Rules guide
Skip Weight Limits Explained (and Why Bigger Is Not Always Better)
Why a smaller skip is often right for soil and rubble, how weight limits work, and how to avoid an overweight skip.
Why skip hire has weight limits
Every skip has two limits: volume (measured in cubic yards) and weight (measured in tonnes). The volume limit is the obvious one, but the weight limit catches people out, especially with heavy materials like soil, concrete, bricks and tiles. A 6-yard skip filled to the brim with soil can weigh four to five times more than the same skip filled with mixed household rubbish. That extra weight matters for road safety, vehicle axle loads and the cost of disposal at the recycling facility.
Typical weight limits by skip size
- 2-yard mini skip: around 1 to 1.5 tonnes
- 4-yard builder's skip: around 2 to 2.5 tonnes
- 6-yard skip: around 3 to 3.5 tonnes
- 8-yard skip: around 4 to 5 tonnes
- 12-yard maxi skip: around 6 to 7 tonnes
- 20-yard and 40-yard RoRo containers: 10 to 20 tonnes, priced by weight
Heavy and inert waste: the materials that fill weight allowances fast
Soil, hardcore, concrete, bricks, tiles, slate and sand are classed as inert or heavy waste. They compact tightly and weigh a great deal for their volume. A single tonne of soil takes up roughly half a cubic yard. Fill a 4-yard skip with nothing but soil and you will hit the weight limit with the skip less than half full by volume. Visually the skip looks nowhere near full, but it is already at its legal limit. Adding more on top of that is an overweight load.
What happens if a skip is overweight
An overweight skip creates a problem at the point of collection. Our vehicles operate under legal axle weight limits set by the Driver and Vehicle Licensing Agency. If a skip is too heavy to load safely, the driver cannot take it. You may face a surcharge for an additional collection trip, or you will need to remove some material before we can lift it. Neither outcome is convenient, so it is worth getting the sizing right before the skip is delivered.
Why a smaller skip is often the right choice for rubble and soil
For a patio, driveway or foundation dig-out, a 2-yard or 4-yard skip filled sensibly with heavy material is often better value than a larger skip that you cannot legally fill to the top. A 2-yard mini skip holding one tonne of concrete costs less to hire and less to dispose of than a 6-yard skip with two tonnes of concrete in the bottom and an empty top half. If your job produces a mix of heavy rubble and lighter mixed waste, we can advise on splitting the loads across two skips or using a grab lorry for the heavy material.
Mixed loads and the level-load rule
For skips with a mix of materials, the waste must not be loaded above the rim of the skip. This is a legal requirement, not just a company policy. Materials above the rim can fall from the skip during transport and cause serious accidents. When heavy waste sits at the bottom and lighter waste fills the rest, a standard skip usually reaches its volume limit before it reaches its weight limit. The problem only arises when the load is predominantly heavy material.
Plasterboard and heavy waste: keep them separate
Plasterboard is a prohibited item in general mixed skips. This is because gypsum, the main component of plasterboard, produces hydrogen sulphide gas when it decomposes in landfill alongside organic waste. Plasterboard must go to a facility licensed to handle it. If your project produces both plasterboard and heavy waste like soil or concrete, those streams need to be separated. We can advise on the right container for each type.
How to tell us what material you have
When you book, tell us roughly what type of waste you are loading. Knowing whether it is a garden clearance, a concrete break-out or a mixed house renovation job helps us recommend the right size and make sure the skip we deliver has the right weight allowance for your material. If you are unsure, give us a call and describe what you have. We cover a 30-mile radius from Faringdon, across Oxfordshire, Wiltshire, the Cotswolds and West Berkshire, and we know the types of jobs that come up in each area.
FAQs
Can I put soil and concrete in any skip?
You can, but heavy materials like soil and concrete fill the weight allowance of a skip much faster than you might expect. For purely inert waste, a smaller skip is usually the right call. Tell us what you are loading when you book and we will make sure you get the right size.
What happens if I go over the weight limit?
If a skip is too heavy to collect safely, our driver cannot take it. You will either need to remove some material before collection or pay a surcharge for an additional visit. To avoid this, err on the side of a smaller skip for heavy waste rather than a larger one.
Is there a separate price for heavy waste disposal?
Inert waste like soil and concrete generally costs more to dispose of per tonne than mixed skip waste. Our quotes reflect the type of material you describe at the time of booking. RoRo containers for large volumes of inert waste are usually priced by weight rather than a flat hire fee.
Why is plasterboard banned from mixed skips?
Plasterboard contains gypsum, which releases toxic hydrogen sulphide gas when it breaks down in landfill alongside organic material. Regulations introduced in 2009 require plasterboard to be kept separate and sent to a dedicated recycling facility. We can arrange the right container for plasterboard waste.