Standard Trench Box System
Standard Trench Box System
The Standard Trench Box range is designed for deeper trenches and poor ground conditions.
With three adjustable spindle types, the Standard Trench box system can achieve trench widths of 0.85 – 4.48m using a combination of extension pieces. Recommended maximum depth – 5.30m.
Site Equipment are specialist Trench Box systems suppliers and can offer initial advice to help you make the best decision for your project. Contact us today for more information!
Download Safe Use Instructions and detailed Information Sheet below.
| Box length L | Panel height H | Clearance Between struts LC | Pipe clearance Beneath struts hC |
|---|---|---|---|
| m | m | m | m |
| 2.50 | 2.60 Base 1.40 Top | 2.10 | 1.50 |
| 3.00 | 2.60 Base 1.40 Top | 2.60 | 1.50 |
| 3.50 | 2.60 Base 1.40 Top | 3.10 | 1.50 |
| 4.00 | 2.60 Base 1.40 Top | 3.60 | 1.50 |
| 4.50 | 2.60 Base 1.40 Top | 4.10 | 1.50 |
| Box length L | Panel height H | Thickness t PL | External Width (b) v Permissible Earth Pressure | ||||
|---|---|---|---|---|---|---|---|
| kN/m2 | |||||||
| < 3.0m | < 3.5m | < 4.0m | <4.5m | ||||
| m | m | mm | |||||
| 2.50 | 2.60 Base 1.40 Top | 107 | 57.0 | 51.7 | 42.7 | 33.6 | |
| 3.00 | 2.60 Base 1.40 Top | 47.5 | 43.0 | 35.6 | 28.0 | ||
| 3.50 | 2.60 Base 1.40 Top | 40.7 | 36.9 | 30.5 | 24.0 | ||
| 4.00 | 2.60 Base 1.40 Top | 35.6 | 32.2 | 26.7 | 21.0 | ||
| 4.50 | 2.60 Base 1.40 Top | 127 | 33.7 | 30.5 | 25.2 | 19.8 | |
| Box Length L | Panel Height H | Maximum Weight per complete box | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| m | m | kg | ||||||||
| Mini-0.0 | Midi-0.0 | Maxi-0.0 | Maxi-0.5 | Maxi-1.0 | Maxi-1.5 | Maxi-2.0 | Maxi-2.5 | Maxi-3.0 | ||
| 2.5 | 2.6 Base | 1680 | 1708 | 1741 | 1820 | 1899 | 1978 | 2058 | 2137 | 2216 |
| 1.4 Top | 990 | 1003 | 1020 | 1060 | 1100 | 1139 | 1179 | 1218 | 1258 | |
| 3.0 | 2.6 Base | 1935 | 1963 | 1996 | 2075 | 2154 | 2233 | 2313 | 2392 | 2471 |
| 1.4 Top | 1134 | 1148 | 1165 | 1205 | 1245 | 1284 | 1324 | 1363 | 1403 | |
| 3.5 | 2.6 Base | 2180 | 2208 | 2241 | 2320 | 2399 | 2478 | 2558 | 2637 | 2716 |
| 1.4 Top | 1280 | 1293 | 1310 | 1350 | 1390 | 1429 | 1469 | 1508 | 1548 | |
| 4.0 | 2.6 Base | 2420 | 2448 | 2481 | 2560 | 2639 | 2718 | 2798 | 2877 | 2956 |
| 1.4 Top | 1425 | 1438 | 1455 | 1495 | 1535 | 1574 | 1614 | 1653 | 1693 | |
| 4.5 | 2.6 Base | 2950 | 2978 | 3011 | 3090 | 3169 | 3248 | 3328 | 3407 | 3486 |
| 1.4 Top | 1810 | 1823 | 1840 | 1880 | 1920 | 1959 | 1999 | 2038 | 2058 | |
Spindle Chart
| Box Spindle Type | Trench Box / Hi-Clear Box | |
|---|---|---|
| Internal Width | External Width | |
| bC | b | |
| m | m | |
| Mini-0.0 | 0.65 – 0.75 | 0.85 – 0.95 |
| Mini-0.5 | 1.15 – 1.25 | 1.35 – 1.45 |
| Mini-1.0 | 1.65 – 1.75 | 1.85 – 1.95 |
| Mini-1.5 | 2.15 – 2.25 | 2.35 – 2.45 |
| Mini-2.0 | 2.65 – 2.75 | 2.85 – 2.95 |
| Mini-2.5 | 3.15 – 3.25 | 3.35 – 3.45 |
| Mini-3.0 | 3.65 – 3.75 | 3.85 – 3.95 |
| Midi-0.0 | 0.83 – 1.02 | 1.03 – 1.22 |
| Midi-0.5 | 1.33 – 1.52 | 1.53 – 1.72 |
| Midi-1.0 | 1.83 – 2.02 | 2.03 – 2.22 |
| Midi-1.5 | 2.33 – 2.52 | 2.53 – 2.72 |
| Midi-2.0 | 2.83 – 3.02 | 3.03 – 3.22 |
| Midi-2.5 | 3.33 – 3.52 | 3.53 – 3.72 |
| Midi-3.0 | 3.83 – 4.02 | 4.03 – 4.22 |
| Maxi-0.0 | 0.98 – 1.26 | 1.20 – 1.48 |
| Maxi-0.5 | 1.48 – 1.76 | 1.70 – 1.98 |
| Maxi-1.0 | 1.98 – 2.26 | 2.20 – 2.48 |
| Maxi-1.5 | 2.48 – 2.76 | 2.70 – 2.98 |
| Maxi-2.0 | 2.98 – 3.26 | 3.20 – 3.48 |
| Maxi-2.5 | 3.48 – 3.76 | 3.70 – 3.98 |
| Maxi-3.0 | 3.98 – 4.26 | 4.20 – 4.48 |
| For 4.50m long Trench boxes, add 40mm to the ‘External Width’ column. | ||
