Custom Sheds Built On-Site in 1–2 Days — Stronger Than Prefab

At Sheds Up LI, every shed is constructed on-site for a perfect fit and a stronger build than store-bought options. We use solid framing, quality materials, and proven construction methods to ensure your shed lasts for years.

Choose your size, style, and layout — whether you need simple storage or a fully customized setup.

✔ Built on-site for a perfect fit
✔ Stronger than prefab sheds
✔ Custom sizes and layouts
✔ Installed in as little as 1–2 days
✔ Serving Nassau & Suffolk County

Perfect for storage, workshops, and backyard space.

✔ Built on-site — no prefab panels or cheap shortcuts
✔ Strong 2×6 floor system (not 2×4 like store sheds)
✔ Custom fit to your yard and property
✔ Installed in as little as 1–2 days
✔ Local Long Island builder — not a big-box company
✔ Designed to last years longer than prefab sheds

We only take on a limited number of builds each week to maintain quality.

Skip the prefab sheds. Get a custom-built shed that lasts.

We serve Nassau & Western Suffolk County with fast, on-site installations.

Call Now (516-234-0062)

Every shed is built on-site for a perfect fit — no delivery damage, no shortcuts.