For fast, dependable setting of posts, fence posts, signs, or any vertical fixings, the Kilsaran Postcrete 20kg Bag is a trade and DIY favourite. This ready-to-use, high-strength concrete mix saves time on site, providing a secure, long-lasting fix without the hassle of measuring cement, sand, or aggregates. Just mix with water and you’re ready to go.
Ideal for domestic and light commercial applications, Kilsaran Postcrete sets quickly while maintaining excellent strength and durability. Its pre-blended formula reduces waste and ensures consistent results, even for first-time users.
Key Features:
Ready-to-Use Convenience: Simply add water—no need for separate cement, sand, or gravel. Perfect for rapid fence post installations.
High Strength: Achieves a solid, durable set suitable for domestic fences, garden structures, or signposts.
Fast-Setting Formula: Sets in as little as 20–40 minutes, allowing work to continue without long delays.
Weather-Resistant: Maintains strength in a variety of conditions, making it suitable for outdoor use in all seasons.
Versatile Application: Ideal for timber, metal, or concrete posts; also excellent for garden structures or small structural fixes.
Technical Specifications:
Bag Size: 20kg
Coverage: 1 x 20kg bag sets 1 fence post in approx. 60–80mm diameter hole
Setting Time: 20–40 minutes (depending on temperature & conditions)
Material: Pre-blended cementitious mix
TJ’s Tip:
For a solid, long-lasting post, dig a hole at least 600mm deep, place your post centrally, pour Postcrete around it, and tamp lightly. Avoid over-watering—just enough to create a firm mix. For multiple posts, prepare each bag individually for best results.
We offer reliable delivery services throughout the Republic of Ireland, with straightforward delivery charges for both trade and DIY customers. Delivery options are confirmed at checkout based on your order and delivery Eircode.
Delivery Charges & Delivery Times
Delivery Type
Delivery Area
Delivery Charge
Delivery Time
Small Items
Republic of Ireland
€9.99
3–4 working days
Large & Heavy*
Standard delivery area
€29.99
5–7 working days
Extra Large*
Standard delivery area
€50.00
5–7 working days
Paint 5L or less**
Standard delivery area
€19.99
5–7 working days
Swipe sideways to compare delivery options.
Small Items
Delivery area
Republic of Ireland
Charge
€9.99
Delivery time
3–4 working days
Large & Heavy*
Delivery area
Standard delivery area
Charge
€29.99
Delivery time
5–7 working days
Extra Large*
Delivery area
Standard delivery area
Charge
€50.00
Delivery time
5–7 working days
Paint 5L or less**
Delivery area
Standard delivery area
Charge
€19.99
Delivery time
5–7 working days
*Standard delivery policy. Promotional delivery rates may apply during campaigns.
Additional Information
FREE delivery on eligible Small Items and Large & Heavy orders over €1,499, within the standard delivery area only.
Special Order and Catalogue Products require an additional 5 working days.
FREE collection of old appliances is available through WEEE Ireland when purchasing qualifying large appliances.
FREE Click & Collect is available for items in stock at your selected branch.
Large & Heavy and Extra Large items are available within our standard delivery area only.
Paint delivery Paint in tin cans 5L or less is available for delivery. Larger sizes and paint supplied in plastic buckets are available for Click & Collect only.
TJ O'Mahony offers a 30-day returns policy on eligible unused products, giving you additional time beyond the statutory 14-day cooling-off period applicable to most online consumer purchases.
Eligible products can be returned for a refund or exchange within 30 days of delivery or collection, provided they are unused, in their original and re-saleable condition, complete with all supplied parts and accessories, and accompanied by proof of purchase.
Please note: Return restrictions apply to certain products, including Mixed Paint, certain Bagged Building Products, Solid Fuel, Special Order, Non-Stock and Catalogued Products.
Your statutory rights in relation to faulty, damaged, incorrectly supplied or non-conforming goods are not affected.
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