How Many Concrete Cube Moulds Should a Contractor Keep on Site? Malaysia
How Many Concrete Cube Moulds Should a Contractor Keep on Site? Malaysia
Introduction
A common purchasing question is:
“How many Concrete Cube Moulds should I buy for my project?”
Buying too many means unnecessary stock.
But buying too few can be a bigger problem because moulds may still be occupied by specimens when the next concrete pour begins.
There is no single quantity suitable for every construction project. The correct number depends on the sampling frequency, number of specimens required, casting schedule, demoulding cycle, project workload, and spare capacity.
At MTM Precision Sdn. Bhd., we supply Plastic and Cast Iron Concrete Cube Moulds for contractors, ready-mix concrete companies, precast manufacturers, and testing laboratories throughout Malaysia.
Why Is Cube Mould Quantity Important?
Cube Moulds operate in a cycle:
Prepare Mould → Cast Specimen → Keep Specimen in Mould → Demould → Clean → Inspect → Reuse
During part of this cycle, the mould is unavailable for another specimen.
If another concrete pour occurs before enough moulds return to service, the site can experience a mould shortage.
Don't Calculate Based Only on One Concrete Pour
This is a common purchasing mistake.
For example, a contractor may calculate:
“I need 6 specimens today, so I need 6 moulds.”
But what happens if another sampling requirement occurs before those moulds are available again?
The real calculation should consider the complete testing schedule—not only one pour.
Start with Daily Sampling Requirements
First determine:
How many concrete samples may be taken per day?
How many specimens are required for each sample?
Can multiple concrete pours occur on the same day?
Are different concrete grades being poured?
Are several locations active simultaneously?
These questions determine the basic mould demand.
Example 1 – Small Construction Project
Suppose a smaller project normally prepares:
6 cube specimens per sampling event
and only one sampling event occurs during the relevant mould cycle.
The minimum requirement may appear to be 6 moulds.
However, keeping exactly 6 provides no spare capacity.
If one mould is:
Cracked
Damaged
Lost
Dirty
Under inspection
the site immediately has a shortage.
For this reason, some additional spare capacity should be considered.
Example 2 – Multiple Concrete Pours
Suppose a project has:
Pour A → 6 specimens
Pour B → 6 specimens
Pour C → 6 specimens
If these sampling events occur before the earlier moulds are available for reuse, the site may require at least:
6 + 6 + 6 = 18 mould positions
before considering spare stock.
This is why project schedule matters.
Example 3 – Busy High-Rise Project
A high-rise project may have concrete activities occurring frequently.
Different pours can include:
Columns
Slabs
Walls
Beams
Structural elements
If several concrete grades or sampling events occur within a short period, mould demand can increase quickly.
In this situation, purchasing only a small quantity may create repeated shortages.
Consider the Demoulding Cycle
A Cube Mould cannot be reused immediately after fresh concrete is placed.
The specimen remains in the mould for the period required by the applicable testing procedure before demoulding.
Therefore, the mould remains occupied during this time.
Your stock calculation needs to account for this unavailable period.
A Simple Quantity Planning Formula
A practical planning concept is:
Required Active Moulds + Spare Moulds = Recommended Site Stock
Where:
Required Active Moulds depend on the maximum number of specimens that may occupy moulds simultaneously.
Spare Moulds provide protection against damage, cleaning delays, unexpected sampling, or increased workload.
This is more useful than simply asking another contractor how many moulds they own.
How Much Spare Capacity Should You Keep?
There is no universal percentage appropriate for every project.
Spare quantity depends on:
Project size
Testing frequency
Mould damage rate
Distance from supplier
Urgency of replacement
Site conditions
The important point is to keep some practical reserve, particularly on projects where concrete work cannot wait.
Why Plastic Cube Moulds Are Convenient as Spare Stock
Plastic Concrete Cube Moulds are useful for spare inventory because they are:
Lightweight
Compact
Easy to store
Corrosion resistant
Easy to transport
A contractor can keep additional units without requiring a large dedicated storage area.
Should Every Site Keep Its Own Cube Moulds?
For contractors operating multiple projects, this can be worth considering.
Moving moulds continuously between sites creates several risks:
Moulds may not return on time
Specifications may differ
Moulds can be lost
Transportation causes additional handling
One project may suddenly need more moulds
Assigning an appropriate quantity to each active site can simplify operations.
Label Cube Moulds by Project
If moulds move between projects, consider simple identification.
For example:
PROJECT A – PCM-001 to PCM-020
PROJECT B – PCM-021 to PCM-040
This makes it easier to know where company equipment is located.
Different Cube Sizes Need Separate Stock Planning
If your company uses both:
100 × 100 × 100 mm
and
150 × 150 × 150 mm
do not simply count all Cube Moulds together.
A site requiring 150mm specimens cannot solve a shortage simply because another store contains unused 100mm moulds.
Track each specification separately.
Plastic and Cast Iron Stock Should Also Be Identified
A company may use:
Plastic Cube Moulds → Site
Cast Iron Cube Moulds → Laboratory
Keep separate inventory records so purchasing personnel know exactly what is available.
When Should You Order More Cube Moulds?
Do not wait until stock reaches zero.
Consider reordering when:
A new project is starting
Concrete work is increasing
Several moulds have been damaged
Spare stock is running low
More sampling is expected
Existing moulds are approaching replacement
Advance planning reduces urgent purchases.
New Project Starting? Check Mould Quantity Early
Cube Mould requirements should ideally be considered before major concrete works begin.
A simple pre-project check can include:
Required Size?
Required Quantity?
Plastic or Cast Iron?
Existing Good Stock?
Spare Quantity?
Slump Cone Available?
This allows the site team to prepare before the first major pour.
Don't Forget Slump Cone Equipment
A contractor preparing Cube Moulds is often also carrying out fresh concrete slump testing.
Before concrete work starts, check whether the site has:
Slump Cone
Tamping Rod
Base Plate
Measuring Accessories
Required Cube Moulds
These products naturally belong together in a compact concrete site-testing setup.
One Concrete Testing Set per Site Team
For companies operating several projects, a practical approach may be to assign each team its own basic equipment set.
For example:
Site A
Slump Cone Set
Plastic Cube Moulds
Measuring Accessories
Site B
Slump Cone Set
Plastic Cube Moulds
Measuring Accessories
This reduces the need to constantly move the same equipment between projects.
Why This Can Reduce Lost Equipment
When products are continuously borrowed between sites, nobody is completely sure where they are.
Dedicated site equipment can make responsibility clearer.
This is especially useful for relatively compact products such as Cube Moulds and Slump Cone sets.
Ready-Mix Companies Need Different Quantity Planning
Ready-mix concrete companies may require significantly more Cube Moulds than an individual contractor.
Their moulds may circulate between:
Plant laboratory
Customer sites
Sampling teams
Storage
Cleaning areas
For these users, mould inventory should be managed as a regular operational stock item.
Create Minimum Stock Levels
High-volume customers can establish a minimum stock level.
For example:
Normal Operational Requirement: 50 moulds
Minimum Spare Level: 10 moulds
When spare stock falls below the internal minimum, purchasing can reorder.
The exact numbers should be determined by the customer's actual operation.
Cube Moulds Can Be Managed Like Consumable Working Equipment
Although Cube Moulds are reusable, they are repeatedly:
Handled
Transported
Cleaned
Demoulded
Exposed to concrete
Some will eventually require replacement.
For frequent users, it makes sense to treat them as replenishable working equipment rather than assuming one purchase will last indefinitely.
Bulk Purchase vs Small Repeat Orders
Both approaches can work.
Bulk Purchase
Useful when:
Starting a new project
Opening a new laboratory
Equipping multiple sites
Standardising company stock
Repeat Orders
Useful when:
Replacing damaged units
Increasing capacity gradually
Maintaining minimum stock
A good purchasing system may use both.
Keep Your Specification on Record
Repeat orders become easier when the purchasing department records:
Product: Plastic / Cast Iron Concrete Cube Mould
Size: 100mm / 150mm
Preferred Model: Recorded
Usual Order Quantity: Recorded
Application: Site / Laboratory
When stock becomes low, the same product can be reordered quickly.
Request a Bulk Cube Mould Quotation
For a quotation, customers can send:
Cube Mould Type: Plastic / Cast Iron
Size: 100mm / 150mm / Required Size
Quantity: Required Units
Number of Projects: If relevant
Application: Contractor / Ready-Mix / Precast / Laboratory
Required Specification: If applicable
For multiple projects, customers can send the complete quantity list together.
Why Choose MTM Precision?
MTM Precision supplies Plastic and Cast Iron Concrete Cube Moulds in Malaysia for:
Building Contractors
Civil Engineering Contractors
Ready-Mix Concrete Companies
Precast Manufacturers
Material Testing Laboratories
Universities
QA/QC Teams
We can support first-time orders, project quantities, additional moulds, and repeat replacement requirements.
We also supply Slump Cone equipment, allowing contractors to source key compact concrete site-testing products together.
Contact MTM Precision
MTM Precision Sdn. Bhd.
Showroom & Service Centre
No. 29-1 & 29-2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor, Malaysia
Website: www.mtmpre.com.my
Email: mtmpre@yahoo.com
WhatsApp: +6016-660 7346
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14 Aug 2026
