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SHORING |
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HORIZONTAL SHORES |
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7/12 Loading Chart
Slab Thickness |
Weight Conc. lbs/psf |
Total Load lbs/psf |
Permissible Span for Given Spacing |
8" |
1'0" |
1'4" |
1'7-3/16" |
2'0" |
2'4" |
2'8" |
3'0" |
3'4" |
3'8" |
4'0" |
5'0" |
4" |
50 |
80 |
12'4" |
12'4" |
12'4" |
12'4" |
12'4" |
12'0" |
11'2" |
10'7" |
10'0" |
9'6" |
9'2" |
8'1" |
4 1/2" |
56 |
86 |
12'4" |
12'4" |
12'4" |
12'4" |
12'4" |
11'6" |
10'9" |
10'2" |
9'8" |
9'2" |
8'10" |
7'10" |
5" |
62 |
92 |
12'4" |
12'4" |
12'4" |
12'4" |
12'1" |
11'2" |
10'5" |
9'10" |
9'4" |
8'10" |
8'6" |
7'7" |
5 1/2" |
69 |
99 |
12'4" |
12'4" |
12'4" |
12'4" |
11'7" |
10'9" |
10'1" |
9'6" |
9'0" |
8'7" |
8'2" |
7'4" |
6" |
75 |
105 |
12'4" |
12'4" |
12'4" |
12'4" |
11'3" |
10'5" |
9'9" |
9'2" |
8'9" |
8'4" |
8'0" |
|
6 1/2" |
81 |
111 |
12'4" |
12'4" |
12'4" |
12'2" |
11'2" |
10'1" |
9'6" |
8'11" |
8'5" |
8'1" |
7'9" |
|
7" |
87 |
117 |
12'4" |
12'4" |
12'4" |
11'10" |
10'7" |
9'11" |
9'3" |
8'8" |
8'3" |
7'11" |
7'6" |
|
7 1/2" |
94 |
124 |
12'4" |
12'4" |
12'4" |
11'6" |
10'4" |
9'8" |
9'0" |
8'6" |
8'0" |
7'8" |
7'4" |
|
8" |
100 |
130 |
12'4" |
12'4" |
12'4" |
11'3" |
10'1" |
9'5" |
8'9" |
8'3" |
7'10" |
7'6" |
7'2" |
|
8 1/2" |
106 |
136 |
12'4" |
12'4" |
12'1" |
11'0" |
9'11" |
9'2" |
8'7" |
8'1" |
7'8" |
7'4" |
|
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9" |
112 |
142 |
12'4" |
12'4" |
11'10" |
10'9" |
9'8" |
9'0" |
8'4" |
7'11" |
7'6" |
7'2" |
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9 1/2" |
119 |
149 |
12'4" |
12'4" |
11'7" |
10'6" |
9'6" |
8'9" |
8'2" |
7'9" |
7'4" |
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10" |
125 |
155 |
12'4" |
12'4" |
11'4" |
10'4" |
9'3" |
8'7" |
8'0" |
7'7" |
7'2" |
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10 1/2" |
131 |
161 |
12'4" |
12'4" |
11'1" |
10'2" |
9'1" |
8'5" |
7'11" |
7'5" |
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11" |
137 |
167 |
12'4" |
12'4" |
10'11" |
9'11" |
8'11" |
8'3" |
7'9" |
7'4" |
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11 1/2" |
143 |
173 |
12'4" |
12'4" |
10'9" |
9'9" |
8'9" |
8'1" |
7'7" |
7'2" |
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12" |
150 |
180 |
12'4" |
12'1" |
10'6" |
9'7" |
8'7" |
8'0" |
7'6" |
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13" |
162 |
192 |
12'4" |
11'9" |
10'2" |
9'3" |
8'4" |
7'8" |
7'2" |
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14" |
175 |
205 |
12'4" |
11'4" |
9'10" |
9'0" |
8'1" |
7'6" |
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15" |
187 |
217 |
12'4" |
11'2" |
9'8" |
8'10" |
7'10" |
7'4" |
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20" |
250 |
280 |
11'11" |
9'9" |
8'5" |
7'8" |
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24" |
300 |
330 |
10'11" |
8'11" |
7'9" |
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Example:
- 6" slab thickness and 8' clear span - allows a spacing of 4'0" from center to center.
- Clear spans shall be from inside to inside of supports.
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