How to Read Dutch Weave Mesh Specifications
A Dutch weave specification should state the weave type, warp × weft wire counts, warp × weft wire diameters, material and filtration-rating basis. A notation such as 24 × 110 identifies two directional counts, but it is not a complete purchasing specification.
Direct Answer: Read the Specification in Five Parts
1. Weave type
Plain Dutch, twill Dutch or reverse Dutch.
2. Warp × weft count
Number of wires in each stated direction and unit.
3. Warp × weft wire
Diameter of each wire system in a stated unit.
4. Material
Required alloy or material standard.
5. Performance basis
Filtration rating, pore or permeability value with method.
Supply details
Width, length, tolerances, quantity and edge/handling needs.
How to Interpret Common Dutch Weave Notation
The examples explain notation only. They are not a universal stock list and do not replace the exact wire diameters and agreed technical data.
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| Notation element | What it means | What it does not prove |
|---|---|---|
| 24 × 110 | Two directional wire counts | Wire diameters, micron rating or permeability |
| 165 × 1400 | A denser warp-by-weft construction identifier | A universal pore size without construction data |
| 325 × 2300 | Warp and weft counts for a fine Dutch weave construction | Complete product equivalence between suppliers |
| 400 × 2800 | Warp and weft counts for another dense construction | Rating method, tolerance or delivered roll data |
Warp and Weft Must Stay in the Correct Order
The warp direction normally follows the length of the roll; the weft wires cross it. Always confirm the supplier’s notation order and unit instead of assuming that the larger count appears first. If the two wire diameters differ, write them in the same directional order as the counts.
A clear format is: weave type — warp count × weft count — warp wire × weft wire — material.
Why Mesh Count Alone Cannot Give the Micron Rating
Dutch weave does not present a simple square opening. Its dense warp/weft geometry creates a tortuous, indirect path, so the square-mesh formula cannot convert the two counts into an accurate micron rating. Filtration data should name the efficiency or test method behind the value.
Use the Dutch weave micron-rating guide for rating terminology. The mesh-to-micron calculator applies to square woven openings, not Dutch weave.
Plain, Twill and Reverse Dutch Weave Specifications
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| Weave family | Specification emphasis | Do not omit |
|---|---|---|
| Plain Dutch weave | Plain interlacing with different warp/weft systems | Both counts, both wires and rating basis |
| Twill Dutch weave | Twill interlacing in a dense filter construction | The word “twill” plus complete construction |
| Reverse Dutch weave | Reversed relationship between coarse and fine wire systems | Orientation, roll direction and performance basis |
Review the dedicated plain Dutch weave, twill Dutch weave and reverse Dutch weave pages for construction-specific purchasing details.
Add Rating, Permeability and Acceptance Data
Two meshes with similar count notation should not be treated as equivalent unless wire diameters, weave, material and relevant performance data also match. Where performance matters, state the filtration-rating method, permitted tolerance and permeability or flow-test conditions.
Do not describe a Dutch weave product using only a marketing micron number. Record the source and method of the value in the approved specification.
Visual Examples of Dense Dutch Weave Structures
These real Maidong mesh images show roll and surface differences. A photograph helps identify construction and handling condition, but it cannot replace measured wire and performance data.
Dense mesh rolls
Roll surface comparison
Wire structure detail
Dutch Weave Mesh RFQ Format
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| RFQ line | Recommended entry |
|---|---|
| Construction | Weave type + warp count × weft count |
| Wire data | Warp diameter × weft diameter with unit |
| Material | Required grade/standard and any documentation |
| Filtration data | Rating/pore value, efficiency and named test basis |
| Roll supply | Width, length, edges, tolerances and quantity |
| Operating context | Medium, temperature, pressure, flow and cleaning |
For commercial product options, use the main Dutch weave mesh product page. Specific construction references include 325 × 2300 and 400 × 2800 Dutch weave mesh.
Dutch Weave Specification FAQ
They identify different wire counts in the warp and weft directions. They do not by themselves define both wire diameters, pore size, permeability or filtration performance.
Dutch weave uses different wire systems to create a dense indirect pore path. The two directions may have different wire counts and diameters.
No. The square-weave aperture formula does not describe the indirect pore geometry of Dutch weave. Use construction-specific rating or pore data with its stated test method.
No. They identify warp-by-weft counts, but procurement should also state both wire diameters, weave type, material, width, length, rating basis and acceptance requirements.
All require warp and weft information, but their wire arrangement and orientation differ. Reverse Dutch weave also reverses the usual relationship between the coarse and fine wire systems, so the weave type must be named explicitly.
Include weave type, warp × weft count, warp × weft wire diameters, material, filtration rating and test basis, permeability requirement if applicable, roll dimensions, tolerances, quantity and intended process conditions.
Need Help Checking a Dutch Weave Specification?
Send the weave name, warp/weft counts, both wire diameters, material, rating basis, roll dimensions, process conditions and quantity.