Building Crack Monitoring Malaysia Crack Width Meter & Structural Movement Monitoring Equipment
Published: 28 August 2026 Building Crack Monitoring Malaysia – Crack Width Meter & Structural Movement Monitoring Equipment QUICK ANSWER When a new crack appears on a building, concrete wall, column, beam or retaining structure, measuring it once is only the beginning. The more important question is: “Is the crack changing over time?” Depending on the investigation, suitable equipment may include: Crack Width Measurement → Crack Width Meter / Crack Gauge Crack Change Over Time → Crack Monitoring Equipment Building Movement → Total Station + Monitoring Prism Building Settlement → Auto Level + Levelling Staff Concrete Condition → Concrete & Structural NDT Equipment MTM Precision supplies Building Crack Measurement, Structural Monitoring and Concrete NDT Equipment in Malaysia for engineers, building inspectors, consultants, contractors and surveyors. A CRACK APPEARED – WHAT SHOULD YOU MEASURE? A visible crack does not automatically tell you why it occurred. Cracking can be associated with many different conditions, including: Concrete Shrinkage Building Settlement Thermal Movement Construction Activity Nearby Excavation Ground Movement Structural Loading Ageing or Deterioration Vibration Seismic or Earthquake-Related Ground Movement Therefore, the first step is not to guess the cause. The first step is to obtain useful measurements. 1. CRACK WIDTH METER A Crack Width Meter is used to measure the width of a visible crack. Typical applications include: Concrete Walls Columns Beams Floor Slabs Retaining Walls Bridges Tunnels Buildings Civil Structures Depending on the instrument, measurements may be obtained using optical magnification or digital imaging. The required measurement range and resolution should be considered before selecting an instrument. 2. WHY ONE CRACK MEASUREMENT IS NOT ALWAYS ENOUGH Suppose a crack measures a certain width today. That tells you its width today. It does not tell you whether it was smaller last month or whether it will change next month. For monitoring applications, repeated measurements are more useful: Baseline Measurement ↓ Record Date & Location ↓ Repeat Measurement ↓ Compare Results ↓ Establish Trend The key information becomes: Stable? or Changing? 3. CRACK MONITORING EQUIPMENT Where repeated observations are required, a Crack Monitor can help provide a defined monitoring location. The same crack can then be checked according to the monitoring schedule. Typical applications include: Buildings Near Excavation Existing Buildings Near Construction Retaining Walls Concrete Structures Bridge Structures Condition Surveys Long-Term Building Monitoring Photographs can also support documentation, but photographs alone should not replace appropriate measurement where quantitative crack change is required. 4. CRACK WIDTH VS BUILDING MOVEMENT This distinction is very important. A Crack Width Meter tells you about the crack. It does not automatically tell you whether the whole building has moved. If structural displacement is also suspected: Total Station + Permanent Monitoring Prism may be used to repeatedly measure selected points on the structure. Therefore: Crack Width Meter → Is the crack changing? Total Station + Monitoring Prism → Is the building monitoring point moving? These are different measurements. 5. CRACKS CAUSED BY SETTLEMENT? A crack may sometimes appear together with concerns about settlement. If elevation changes need to be investigated, suitable survey levelling may be considered. Typical equipment includes: Auto Level + Levelling Staff + Stable Benchmark + Settlement Monitoring Point The monitoring process is: Baseline Elevation ↓ Repeat Measurement ↓ Compare Elevation ↓ Identify Settlement Trend Combining crack and settlement measurements can provide more useful information than measuring the crack alone. 6. BUILDING CRACKS NEAR CONSTRUCTION OR EXCAVATION Buildings adjacent to major construction works are an important monitoring application. Examples include: Deep Excavation Basement Construction Piling Works Foundation Works Tunnelling Road Construction MRT / LRT Projects Adjacent Redevelopment Where required, a monitoring programme may establish conditions before critical works begin. For example: Pre-Construction Crack Record ↓ Baseline Measurement ↓ Construction Begins ↓ Repeat Measurements ↓ Compare Results This creates documented measurement history. 7. BUILDING CRACKS AFTER AN EARTHQUAKE After a felt earthquake or unusual ground movement, occupants may notice cracks and wonder whether they are new. The presence of a crack alone does not prove that an earthquake caused it. A professional investigation may consider: Is the crack new or pre-existing? Where is the crack located? What is the crack width? Is the width changing? Has the building moved? Has settlement occurred? Are there other signs of deformation? Different instruments answer different questions. Crack Width → Crack Width Meter Crack Change → Crack Monitor Structural Movement → Total Station + Monitoring Prism Settlement → Levelling Equipment Seismic Ground Motion → Purpose-Designed Seismic Instrumentation 8. CRACK MONITORING + CONCRETE NDT Sometimes measuring a crack is only one part of a broader concrete investigation. Depending on the engineering requirement, additional equipment may include: Concrete Rebound Hammer Rebar Scanner Concrete Cover Meter Ultrasonic Concrete Testing Equipment Anchor Pull-Out Tester Other Structural NDT Equipment Each instrument measures a different parameter. A Rebound Hammer, for example, should not be treated as an instrument that determines whether a building is structurally safe. WHICH EQUIPMENT SHOULD YOU BUY? I Only Need to Measure Crack Width Choose: Crack Width Gauge / Crack Width Meter I Need to Know Whether the Crack Is Changing Consider: Crack Monitoring Equipment I Think the Whole Building Is Moving Consider: Total Station + Monitoring Prism I Need to Monitor Settlement Consider: Auto Level + Levelling Staff I Need to Investigate Concrete Condition Consider: Appropriate Concrete & Structural NDT Equipment FAQ What Instrument Measures Cracks in Concrete? Depending on the required accuracy and application, a Crack Width Gauge, Crack Microscope or Digital Crack Width Meter may be used. How Can I Tell Whether a Building Crack Is Getting Bigger? Establish a repeatable measurement location and compare crack measurements over time using an appropriate monitoring method. Can a Crack Width Meter Tell Me Whether a Building Is Safe? No. A crack width measurement provides one piece of information. Structural safety requires appropriate professional assessment. Can I Monitor Building Movement at the Same Time? Yes. Total Station + Monitoring Prism can be considered for suitable survey-based structural movement monitoring, while crack measurement addresses the crack itself. Where Can I Buy Building Crack Monitoring Equipment in Malaysia? MTM Precision supplies Crack Measurement, Survey Monitoring and Structural NDT Equipment in Malaysia. Tell us what you are monitoring, the approximate crack width, whether repeated monitoring is required and whether structural movement also needs to be measured. WHY BUY FROM MTM PRECISION? MTM Precision covers multiple equipment categories relevant to building and structural monitoring: Crack Measurement Equipment Total Stations Monitoring Prisms Mini Prisms Auto Levels & Levelling Staffs Concrete Rebound Hammers Structural NDT Equipment Calibration & Repair Support This means a customer asking about a “building crack” does not have to assume that one instrument will answer every question. Start with: “What exactly do we need to measure?” Then select the appropriate measurement equipment. IMPORTANT TECHNICAL & SAFETY NOTE Crack width alone cannot determine whether a building or structure is safe or unsafe. If there is significant new cracking, visible deformation, falling material, unusual movement or another structural safety concern, the structure should be assessed by appropriately qualified professionals. CONTACT MTM PRECISION MTM Precision Sdn Bhd No. 29-1 & 29-2, Jalan Bandar 18, Pusat Bandar Puchong, 47160 Puchong, Selangor, Malaysia Website: www.mtmpre.com.my WhatsApp: +6016-660 7346 Email: mtmpre@yahoo.com
28 Aug 2026
