"Always get a superb service from the team at Nicks timber." | 80+ Google Reviews

SKU: CEM0004

Postcrete 20kg Post Mix

Regular price £6.15 ex VAT £7.38 inc VAT
£6.15 ex VAT £7.38 inc VAT
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Pickup available at Nicks Timber - Canada Wharf, Bristol Road, GL1 5TE

Usually ready in 24 hours

Check delivery to your postcode

Delivered on our own lorry in 3–5 working days. We'll call to confirm your day.

  • Delivered on our own lorries
  • Free collection from Gloucester, usually ready in 24 hours
  • Timber merchants since 1856
  • 80+ five-star Google reviews

Postcrete is a fast-setting post mix concrete designed specifically for setting fence posts, gate posts, and garden structures quickly and easily. Simply pour the dry powder into the hole around the post, add water, and the concrete sets in as little as 10 minutes — no mixing required.

One 20kg bag is sufficient for a standard 100mm x 100mm fence post hole. For best results, pack hardcore or gravel around the base of the post before adding Postcrete to improve drainage.

How to Use

  • Dig hole to the correct depth (minimum 600mm for a 1.8m fence)
  • Position post and check it's plumb using a spirit level
  • Pour dry Postcrete directly into the hole around the post
  • Add water as directed on the bag
  • Leave to set — typically 10 minutes before loading

Key Features

  • Fast-setting — around 10 minutes
  • No mixing required — just add water
  • One 20kg bag per standard post
  • Suitable for fence posts, gate posts, and garden structures

We stock everything for a complete fence installation including fence posts, featheredge boards, arris rails, and gravel boards. Free delivery is available on qualifying orders.

Images are for illustrative purposes only and may not represent the exact product supplied.

Buying from Nicks Timber

Can I collect it myself?

Yes, collection is free from our yard at Canada Wharf, Bristol Road, Gloucester GL1 5TE. Choose Collect in your basket and at checkout.

We're open Monday to Friday 7:30am–5pm and Saturday 8am–1pm.

Do your prices include VAT?

Use the Ex VAT / Inc VAT switch at the top of the page to see prices either way. Your basket shows the VAT and the full total before you pay.

Can you cut timber to size?

Yes. We cut and machine timber to your sizes in our own mill, and can make bespoke profiles and mouldings. Please call us on 01452 300159 before ordering. Bespoke work usually takes 7–10 working days.

What if something's wrong with my order?

Please tell us about any damage within 48 hours of delivery. Goods can be returned in the condition they arrived within 10 working days, subject to a 25% restocking charge. See our returns policy.