What area will 850kg of gravel cover | how much does 850 of gravel cover | how much does 850kg of chipping or pebbles cover | how much does 850kg of cobbles cover.

If you want to estimate the required quantity of gravel, chipping, pebbles or cobbles for your driveway, pathway, patio or for your planting area, you should know the dimension of your projects, what is their area and how your depth should be.

Calculating the total amount of gravel you will need for your pathways can sometimes be overwhelming. So for help, this article will provide you easy calculation methods for amount of gravel you will need for your project. We know about what area will 850kg or bulk bag or tonne bag of gravel cover, by knowing this you can make an estimate and how to calculate the amount of gravel you will need for your project.

Landscaping materials such as gravel, chipping, pebbles, or cobbles are used to fill your pathways, driveway, patio or planting area. As per UK practices, gravel are sold in different bag size, small size of 25kg bag, 20kg bag, and large size of 800kg bag, 850kg bag, which are also known as Bulk bag or tonne bag.

To calculate the amount of gravel needed to cover your specific area, such as pathways or driveways, you will need to know the length, width and depth of your space. By calculating the size of your outdoor space, you can easily make rough estimate. In this article you know about “how much does 850kg of gravel cover”.

A cubic meter of typical gravel, chipping, pebbles or cobbles weighs approximately 1,680 kilograms 1.68 tonnes. A square meter of gravel with a depth of 50 mm weighs about 84 kg or 0.084 tonnes. But for estimate purpose, contractors and builders would take 1700kg/m3.

**What area will 850kg of gravel cover**

If you are looking to fill a driveway or path with gravel, we recommend the depth of the area should be 50mm (5cm) thick as it will experience higher traffic. For covering planted areas, the depth only needs to be around 30mm thick.

As per general rule of thumb, 850kg, or a bulk bag, or tonne bag of gravel, chipping, or pebbles will cover approximately **12 square metres** (12m2) area at recommended depth of 5cm (50mm) thick, and 16 square metres (16m2) at 3cm (30mm) thick. So, it would take approximately 70kg of gravel to cover 1 square metre area with a depth of 5cm and you will need 54kg of gravel to cover 1 square metre area with a depth of 3cm. And there are 43 bags of 20kg gravel needed to equates 1 Bulk bag or tonne bag.

**How many a 20kg bag of gravel in a bulk bag**

Regarding this, how many a 20kg bag of gravel in a bulk bag, Generally there are **43 bags** of a 20kg gravel in a Bulk or tonne bag. Thus, you will need 43 bags of 20kg gravel to equates 1 Bulk bag or tonne bag.

**How many a 25kg bag of gravel in a bulk bag**

Regarding this, how many a 25kg bag of gravel in a bulk bag, Generally there are **34 bags of a 25kg** gravel in a Bulk or tonne bag or 850kg. Thus, you will need 34 bags of 25kg gravel to equates 1 Bulk bag or tonne bag or 850kg.

**What area will 850kg of cobbles cover**

A bulk bag or 850kg of cobbles will cover approximately **6 square metres area** (6m2) at recommended depth of 10cm (100mm) thick. Generally cobbles are used for pavement roads, streets, and buildings.

**How much does 850kg of gravel cover**

Regarding this “how much does 850kg of gravel cover”, As per UK practices, a bulk bag or 850kg of gravel, chipping, or pebbles can cover approximately **12 square metres** (12m2) area at recommended depth of 5cm (50mm) thick, and 16 square metres (16m2) at 3cm (30mm) thick.

**How to calculate amount of gravel do i need**

Amount of gravel you will need depends on square footage and depth of your projects in cubic metres or cubic feet.

The first step is to calculate the area of the section you would like to cover with gravel. The area calculation = length x width (where length & width are 2 sides of a square or rectangular area).

The second step is to calculate volume of the section you would like to cover with gravel. The volume calculation = square footage × depth, result give us, amount of gravel required for projects

Suppose, if you are creating a path of 100m long by 3m wide at 5cm thick, the first step is to calculate area = 100m × 3m = 300m2, then the second step is to calculate volume = 300m2 × 0.05m = 15m3, this is required quantity of gravel, so, you will need 25 bags of 850kg or bulk bag gravel to cover 300 square metres area at standard depth of 5cm thick.

**Conclusions:-**

As per general rule of thumb, 850kg or a bulk bag or tonne bag of gravel, chipping, or pebbles will cover approximately 12 square metres (12m2) area at recommended depth of 5cm (50mm) thick, and 16 square metres (0.5m2) at 3cm (30mm) thick.