Leboncoin dominates French classifieds — from furniture and electronics to vehicles and real estate — with over 28 million monthly visitors and 800,000+ new listings daily. But the platform's photo display is basic: a horizontal scroll gallery with small thumbnails, and the first 2–3 images determine whether a buyer clicks 'voir le détail' (view details) or scrolls past. In this high-volume, low-barrier marketplace, a professional product grid positioned as your second image can be the difference between selling in 2 days or 2 months. The optimal Leboncoin grid strategies by category: for furniture and home goods, a 2×2 grid showing front view, side angle, any damage or wear marks, and dimensions with a measuring tape visible for scale. Leboncoin buyers want to know 'Will this fit in my apartment?' — showing dimensions in the grid answers this before they message you. For electronics, a 1×3 grid showing the device powered on (proves it works), ports and connections, and any accessories included. 'Fonctionnel ?' (Does it work?) is the #1 Leboncoin buyer question — a powered-on device in the grid eliminates doubt. For vehicles, a 2×3 grid showing exterior front, exterior rear, interior dashboard, odometer reading, engine bay, and any body damage. Leboncoin's vehicle section is the most competitive — transparency in the grid builds trust and speeds up the in-person visit decision. For clothing and fashion, a 2×2 grid showing front, back, brand label, and fabric composition tag — the French second-hand market values brand authenticity verification. Leboncoin-specific optimization: export at 1600×1600px square. Leboncoin compresses images moderately, and 1600px provides sufficient detail without triggering heavy compression. Avoid text overlays in the grid itself — Leboncoin's watermark and price overlay may clash with added text. Use 6px white cell spacing for a clean gallery aesthetic. MergeFrame's local processing is essential: pre-sale photos of items still in your home should never be uploaded to a third-party server. For French users, this page optimizes for both 'combiner photos leboncoin' and 'photo annonce leboncoin' search queries.