# How do you calculate screeding per square meter

To calculate wall screeding per square meter, you need to consider a few factors such as the thickness of the screeding layer and the area of the wall to be screeded. Generally you will need 0.09 tonnes of sand and 1 x 25 kg bag of cement for screeding per square meter at a depth of 0.05 meter.

Here’s are step to step guide for how to calculate screed quantity:-

1. Measure the dimensions of the wall: First determine the length and height of the wall in meters by measuring tape. For example, let’s assume the length of the wall is 4 meters and the height is 3 meters.
2. Estimate the area of the wall: Multiply the length by the height to find the total area of the wall to be screed. The wall area = 4 meters (length) x 3 meters (height) = 12 square meters.
3. Determine the thickness of the screeding layer: The thickness of the screeding layer typically ranges from 15mm to 50mm, depending on the requirements. Let’s assume you want a minimum 15mm thick screeding layer.
4. Calculate the volume of screeding material: To calculate the volume, multiply the area of the wall by the thickness of the screeding layer. The volume = 12 square meters (area) x 0.015 meters (thickness) = 0.18 cubic meters.
5. Account for wastage and mixing ratio: Considering a wastage factor of 10%, you will need to multiply the calculated volume by these factors. For example: 0.18 cubic meters (volume) x 1.1 (10% wastage) = 0.20 cubic meters.
6. Calculate dry volume of screed: Dry volume of screed = Wet volume × 1.33 = 0.2m3 × 1.33 = 0.266 m3, means to prepare 0.2m3 of screed you may need 0.266 m3 of dry ingradients of sand and cement.
7. Decide mixing ratio of 1:4: Let’s assume a mixing ratio of 1:4, where one part is cement is mixed with four parts of sand. Since the mixing ratio is 1:4, you would need 1/5 of the calculated volume for cement and 4/5 for sand.
8. Estimate the amount of cement required: Multiply the dry volume by the parts of cement to determine the quantity of cement needed. Volume of cement = 1/5 × 0.266 = 0.053 m3, cement quantity in kg = 0.053 × 1440 = 77 kg, cement quantity in bags = 77/25 = approx 3 bags.
9. Estimate the amount of sand required: Multiply the dry volume by the parts of sand to determine the quantity of cement needed. Volume of sand = 4/5 × 0.266 = 0.21 m3, sand quantity in kg = 0.21 × 1600 = approx 340 kg, sand quantity in bags = 340/25 = approx 14 x 25kg bags (or 0.34 tonnes).

Therefore, you will need 0.266 cubic meter (m3) of screed or 340kg (or approx 14 x 25kg bags) of sand and approx 3 x 25 kg bags of cement for an area with a length of 4 meter, a width of 3 meter, and a depth of 0.015 meter.

## How much sand and cement required per square meter screed

Here’s are step to step guide for how much sand and cement required per square meter screed

1. Estimate wet volume of screed: To calculate the volume, multiply the area of the wall by the thickness of the screeding layer. For one square meter area at a depth of 0.05 meter, the volume would be 1x 0.05 = 0.05 m3.
2. Account for wastage: Considering a wastage factor of 10%, required screed wet volume = 0.05 x 1.1 = 0.055 cubic meters.
3. Estimate dry volume of screed: Dry volume of screed = Wet volume × 1.33 = 0.055m3 × 1.33 = 0.073 m3.
4. Decide mixing ratio of 1:4: The mixing ratio is 1:4, you would need 1/5 of the calculated volume for cement and 4/5 for sand.
5. Estimate the amount of cement required: Volume of cement required = 1/5 × 0.073 = 0.0146 m3, cement quantity in kg = 0.0146 × 1440 = 21 kg, cement quantity in bags = 21/25 = approx 1 bag.
6. Estimate the amount of sand required: Volume of sand required = 4/5 × 0.073 = 0.0584 m3, sand quantity in kg = 0.0584 × 1600 = approx 94 kg (or 0.094 tonnes).

### How much screed do i need per square meter

The amount of screed needed per square meter depends on the thickness of the screed layer you intend to apply. Typically, screed is applied at a thickness of around 25mm to 50mm for most flooring applications.

To calculate the volume of screed needed per square meter, you can use the formula: Volume of screed = Area (in square meters) x Thickness (in meters). For example, if you’re applying screed at a thickness of 0.05 meters (50mm): The volume of screed = 1 square meter x 0.05 meters = 0.05 cubic meters. Therefore, you will need 0.05 cubic meters of screed per square meter at a thickness of 0.05 meters.

typically, 94 kilograms (approx. 0.094 tonnes) of sand and 1 x 25 kg of cement with the recommended mixture of 1:4 (cement and sand) are required per square meter of screed at a thickness of 0.05 meter.