table XXXVI—Dimensions and Weight of Kahn Rib Metal.

Size No.	Section area per ft. width sq. ins.	Weight per sq. ft. lbs.
2	0.54	2.13
3	0.36	1.43
4	0.27	1.08
5	0.22	0.87
6	0.18	0.72
7	0.15	0.62
8	0.14	0.55

Table XXXVII—Weights of Deformed Bars of Dimensions Commonly Used for Reinforced Concrete.

Size ins.	Weight, lbs. per ft.	Area sq. ins.	Size ins.	Weight, lbs. per ft.	Area sq. ins.
Ransome Twisted Bar.			New Style Corrugated Bar.
¼	0.212	0.063	¼	0.24	0.06
½	0.85	0.25	½	0.85	0.25
⅝	1.32	0.319	⅝	1.33	0.39
¾	1.91	0.563	¾	1.91	0.56
⅞	2.6	0.765	⅞	2.60	0.77
1	3.4	1.000	1	3.40	1.00
1¼	5.3	1.563	1¼	5.30	1.56
Diamond Bar.			Universal Corrugated Bar.
½	0.85	0.25	¼×1	0.73	0.19
⅝	1.33	0.39	5/16×1¼	1.18	0.32
¾	1.91	0.56	⅜×1⅜	1.35	0.41
⅞	2.60	0.76	⅜×1¾	1.97	0.54
1	3.40	1.00	⅜×2	2.27	0.65
1¼	5.31	1.56	⅜×2½	2.85	0.80
—No. 1 Mill—		Thatcher Bulb Bar.		—No. 2 Mill.—
¼	0.16	0.047	...	...	...
½	0.61	0.18	½	0.58	0.17
⅝	0.95	0.28	⅝	0.92	0.27
¾	1.39	0.41	¾	1.34	0.39
⅞	1.87	0.55	⅞	1.79	0.53
1	2.42	0.71	1	2.32	0.68
1¼	3.74	1.10	1¼	3.55	1.04
1½	5.30	1.56	1½	5.20	1.53
1¾	7.07	2.08	....	....	....
2	9.02	2.65	....	....	....
Monolith Bar.			Twisted Lug Bar.
0.4	0.55	0.25	¼	0.222	0.625
½	0.85	0.32	½	0.87	0.250
...	....	....	⅝	1.35	0.3906
...	....	....	¾	1.94	0.5625
0.8	2.18	0.64	⅞	2.64	0.7656
1	3.37	1.00	1	3.45	1.00
...	....	....	1¼	5.37	1.5625
1½	7.75	2.25	1½	7.70	2.25
Cup Bar
⅜	0.48	....
½	0.86	....
⅝	1.35	....
¾	1.95	....
⅞	2.65	....
1	3.46	....
1 ⅛	4.38	....
1¼	4.51	....