Brick/Masonry Quantity Calculator

Wall thickness (stacking method]

Wall width

Wall height

brick street

vertical brick

brick height

Joint spacing (mortar thickness]

Weight of one bag of mortar

Surcharge (Loss]

Is there an area to deduct?

no yes

Please check.

To reduce result errors, you must standardize the input units (mm/m], so please check the units before entering actual measurements.
To prevent brick shortage defects, you must measure the wall width and height at at least three points and enter the longest one.
Accurately enter the area of openings, such as windows or doors, into the deduction area to prevent unnecessary material waste.
If there are many corner or column cuts, the damage loss is high, so it is safer to set the markup rate about 5% higher to be safe.
If the joint thickness (standard 10mm] changes, the area per sheet changes, which significantly affects the quantity, so please check the specifications and enter them.

How about this calculator?

Brick Calculator Requirement Calculation, Guide to Precise Calculation of Masonry Material and Mortar Quantities

We provide data optimized for actual orders, reflecting stacking methods, joints, openings, and markups.

Brick Requirement Calculation Formula

The brick requirement is not simply calculated by dividing the area by the brick size; you must also consider the thickness of the **mortar joints** between the bricks and the thickness based on the stacking method.

1. Calculation of Effective Construction Area

Construction Area = (Wall Width x Height] - (Window/Door Area]

First, subtract the area of openings containing windows or doors from the total wall area.

2. Area required per sheet

Area required per brick = (Brick width + Joint thickness] × (Brick height + Joint thickness]

The actual area occupied by a single brick is calculated by adding the joint thickness to the brick dimensions.

3. Calculation of final brick quantity (markup reflected]

Result = (Effective construction area / Area required per sheet] × (1 + Markup rate]

The actual area occupied by a single brick is calculated by adding the joint thickness to the brick dimensions.

4. Calculation of Mortar (Ready-Mix] Requirements and Number of Bags

Mortar Weight = Effective Construction Area × Mortar Coefficient by Stacking Level × (1 + Markup Rate] / Number of Bags = Weight / Weight per Bag

After calculating the required weight based on the construction area and stacking method (0.5B, 1.0B], divide by the specifications per bag to calculate the purchase quantity.

Detailed Guide to Calculator Input Items

Each item entered by the user must be based on actual on-site measurement data to enable accurate calculation of material loss rates.

1. Wall thickness
You can select from 0.5B to 2.0B, and the thicker it is, the more the volume increases in multiples.
2. Wall width/height
Please enter the actual wall dimensions. (mm/cm/m selectable]
3. Brick dimensions
Enter the width, length, and height of the brick you plan to purchase in mm.
4. Joint spacing
Usually, 10mm is the standard, but please enter between 8 and 12mm depending on the design.
5. Surcharge rate
This is a reserve to account for damage or cutting during construction. If the site difficulty is high (e.g., many corners], please set the value higher.
6. Deduction area
Increase the precision of material loss rate calculations by entering the size of doors or windows.

Guide to Standard Specifications and Stacking Methods for Masonry Construction

These are the standard specifications most commonly used on-site and recommended values by application. Please refer to the table below when planning construction.

Stacking method	Field terminology	Wall thickness (standard]	Main uses	brick.table.th5
0.5B stacking	Stacking half sheets	90mm	Interior partitions, fences, non-load-bearing walls	3~5%
1.0B stacking	Stacking one sheet	190mm	Exterior walls, load-bearing walls, firewalls	5~7%
1.5B stacking	Stacking one and a half sheets	290mm	Heavy-load structural walls, insulated walls	7~10%
2.0B stacking	Stacking two sheets	390mm	Special Purpose Heavy Structures	10% more

note.

Based on the standard 190x90x57mm 0.5B stacking, approximately 75 bricks are required per square meter, but there is significant variation depending on the brick size.

Essential Checklist for Fail-Free Construction

Here are practical tips to prevent the 'accident' of construction being halted due to a shortage of materials on site.

Unit unification is essential
Please enter either mm or m. Mixing them may result in a difference of more than tenfold.
Check slope and level
If the first tier is not level, the wall will tilt as you go up.
Mortar viscosity control
Spraying water on materials such as old bricks before installation improves mortar adhesion.
Using a laser level
In addition to setting up a string (installing a guide frame], using a laser level to frequently check vertical and horizontal alignment is the know-how of an expert.

Frequently Asked Questions (FAQ]

Q. How much cement and sand (mortar] should I prepare?
A. Please check the mortar weight in the result. One 40kg bag can cover approximately 1.2 to 1.5㎡ when stacking 0.5B.

Q. Can this calculator be used for brick veneer or tile bricks as well?
A. Yes, it is possible. Set it to 0.5B and enter the front size to calculate the quantity per area.

Q. Is it mandatory to deduct the opening size?
A. If windows or doors account for more than 10% of the wall surface, you must deduct them to save costs.