Product Overview
Horizontal Shore quickly adjusts from 3'-7" to 6' (HS-46), 6' to 10' (HS-610), 8' to 13' (HS-813), 9' to 15' (HS-915) to support formwork for concrete decks, bridges, box culverts and heavy loads, but light enough for easy handling.
Horizontal Shores allow users to set up and tear down quickly by reducing the total number of shores needed. Quickly open and close wedge lock with strike of a hammer.
Demonstration Video
Data Sheets
Spacing Chart for Ellis Horizontal Shores
Use the drawing and corresponding spacing charts below to determine the proper horizontal shore spacing for pouring concrete bridge decks.
- A - Safe Spacing for Horizontal Shores (Center to Center).
- B - Safe Spacing for 2x4 Joists (Center to Center) & continuous over 3 or more supports. * Based on used of No. 2 Grade Southern Pine or Douglas Fir-Larch (S4S Lumber) Fb 1625. ** 3/4" Plywood Decking is continuous over 3 or more supports. Face Grain Parallel to Spacing (Strong Direction).
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4-6 Horizontal Shore & Joist Spacing (Center To Center) |
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| Slab | Slab Weight |
Horizontal Shore Span |
Joist |
||||
| Thickness | Dead Load + | 4' | 5' | 6' |
Spacing |
||
| (inches) | Live Load (PSF) |
A |
B |
||||
| 4" or Less | 80 | 60" | 60" | 60" |
24" |
||
| 5" to 6" | 105 | 54" | 54" | 54" |
22" |
||
| 7" to 9" | 142.5 | 48" | 48" | 42" |
20" |
||
| 10" to 12" | 180 | 42" | 42" | 30" |
19" |
||
| 13" to 14" | 205 | 36" | 36" | 30" |
18" |
||
| 15" to 16" | 230 | 36" | 36" | 24" |
17" |
||
| 17" to 18" | 255 | 36" | 36" | 24" |
17" |
||
| 19" to 20" | 280 | 30" | 30" | 18" |
17" |
||
| 21" to 22" | 305 | 30" | 30" | 18" |
16" |
||
| 23" to 24" | 330 | 30" | 24" | 18" |
16" |
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6-10 Horizontal Shore & Joist Spacing (Center To Center) |
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| Slab | Slab Weight |
Horizontal Shore Span |
Joist |
|||||
| Thickness | Dead Load + | 6' | 7' | 8' | 9' | 10' |
Spacing |
|
| (inches) | Live Load (PSF) |
A |
B |
|||||
| 4" or Less | 80 | 60" | 60" | 60" | 54" | 36" |
24" |
|
| 5" to 6" | 105 | 54" | 54" | 48" | 36" | 24" |
22" |
|
| 7" to 9" | 142.5 | 48" | 48" | 36" | 24" | 18" |
20" |
|
| 10" to 12" | 180 | 42" | 42" | 24" | 24" | 12" |
19" |
|
| 13" to 14" | 205 | 36" | 36" | 24" | 18" | 12" |
18" |
|
| 15" to 16" | 230 | 36" | 36" | 18" | 18" | 12" |
17" |
|
| 17" to 18" | 255 | 36" | 30" | 18" | 12" | 12" |
17" |
|
| 19" to 20" | 280 | 30" | 24" | 18" | 12" | 8" |
17" |
|
| 21" to 22" | 305 | 30" | 24" | 12" | 12" | 8" |
16" |
|
| 23" to 24" | 330 | 30" | 24" | 12" | 12" | 8" |
16" |
|
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8-13 Horizontal Shore & Joist Spacing (Center To Center) |
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| Slab | Slab Weight |
Horizontal Shore Span |
Joist |
||||||
| Thickness | Dead Load + | 8' | 9' | 10' | 11' | 12' | 13' |
Spacing |
|
| (inches) | Live Load (PSF) |
A |
B |
||||||
| 4" or Less | 80 | 60" | 60" | 48" | 42" | 30" | 24" |
24" |
|
| 5" to 6" | 105 | 54" | 48" | 36" | 30" | 24" | 18" |
22" |
|
| 7" to 9" | 142.5 | 42" | 36" | 30" | 18" | 18" | 12" |
20" |
|
| 10" to 12" | 180 | 36" | 30" | 18" | 18" | 12" | 8" |
19" |
|
| 13" to 14" | 205 | 30" | 24" | 18" | 12" | 12" | 8" |
18" |
|
| 15" to 16" | 230 | 24" | 18" | 18" | 12" | 8" | 8" |
17" |
|
| 17" to 18" | 255 | 24" | 18" | 12" | 12" | 8" | 6" |
17" |
|
| 19" to 20" | 280 | 18" | 18" | 12" | 12" | 8" | 6" |
17" |
|
| 21" to 22" | 305 | 18" | 12" | 12" | 8" | 8" | 6" |
16" |
|
| 23" to 24" | 330 | 18 | 12" | 12" | 8" | 6" | - |
16" |
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