How Do Restoration Companies Measure Moisture in Wood?

Pin-type meters are the classic tool for checking wood moisture. The pros push two metal pins into the wood, then the meter sends a small electrical current between them. The reading shows the moisture content as a percentage, which tells you how saturated the wood has become.

These meters give precise readings at specific depths, so the pros can test the surface and deeper layers separately. The downside is that the pins leave tiny holes, which are usually unnoticeable after the wood dries. For finished wood or flooring, the pros may prefer a pinless meter to avoid any marks.

• Pin depth affects the reading
• Readings are shown as a percentage
• Good for checking deep saturation
• Leaves small pin holes
• Right for bare or unfinished wood

Moisture content in wood is expressed as a percentage of the wood's dry weight. Normal, dry wood in a home usually sits between 6 and 12 percent, depending on the climate. If a reading comes back above 16 or 17 percent, that wood is considered wet and needs attention.

In a humid place like Doral, the baseline can be a bit higher, so the pros compare readings to the surrounding dry wood rather than a fixed number. That comparison helps them tell whether the moisture is from a leak or simply from the air. The pros use this data to decide where to set up drying equipment.

Moisture meters are useful, but they have limits. They can only measure the wood they touch, so the pros must scan many spots to find all the wet areas. Also, metal fasteners or wires inside the wood can skew the readings, so the pros interpret the numbers with caution.

Meters cannot tell you whether the water is clean or contaminated, and they cannot see behind walls or under floors without access. That is why the pros combine meter readings with visual inspections and other tools like thermal imaging. If you suspect hidden water, a professional moisture inspection is the way to go.