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Slotted Concrete Fence Posts | Durable H-Posts for Timber & Composite Fencing

Our slotted concrete fence posts are strong, long-lasting, and maintenance-free – perfect for supporting timber fence panels with a secure and clean finish. Also known as H-posts, these posts feature pre-formed slots to easily slide in fence panels or gravel boards, making installation quick and hassle-free.

✅ Reinforced with steel for added strength
✅ Slotted design suits most standard fence panels
✅ Weatherproof and rot-proof – ideal for UK conditions
✅ Available in multiple lengths (6ft, 8ft, 9ft, etc.)

Trusted by landscapers, contractors, and DIYers for garden fencing, boundary fences, and security installations. Pair with concrete gravel boards and treated timber panels for a full fencing solution. Nationwide delivery available.

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8ft Intermediate concrete post 2440mm Fenn-lite 35kg each slot size 55mm-50mm

£19.20 - £19.20
£19.20
£19.20 - £19.20
£19.20
In stock

£19.20 - £19.20
£19.20
£19.20 - £19.20
£19.20

8ft end concrete post 2440mm x 105 x 80 -- 40kg each slot size 55mm -50mm

£26.40 - £26.40
£26.40
£26.40 - £26.40
£26.40
In stock

£26.40 - £26.40
£26.40
£26.40 - £26.40
£26.40

8ft Concrete corner post 2440mm x 130 x123 -- 59kg each slot size 55mm -50mm

£37.20 - £37.20
£37.20
£37.20 - £37.20
£37.20
In stock

£37.20 - £37.20
£37.20
£37.20 - £37.20
£37.20

6ft Concrete Intermediate post 1830mm /1.83m Fenn-lite 27kg each

£18.00 - £18.00
£18.00
£18.00 - £18.00
£18.00
In stock

£18.00 - £18.00
£18.00
£18.00 - £18.00
£18.00

6ft concrete end post 1830mm x 105 x 80 -- 31kg each slot size 55mm -50mm

£21.60 - £21.60
£21.60
£21.60 - £21.60
£21.60
In stock

£21.60 - £21.60
£21.60
£21.60 - £21.60
£21.60

6ft Concrete corner post 1830mm x 130 x123 -- 42.3kg each slot size 55mm -50mm

£31.08 - £31.08
£31.08
£31.08 - £31.08
£31.08
In stock

£31.08 - £31.08
£31.08
£31.08 - £31.08
£31.08

6 inch plain concrete gravel board 1830mm x 150mm x 45mm

£13.20 - £13.20
£13.20
£13.20 - £13.20
£13.20
In stock

 LW for slotted concrete posts 1830mm x 150mm x 45mm 27.7kg each

£13.20 - £13.20
£13.20
£13.20 - £13.20
£13.20

12 inch Rockface concrete gravel board 1830mm x 305mm x 45mm

£17.88 - £17.88
£17.88
£17.88 - £17.88
£17.88
In stock

 WC for slotted concrete posts 1830mm x 305mm x 45mm 59.1kg each

£17.88 - £17.88
£17.88
£17.88 - £17.88
£17.88

10ft Concrete Intermediate post 3050mm 73kg each slot size 55mm - 50mm

£36.00 - £36.00
£36.00
£36.00 - £36.00
£36.00
In stock

£36.00 - £36.00
£36.00
£36.00 - £36.00
£36.00

10ft concrete end post 3050mm x 105 x 80 - 77kg each slot size 55mm-50mm

£40.80 - £40.80
£40.80
£40.80 - £40.80
£40.80
In stock

£40.80 - £40.80
£40.80
£40.80 - £40.80
£40.80
Rating
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Craig Fraser
June, 2025
Have used Alter landscapes for the past few years for various materials since I started out on my own. Very professional, family run business, office staff always organised friendly and materials always delivered to site on time. Prices very competitive - in line with most other competitors prices. Stock - 95% of time ordering materials they've been in stock (which in the current climate is hard to come by) Quality - the quality of materials has never been an issue, and always been happy. Would recommend Alter supplies to all and with the opening their new yard and office very soon they are definitely going to be more accessible for other trades.
Shona MacDougall
June, 2025
customer service staff and delivery are great Every builders merchant should be like them
Gary Stevenson
May, 2025
Great service and great quality very friendly staff no issues whatsoever just call if can’t get order on line great stuff crazy not to use alter timber be back thanks
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