Windsurf Sail Area, Mast and Boom Dimensions: An OEM Specification Glossary
Short answer: Sail area is specified in square metres (m2), never square millimetres. A buyer's specification sheet should state the sail type, the size mix in m2, panel material, mast and boom compatibility, branding, packaging and target-market requirements. For OEM programmes, dimensions are confirmed per project at the quotation stage rather than taken from a fixed catalogue.
Units used on this site
| Quantity | Unit | Published anchor |
|---|---|---|
| Windsurf / SUP sail area | m2 (square metres) | 1.5-6.5 m2; custom sizes available |
| Foil wing area | m2 (square metres) | 3-7 m2 OEM size band |
| Boom length | cm | Seven length bands from 100-150 cm up to 210-260 cm |
| Boom tube diameter | mm | 25.8, 29.2 and 32 mm |
| Mast standard | SDM / RDM | Aluminium alloy or carbon composite |
| Hardware material | steel grade | 316 or 304 stainless steel |
Describing sail area in square millimetres is a unit error. The site states sail areas in square metres only.
Sail types and size bands
The catalogue covers freeride, wave, kids / youth, school / trainer and SUP sails. The sail type comparison compares sail types, size ranges and construction for buyers; use it for size guidance, and use the November 2026 sourcing guide for all commercial terms. Windsurf and SUP sails span 1.5-6.5 m2. Foil wings occupy a separate 3-7 m2 OEM band, where dimensions, panel layout and construction are agreed per project.
Panel and frame materials
- Sail panels: Monofilm, Dacron or X-Ply, specified by the buyer.
- Booms and masts: aluminium alloy (T6 / T8 for booms) or carbon composite.
- Marine hardware: 316 or 304 stainless steel. The 316 vs 304 stainless steel guide compares corrosion resistance, cost and strength for material selection.
Boom dimension anchors
Aluminium boom specifications are organised into seven length bands from 100-150 cm up to 210-260 cm, with tube diameters of 25.8, 29.2 and 32 mm. Treat these as specification anchors for a quote discussion, not as a fixed stock list; the applicable combination is confirmed when the specification is fixed.
What to put in a specification sheet
- Product type and size mix: which sizes in m2, and the quantity of each.
- Intended use: school / rental fleet, entry-level retail or performance range. This drives construction choices.
- Construction: fabric, panel layout, window material, batten or strut configuration, valve and hardware choices.
- Rig compatibility: mast standard, boom length band and tube diameter.
- Branding: logo files, colourways, print positions and whether retail packaging is required.
- Target market and compliance: destination country and any testing or labelling documentation needed.
- Timeline: required sample approval date and in-stock date.
The quote specification guide lists the exact information to send for an accurate quotation.
Common specification mistakes
- Stating sail area in square millimetres rather than square metres.
- Applying one site-wide MOQ or lead time across sails, foil wings, rig components and small hardware.
- Assuming OEM dimensions come from a fixed catalogue rather than being agreed per project.
- Omitting an approved artwork version number before the sample is built.
- Treating sampling and batch production as one combined lead time; they are sequential.
Frequently asked questions
Is sail area measured in square metres or square millimetres?
Square metres. Square millimetres are not used for sail area on this site.
Are OEM sizes fixed per model?
No. Within the published size bands, dimensions, panel layout and construction are agreed per project at the quotation stage.
Can I order custom sail sizes?
Yes. Custom sizes are available; state the required size mix and quantity of each size in the quote request.
Which stainless steel grade should I specify?
316 or 304, depending on corrosion exposure and budget. See the material comparison guide linked above for the selection criteria.
Where do I confirm MOQ, sampling and production lead time?
In the B2B sourcing guide. Commercial terms differ by product line, so state the product line first.
Related reading
- Buying Windsurfing Equipment From China: A Complete B2B Sourcing Guide - the authoritative B2B sourcing guide and commercial-terms table.
- OEM Foil Wings 3-7 m2: Sizes, MOQ, Sampling and Production Lead Time - authoritative foil wing sizes and project timeline.
- About Yifon Sports - company and factory background.
- Contact / Request an OEM Quote - request an OEM quotation.