Patio Mortar Calculator | Paving Bed Calculator

This Patio mortar calculator accurately estimates the quantity of mortar needed for your paving slab project and avoids unnecessary wastage.

Planning a patio paving project involves several crucial considerations, and one essential aspect is determining the required amount of mortar.

Patio Paving Mortar Calculator

To assist you in this endeavor, we have developed a user-friendly Patio Mortar Bedding Calculator.

Patio Mortar Bed Calculator

How to Use the Patio Mortar Calculator:

Using the sand and cement paving Mortar Calculator is a straight forward process. Follow these simple steps to estimate the amount of mortar required for your patio project:

  1. Measure the Patio Area: Begin by measuring the length and width of your patio using a tape measure. Note down the measurements in either square meters or square feet.
  2. Determine the Mortar Thickness: Decide on the desired thickness of the mortar bed for your patio. Typical recommendations range from 10mm to 25mm (0.4 inches to 1 inch). Ensure consistency in the units of measurement.
  3. Input the Values: Enter the measured patio area and the desired thickness of the mortar bed into the designated fields of the Mortar Calculator.
  4. Calculate the Mortar Quantity: Click the “Calculate” button to instantly obtain the amount of mortar needed for your patio project.
  5. Plan and Execute: Armed with the calculated mortar quantity, you can confidently proceed with purchasing the necessary materials, scheduling deliveries, and commencing the construction of your patio.

Why Use the Patio Mortar Calculator?

Accurate Estimation

The Patio Mortar bed Calculator eliminates the guesswork by providing precise calculations based on your patio’s area and the desired thickness of the mortar bed. This ensures that you have the right amount of mortar for your project, preventing shortages or excess supplies.

Time and Cost Efficiency

By knowing the exact quantity of mortar required, you can plan your project more efficiently. This helps you optimize your budget, reduce unnecessary expenses, and minimize time spent on multiple trips to the store for additional supplies.

Avoids Wastage

Overestimating or underestimating the amount of mortar can lead to wastage or delays in your project. The calculator ensures that you order just the right amount of materials, reducing unnecessary expenses and minimizing the environmental impact.

Enhanced Planning and Organization

Having accurate calculations from the Patio Mortar Calculator enables you to plan your project timeline more effectively. You can schedule deliveries, organize labor, and coordinate other project tasks with confidence, ensuring a smooth and efficient workflow.

Guide to Patio Mortar: Everything You Need to Know

Creating a beautiful and durable patio involves careful consideration of various factors, and one crucial element is the mortar used for the installation.

The right mortar mix, thickness, and proper application techniques play a vital role in ensuring a long-lasting and structurally sound patio.


How thick should mortar be under paving slabs?

The recommended thickness of mortar under patio slabs typically ranges from 25mm to 40mm (1 inch to 1.5 inches). It is a good idea to aim for 30mm as this will give you room for veriations in the hight of your sub base.

What is the correct mortar mix for patio paving slabs?

The correct mortar mix for your patio paving slabs would be 1 part cement to 4 parts sand. However 1:6 is ok for bigger havier slabs. I like to add a shovel full of hydraulic lime if i have some handy.

How do I calculate the amount of mortar needed for my patio project?

To calculate the amount of mortar needed for your patio project, measure the area of the patio and multiply it by the desired thickness of the mortar bed. This will give you the volume of mortar required.

Should I use a bonding agent when applying mortar to my paving slabs?

Yes you should use a bonding agent when applying mortar to paving slabs, such as a latex-based primer or bonding adhesive. This will enhance the bond between the patio slabs and the mortar bed. It can improve the overall strength and durability of the patio installation.

Can I use mortar to fix loose or cracked patio slabs?

Mortar can be used to fix loose or cracked patio slabs, but it’s important to assess the extent of the damage. In some cases, it may be necessary to remove and replace the damaged slabs instead of relying solely on mortar repairs. Consult with a professional to determine the best course of action for your specific situation.



By providing accurate calculations the paving bed calculator enables you to plan your project effectively, minimize wastage, optimize costs, and streamline your construction timeline.

Embrace the convenience and precision of the Patio Mortar Calculator to ensure a successful and satisfying patio project that enhances the beauty and functionality of your outdoor space.

Author Profile

Mark Cullen
Mark Cullen
I have many qualifications and certificates in construction, such as City & Guilds, CPCS and CITB. These are the highest standards of training and competence in the industry. Whether you need help with plumbing, carpentry, bricklaying or any other trade, I’m here to help you succeed.