How to Check Moisture in Plywood Before Production Malaysia
How to Check Moisture in Plywood Before Production Malaysia
Plywood may look perfectly normal when it arrives at a factory, but are all sheets in the batch in a similar moisture condition?
For furniture factories, carpentry workshops, cabinet makers and wood-product manufacturers, moisture inspection can be added to incoming and pre-production quality control.
The TASI TA661B Digital Moisture Meter supports plywood and other wood-related moisture applications, making it useful for portable spot checks before material enters production.
Why Check Plywood Moisture?
Plywood is used extensively for:
Furniture
Cabinets
Interior renovation
Built-in wardrobes
Shelving
Partitions
Wood products
Carpentry
Its condition before production can affect downstream manufacturing and finished-product quality.
Moisture inspection can help identify unusual sheets or inconsistent batches before additional labour and materials are invested.
Do Not Judge Plywood Only by Appearance
Two plywood sheets may look almost identical but may not necessarily be in the same condition.
Visual inspection should therefore be combined with other QC checks where appropriate.
A basic incoming inspection can include:
Visual Condition + Dimensions + Surface Quality + Moisture Measurement
The exact QC requirements depend on the factory and product.
Step 1: Check Plywood When It Arrives
Incoming inspection is one of the best opportunities to identify differences between batches.
Instead of testing only one sheet, sample material from different locations.
For example:
Top of Stack
Middle of Stack
Bottom of Stack
If multiple pallets arrive, sample each pallet according to the company's QC procedure.
Step 2: Take More Than One Reading Per Sheet
Do not rely on one point.
A plywood sheet can be checked at several locations, such as:
Left → Centre → Right
For larger sheets, additional measurement points can be used.
The objective is to understand whether the material appears reasonably consistent rather than searching for one convenient reading.
Step 3: Use the Correct Material Setting
The TASI TA661B provides multiple material categories.
Select the appropriate mode for the material being inspected.
Do not use a random setting simply because it produces a numerical result.
Correct material selection is an important part of consistent measurement.
Step 4: Use Consistent Probe Contact
The TA661B is a pin-type moisture meter.
Measurement technique matters.
When comparing different sheets, try to keep the method consistent:
Similar probe contact
Similar measurement locations
Correct material category
Similar measurement procedure
If one operator pushes the probes differently from another, results may become less comparable.
Step 5: Compare Similar Plywood
Avoid comparing unrelated materials as though their readings mean exactly the same thing.
For example:
Plywood Batch A vs Similar Plywood Batch B
is generally a more useful QC comparison than:
Plywood vs Brick Wall
Different materials should be interpreted according to their relevant measurement categories and requirements.
Check Different Suppliers
If your factory purchases plywood from several suppliers, moisture measurement can become one recorded incoming-QC parameter.
For example:
SupplierBatchSampleMoisture ReadingTemperatureRHSupplier AA01Sheet 1ReadingReadingReadingSupplier AA01Sheet 2ReadingReadingReadingSupplier BB01Sheet 1ReadingReadingReading
Over time, these records may help the QC team identify consistency patterns.
Moisture readings should be considered together with other supplier-quality criteria.
What If One Sheet Gives a Different Reading?
Do not immediately reject an entire shipment.
First verify the result.
A practical sequence is:
Repeat Measurement → Check Another Point → Check More Sheets → Confirm Material Setting → Compare Batch
If several samples show a consistent difference, the QC team can decide whether further evaluation is required.
Check Plywood After Warehouse Storage
Incoming material may not enter production immediately.
Plywood can remain in storage for days or weeks.
During storage, conditions may be influenced by:
Warehouse humidity
Ventilation
Rainy weather
External walls
Floor conditions
Water leakage
Air-conditioning
For longer storage periods, consider checking the material again before production.
Incoming QC Is Not the Same as Pre-Production QC
These are two different checkpoints.
Incoming QC
Answers:
“What condition was the material in when we received it?”
Pre-Production QC
Answers:
“What condition is the material in now?”
A useful workflow can therefore be:
Delivery → Incoming Moisture Check → Storage → Pre-Production Moisture Check → Manufacturing
Why Record Temperature and RH?
The TASI TA661B also provides ambient temperature and relative humidity readings.
These measurements provide environmental context.
For example:
Plywood Moisture = Material Measurement
Warehouse RH = Air Measurement
They are not the same percentage.
Recording both can help QC teams understand the conditions present during inspection.
Can High Warehouse RH Affect Plywood?
Wood-based materials interact with their surrounding environment over time.
Therefore, storage conditions can be relevant.
However, do not interpret a high RH reading as meaning the plywood has the same percentage of moisture.
If continuous warehouse monitoring is important, consider using a dedicated temperature and humidity data logger alongside periodic material moisture checks.
Before Cabinet Production
Cabinet manufacturers may use plywood for:
Carcass construction
Shelving
Doors
Internal panels
Built-in furniture
Moisture checking before cutting and assembly can become part of the production QC process.
This is particularly useful when material comes from different deliveries or has been stored under different conditions.
Before Furniture Production
Furniture manufacturers can use a similar approach.
A simple workflow is:
Incoming Plywood
↓
Sampling
↓
Moisture Measurement
↓
Record Batch
↓
Warehouse Storage
↓
Pre-Production Recheck
↓
Cutting and Manufacturing
This moves moisture inspection earlier in the production process.
What Moisture Percentage Is Acceptable for Plywood?
There is no single percentage that should automatically be applied to every plywood product and every factory.
Acceptance criteria may depend on:
Plywood specification
Product requirements
Supplier specification
Manufacturing process
Customer requirements
Destination environment
Internal QC standards
The factory should establish appropriate criteria for its application.
The TA661B provides measurement data to support that QC process.
Can TA661B Replace Laboratory Testing?
Not necessarily.
The TA661B is useful for portable field and production spot checks.
If a customer specification, standard or laboratory procedure requires a particular test method, that method should be followed.
A handheld moisture meter is especially valuable for fast comparative inspection and routine QC.
TASI TA661B for Plywood QC Malaysia
The TASI TA661B Digital Moisture Meter can support applications such as:
Plywood incoming inspection
Timber QC
Furniture manufacturing
Cabinet production
Carpentry
Warehouse checks
Pre-production inspection
Wood-material troubleshooting
Because the meter also supports selected building materials, it can be useful for renovation contractors who work with both plywood and wall materials.
Plywood Moisture Meter Malaysia
Moisture inspection does not need to be complicated.
For many factories, the biggest improvement is simply creating a repeatable process:
Sample → Measure → Record → Compare → Recheck
Instead of discovering a material problem after cutting or assembly, the TASI TA661B Digital Moisture Meter allows plywood moisture checks to become part of routine incoming and production QC.
For quotation, product availability or application enquiries in Malaysia, contact:
MTM Precision Sdn Bhd
Showroom & Service Centre
No 29-1 & 2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor.
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my
26 Sep 2026
