Retention sockets are ideal solutions when it comes to replacing posts that are damaged by vehicle collide. With the help of pole retention sockets, the originally difficult and dangerous post changing and reinstalling work gets easier.
Skyhall Fence had taken international standards and post foundation requirements into consideration and developed various retention sockets to meet the rigorous demands of current urban environments.
In addition to complying with various regulations, we are also concerned about the safety of construction workers, drivers, and pedestrians. With the help of retention sockets, congestion on the road network is significantly reduced by eliminating repeat excavation.

Foundation Detail | |||||||
Socket Depth | 300 | 450 | 600 | 740 | 900 | 1200 | |
SKH SOCKET SIZE | Post Height | Foundation Size (MM) | |||||
SKH-76TS | 4m | 750x750 | 650x650 | 610x610 | - | - | - |
SKH-89TS | 6m | 1050x1050 | 910x910 | 850x850 | 810x810 | 790x790 | - |
SKH-115TS | 6m | 1130x1130 | 990x990 | 920x920 | 880x880 | 850x850 | - |
SKH-140TS | 8m | 1480x1480 | 1300x1300 | 1200x1200 | 1140x1140 | 1110x1110 | - |
SKH-145TS | 8m | 1500x1500 | 1310x1310 | 1220x1220 | 1160x1160 | 1120x1120 | - |
SKH-168TS | 10m | 1850x1850 | 1610x1610 | 1490x1490 | 1410x1410 | 1370x1370 | - |
SKH-177TS | 10m | 1880x1880 | 1640x1640 | 1510x1510 | 1440x1440 | 1390x1390 | - |
SKH-193TS | 12m | 2200x2200 | 1920x1920 | 1770x1770 | 1680x1680 | 1620x1620 | 1560x1560 |
SKH-200TS | 12m | 2230x2230 | 1940x1940 | 1790x1790 | 1690x1690 | 1630x1630 | 1570x1570 |
SKH-219TS | 12m | 2290x2290 | 2000x2000 | 1840x1840 | 1740x1740 | 1680x1680 | 1620x1620 |
SKH-226TS | 12m | 2320x2320 | 2020x2020 | 1860x1860 | 1760x1760 | 1700x1700 | 1640x1640 |
SKH-245TS | 14m | 2650x2650 | 2300x2300 | 2120x2120 | 2010x2010 | 1940x1940 | 1860x1860 |
SKH-250TS | 14m | 2660x2660 | 2320x2320 | 2130x2130 | 2020x2020 | 1950x1950 | 1870x1870 |
FOUNDATION SIZE SHOWN HERE ARE GUDELINES ONLY. |

The high-strength retention sockets are durable enough to survive vehicle impact. And due to the re-usability, retention post sockets provide cost-effective solutions for infrastructure maintenance and post replacements.
By traditional methods, traffic signal posts and signposts are installed in concrete or bolted to a concrete foundation. Complex procedures are needed especially when it comes to post changing or reinstalling. On the contrast, the retention sockets will eliminate repeat excavations and make your project completed easier and faster.


By eliminating repeat excavations, retention sockets significantly reduce the damage to the environment that might be caused previously.
Retention Sockets are usually used for
- Traffic Signal Posts
- Sign Posts
- Bollards
- Traffic Control System
- Other Street Furniture Items
Retention Socket FAQ
Where is the retention socket commonly used?
The retention socket can be used for various purposes like traffic signal posts, signposts, bollards and other traffic control systems.
How to install the retention socket?
You can install the retention sockets by following the instruction below.
- Prepare a hole at least 75mm deeper than the overall height of the retention socket.
- Compact at least 75mm of MOT-type granular material in the base of the hole.
- Position the retention socket in the centre of the hole.
- Rotate the socket head into the required orientation. Remove the locking lid, loosen the two locking set screws and remove the pedestrian plug.
- Install a leveling post in the retention socket, fasten the locking set screws and replace the locking chamber lid.
- Surround with the required amount of concrete.
SKYHALL® Fence is a certified welded mesh fence manufacturer and exporter of welded mesh fences, barbed wire, road bollards , and gabion in China. With customers around the world, We have sparked a global supply within the fencing system and accessory products.
Established in 2009, SKYHALL® Fence was founded with the aim of being the most valuable brand in the metal fencing industry and a trusted supplier that is well respected around the world.
We have been underpinned by 3 key principles since the very beginning: Professional, Reliable and Affordable.
Professional solutions to help our customers accomplish any projects related to welded fencing and the accessories.
Reliable quality and productivity to promise a stable supply and immediate delivery.
Affordable prices to achieve our customers' goals under low budgets.
Why Choose SKYHALL® Fence as Your Welded Metal Fence Manufacturer
We have been in the metal fence industry for over 14 years. Based on the rich exporting experience accumulated during the order fulfillment to our customers distributed in North and South America, Europe, Australia, Africa, and the Middle East, we know the exact standards you are expecting for your next projects.
We are professional in providing fencing support for construction projects either from the giant group or the government. So far we have helped many customers from the Middle East and Europe get project bids successfully.
Certified Welded Fencing Products
All our metal fence products possess authorized certifications to assure you of quality products. Main certifications include ISO 9001, ISO14001, ISO45001, and CE. Besides, we promise 10 years warranty to provide a reassuring after-sale service.


Professional Design for Free
If you have no idea about what style or specification of metal fence is suitable for your project, just turn to our professional team for help. They will offer modern fence designs to you at the earliest and provide practical solutions accordingly.
Customized Service Available
We know customers' requests for fence specifications vary depending on various applications for different projects. We provide customized services to meet all your needs for a specific project. Just let us know your demand and leave the rest behind.
Q: Are you a trading company or a manufacturer?
A: We are a professional metal fence manufacturer with our own factory and production equipment.
Q: How do you guarantee your metal fence?
A: We have a quality control team to inspect our products before, during and after production. Any defect will be detected and separated. We promise all our products are qualified.
Q: Do you offer a warranty on your fence?
A: Yes. SKYHALL® Fence offers 10 years warranty for our metal fence to protect your benefits. You can download the file of the warranty that applies to your product accordingly.
Q: Can you offer a free sample?
A: Yes, we can offer small samples for free.
Q: What is your payment term?
A: 30% T/T in advance ,and the balance before shippment.
Q: Do you provide an onsite inspection service?
A: Yes. After the products are ready, we can provide a live onsite inspection service by video as our customers required.
Q: Can I customize the products?
A: Absolutely. We can produce metal fences according to your specialized requests. Just send us the specification, drawings, and other items that need to be aware of.
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