Diamond Pleating Technique for Marine Vinyl Upholstery

On That Custom Show, we do upholstery the right way—no shortcuts, no gimmicks, just solid technique. In this episode, I’m making diamond pleats in cognac marine-grade vinyl for a large flybridge boat, walking through the exact process I use in the shop. Diamond pleats are a classic upholstery style for a reason. They’ve been used for decades in hot rods, boats, and high-end interiors because they look right and last when done correctly. Here, I cover layout, spacing, stitch order, and how to handle thicker marine vinyl so your diamonds stay straight, tight, and professional. This video is built for upholstery pros, boat restorers, and serious DIY builders who want traditional craftsmanship with modern materials. If you’re upgrading flybridge seating, restoring a boat interior, or learning marine upholstery from real-world shop experience, this is for you. That Custom Show focuses on: • Custom auto & marine upholstery • Boat restoration and flybridge builds • Traditional techniques that still work today #ThatCustomShow #MarineUpholstery #DiamondPleats #BoatRestoration #Flybridge