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6187 Miami Lakes Dr., Miami Lakes, FL 33014 Tel. (305) 558-3515 Fax. (305) 558-8557

LOAD SPAN TABLES

Joist Section Properties
A ln^²	I ln^⁴	Sb ln^³	St ln^³	Yb ln	Yt ln	Wt. p/f
45.5	242.5			4.06	3.94	45.5

8" JOIST WITH 3" COMPOSITE SLAB (P.S.F.)
Joist Spacing	DESIGN SPAN (Feet)
Joist Spacing	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	System Weight (R.S.F.)
2'-6"			290	268	246	224	202	180	166	153	140	128	116	106	96	86	75	65	55
3'-6"	245	228	210	193	176	159	142	125	117	109	101	93	85	78	71	64	57	50	50
4'-6"	180	166	158	144	132	121	110	100	93	86	78	70	62	57	52	48			47
5'-6"	145	135	125	115	105	95	85	75	70	65	60	55	50						45
6'-6"	118	109	100	92	84	76	68	60	55	50	45								44

Joist Section Properties
A ln^²	I ln^⁴	Sb ln^³	St ln^³	Yb ln	Yt ln	Wt. p/f
66.8	799.8			6.14	5.87	66.8

12" JOIST WITH 3" COMPOSITE SLAB (P.S.F.)
Joist Spacing	DESIGN SPAN (Feet)
Joist Spacing	20	22	24	26	28	30	31	32	33	34	35	36	37	38	39	40	42	44	System Weight (R.S.F.)
2'-6"					268	220	204	188	173	160	146	136	126	116	107	98	84	70	64
3'-6"				234	202	170	158	146	135	126	118	110	103	96	89	82	70	58	56
4'-6"	235	213	192	173	156	139	129	120	111	102	94	88	82	76	70	64	52		51
5'-6"	182	164	148	132	116	100	92	85	78	71	64	60	56	53	50	46			49
6'-6"	150	136	122	107	91	75	70	65	60	55	50	47	45						47

Joist Section Properties
A ln^²	I ln^⁴	Sb ln^³	St ln^³	Yb ln	Yt ln	Wt. p/f
91.0	1936.3			8.23	7.77	91.0

16" JOIST WITH 3" COMPOSITE SLAB (P.S.F.)
Joist Spacing	DESIGN SPAN (Feet)
Joist Spacing	26	28	30	32	34	36	38	40	42	44	46	48	50	51	52	53	54	55	System Weight (R.S.F.)
3'-61/4"			282	253	222	196	172	150	132	116	100	88	76	71	66	61	56	52	63
4'-61/4"			212	190	170	150	132	114	102	90	80	70	60	58	56	54	52	50	57
5'-61/4"	200	184	168	150	132	115	101	87	77	67	59	54	50						54
6'-61/4"	166	152	138	122	107	93	80	68	60	52									52

Joist Section Properties
A ln^²	I ln^⁴	Sb ln^³	St ln^³	Yb ln	Yt ln	Wt. p/f
174.0	8322.2			12.42	11.58	174.0

24" JOIST WITH 4" COMPOSITE SLAB (P.S.F.)
Joist Spacing	DESIGN SPAN (Feet)
Joist Spacing	40	42	44	46	48	50	52	54	56	58	60	62	64	66	68	70	72	74	System Weight (R.S.F.)
4'-8"	310	294	278	262	237	212	186	168	150	132	118	105	92	82	72	62	55	50	84
5'-8"	235	222	209	195	182	170	158	145	132	122	110	98	86	77	68	60	52		78
6'-8"	192	179	168	158	148	138	128	116	105	94	86	78	70	64	58	52			73
7'-8"	166	156	146	136	124	113	102	94	86	78	70	63	56	50					70
8'-8"	138	130	122	114	106	98	90	81	73	65	57	50							68

Joist Section Properties
A ln^²	I ln^⁴	Sb ln^³	St ln^³	Yb ln	Yt ln	Wt. p/f
207.0	13459.0			14.55	13.45	206.0

28" JOIST WITH 4-3/4" COMPOSITE SLAB (P.S.F.)
Joist Spacing	DESIGN SPAN (Feet)
Joist Spacing	54	56	58	60	62	64	66	68	70	72	74	System Weight (R.S.F.)
4'-8"	230	218	198	178	162	148	137	119	109	97	88	92
5'-8"	215	180	162	146	131	117	105	94	86	76	68	86
6'-8"	165	148	128	119	104	95	84	73	67	60	53	81
7'-8"	135	120	108	93	86	76	68	59	52			78
8'-8"	115	103	90	78	70	62	54					76

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