Perth metro
- Delivery time: 3–5 business days
- Coverage: all Perth metropolitan postcodes
Westbuild Kwikset Concrete – 20kg Rainproof Bag
$8.50
Fast-setting concrete mix for fence posts and non-structural supports. No mixing required—just add water. Sets in 5–15 minutes. Ideal for quick and easy installations.
Christmas Closure
We close on 19 December and reopen on 5 January. No orders or installs will be processed during this period.
We close on 19 December and reopen on 5 January. No orders or installs will be processed during this period.
Delivery Policy
Applies to orders across Western Australia. Transparent rates, clear timelines, and quick support.
Perth metro: $80 incl. GST
Bunbury & South-West: $80 incl. GST
Depot pickup: Free
Standard delivery: 3–5 business days
Cut off: 4:00 PM (GMT+8)
Delivery options and costs Upfront pricing
Bunbury and South-West WA
- Delivery time: 3–5 business days
- Coverage: Bunbury and selected South-West regions*
*Delivery is limited to areas within a 40km radius of Bunbury or certain South-West WA regions. Please confirm coverage before placing your order.
Depot pickup
Orders are packed within 2 business days. We will confirm when ready for pickup.
Outside zones or oversize items
- Freight confirmation provided within 1 business day after order
- Final timeframe confirmed with the freight quote
- Place the order and we will contact you with the best option and cost
Order cut off and processing Same-day processing
Cut off
- Orders placed before 4:00 PM (GMT+8, Perth) are processed the same business day
- Orders placed after 4:00 PM, weekends, or public holidays are processed the next business day
Timeframes
- Standard delivery: 3–5 business days for Perth metro and Bunbury/South-West
- Regional and oversize: confirmed during the freight quote
Returns and change of mind 30-day window
- Change-of-mind returns accepted within 30 days of delivery
- A 10% restocking fee applies
- Items must be unused, in original packaging, and include proof of purchase
- Return freight is the customer’s responsibility unless the product is faulty or damaged
Damaged or incorrect items Notify within 48 hours
If your order arrives damaged or incorrect, please contact us within 48 hours of delivery. We will arrange a replacement or refund as quickly as possible.
Contact us We are here to help
Perth (Balcatta)
Bunbury (Davenport)
Last updated: 10 September 2025
Kwikset Concrete – 20kg Fast Set Post Mix
Quick-setting concrete for fence posts and non-structural applications
Product Overview
Westbuild Kwikset Concrete is a ready-to-use, fast-setting concrete mix ideal for setting fence posts, letterboxes, clothes hoists, and other non-structural supports. No mixing is required—simply pour the dry mix into the hole and add water. It sets in just 5–15 minutes, making it perfect for fast-paced fencing jobs.
Key Features
- Fast setting: 5–15 minutes
- No mixing required – just add water
- Suitable for timber and steel posts
- Rainproof, tear-resistant 20kg bag
- Ideal for non-structural applications
Specifications
- Bag Size: 20kg
- Coverage: Approx. 1 post per bag (0.01m³)
- Strength: Up to 15MPa
- Application: Non-structural post setting
Availability
We aim to have your order ready for pickup or delivery within 3 working days.
Delivery available to Perth Metro areas only.
If you are outside the Perth metro area, please call us for a delivery quote.
Important Notes
- Always add Kwikset to water, not water to Kwikset.
- Not suitable for structural concrete or surface finishing.
- For structural applications, consider using Westbuild General Purpose Concrete or Concrete40.
| Weight | 20 kg |
|---|---|
| Dimensions | 35 × 20 × 15 cm |
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