Concrete Sleeper Non-Perishable Wedges
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Non-perishable plastic wedges sit between the concrete sleeper and the steel post to pack out the gap, so each course sits level and the wall face finishes flush and straight.
A sleeper dropped into a post channel has play in it. The wedge chocks the sleeper forward against the front flange, taking up the tolerance between the post centres and the actual sleeper length. Skip them and you get a wall that is structurally fine and visibly wavy.
Timber packers rot and crush, and when they do the course above settles unevenly. These do not.
| Pack | Price | Per wedge |
|---|---|---|
| 50 | $20.00 | 40c |
| 100 | $35.00 | 35c |
| 300 | $95.00 | about 32c |
The rate per wedge drops as the pack gets bigger, so on anything beyond a short wall the 300 pack is the one to take.
Work on roughly two wedges per sleeper as a starting point, which is what our wall calculator uses.
A 10 metre wall, 1 metre high, in 2380mm sleepers works out at 5 bays and 5 courses, so 25 sleepers and about 50 wedges. The same wall in 1480mm sleepers is 7 bays and 35 sleepers, so about 70 wedges. Tight access, out of square posts or a curved wall line all push the number up.
Order more than the calculation says. Wedges are the cheapest item on the list, they get dropped, buried and lost in the backfill, and running out halfway along a wall is a genuinely annoying way to lose an afternoon. Leftovers keep indefinitely.
These are sized for 75mm thick concrete sleepers. If you are building with composite, you need the composite sleeper wedges instead, which suit the 60mm thickness. They are not interchangeable, so if you are running both materials on one job, order both.
Questions about your project? See our installation guides, request a quote, or call (07) 3716 0191.
Buying in volume?
Tell us the wall length, height and your delivery suburb. We do the take-off, confirm freight for your site and email an itemised quote with a secure payment link, within one business day.
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