Concrete, Bricks and Soil: Which Skip Bin Do You Actually Need for Heavy Waste?

There’s a moment in almost every Brisbane demo job where someone stands next to a pile of broken concrete and says, “we’ll just get the biggest bin.”

It’s the most common mistake we see. Heavy waste doesn’t work like household rubbish, and the biggest skip bin on the truck is usually the wrong answer — not because of what it holds, but because of what the truck is legally allowed to lift.

Here’s how heavy waste skip bin hire actually works, so you order the right bin the first time.

What counts as heavy waste?

Heavy waste, sometimes called hard waste or clean fill, is anything dense enough to hit a weight limit long before it fills a bin. In Brisbane, that usually means:

• Concrete, bricks and pavers
• Soil, dirt, sand and clay
• Rocks, pebbles, gravel and stones
• Roof tiles
• Mulch, stumps and tree trunks

If you’re pulling up an old driveway, demolishing a retaining wall, re-levelling a yard or digging out garden beds, you’re dealing with heavy waste — even if the pile doesn’t look that big.

Concrete 100% or Heavy (Mixed) – what’s the difference?

Magic Bins runs two separate heavy waste streams, and the difference comes down to how clean the load is.

Concrete 100% is for strictly uncontaminated, clean, dry concrete — including reinforcing steel — plus bricks, pavers and roof tiles. Nothing else goes in. No timber offcuts, no plastic sheeting, no bag of general rubbish tossed on top at the end of the day.

That’s not us being fussy. Clean concrete gets crushed and recycled back into road base and aggregate, which is why it’s processed differently to mixed loads. If a concrete bin turns up contaminated, the load is reclassified as Heavy (Mixed) and additional costs apply.

Heavy (Mixed) is the more forgiving option. It takes the full range of heavy materials — soil, concrete, bricks, sand, rocks, stumps — and you can also throw in household items, furniture, green waste and light builders’ materials in the same bin at no extra cost, as long as there are no prohibited items.

The simple rule: if your load is nothing but clean concrete and masonry, book Concrete 100%. If there’s soil in it, or you know a few odds and ends will end up in there, book Heavy (Mixed) from the start and save yourself the reclassification.

Why is 6m³ the biggest bin for heavy waste?

This is the one that catches people out.

Magic Bins carries skip bins from 2m³ up to 12m³, but heavy waste can only go in bins up to 6m³. Our 8m³, 10m³ and 12m³ bins are weight limited and can’t be used for heavy materials like dirt, concrete or bricks at all.

There’s no weight limit on heavy waste bins up to 6m³. Above that, the combination of volume and density puts the truck over what it’s permitted to lift and transport on the road. It’s a safety and compliance limit, not a pricing one.

So if you’ve got a big driveway coming out, the answer isn’t one enormous bin, it’s the right heavy waste bin, swapped over as many times as the job needs.

How full does a heavy waste bin need to be?

Heavy waste needs to fill at least 70% of the bin. That’s a minimum, not a maximum.

It sounds counterintuitive, but a half-empty heavy bin means a truck movement that isn’t carrying a viable load. If you’re not sure your pile will get there, tell us what you’ve got and we’ll steer you to a smaller bin rather than have you pay for space you won’t use.

At the other end: loads cannot be filled past the rim of the skip. We’re prohibited from transporting overloaded bins, so anything heaped above the rim has to come off before we can lift it. Level and flat is the goal.

Can you machine load a heavy waste skip bin?

Yes — our standard heavy waste and concrete bins can be machine loaded, which is what you want if there’s a bobcat or excavator already on site.

One catch worth knowing before you book: our 4m³ and 6m³ bins with doors are hand load only. The doors make wheelbarrow access much easier (and they come at no extra charge), but a door bin can’t take machine loading. Pick based on how the material is going in:

• Bobcat or excavator on site? Standard bin, no door.
• Wheelbarrow, shovels and a few mates? Door bin, hand loaded.

What can’t go in a heavy waste bin?

Regardless of which heavy stream you book, these items are prohibited:

• Batteries
• Tyres
• Paint and oil
• Asbestos
• Food and liquids
• Gas bottles

Most of these have proper disposal pathways through Brisbane City Council — our guide to safely disposing of hazardous household waste in Brisbane walks through where each one goes.

What about asbestos-contaminated concrete?

Older Brisbane homes make this a real consideration. Asbestos cement sheeting, fibro and some older concrete work can’t go anywhere near a standard bin — asbestos-contaminated concrete requires a separate lined skip bin.

Magic Bins is licensed to transport and dispose of asbestos, but these loads must be pre-arranged. Bins are delivered double-lined in heavy-duty plastic, and a Waste Transport Certificate can be issued after collection if you need one for compliance records.

If you’re not certain what you’re dealing with, treat it as asbestos until it’s confirmed otherwise, and give us a call before the demo starts. Our asbestos removal bins page has the full detail.

Which bin for common Brisbane jobs?

These are starting points, not gospel. Site access, how the material is coming out and what else is going in the bin all shift the answer — which is exactly why we talk it through before quoting.

Get the right bin on site the first time

Heavy waste is the one job where guessing costs you money. Order too big and it can’t be lifted. Order the wrong stream and the load gets reclassified. Order too small and you’re waiting on a swap mid-job.

Tell us what you’re pulling out and how it’s coming out, and we’ll match it to the right bin. Our quotes are a flat rate covering delivery, collection, tipping and GST — no surprise weight charges after the fact — and we can usually have a bin on site within 24 hours of booking, sometimes same day.

Enquire online or call the team on 07 3829 9457.