What Are SeaDek and Bunk Carpet Used For on BoatCarpet.com?

Updated

SeaDek and bunk carpet solve two different problems on a boat. SeaDek is a cushioned, non-slip surface material used on deck areas where people stand, walk, or kneel — swim platforms, casting decks, gunwales, and helm pads. Bunk carpet is the fabric that covers the wooden or metal bunks on a boat trailer, so the hull slides on and off without being scratched. BoatCarpet.com lists both alongside its marine carpet and vinyl flooring, and the two are not interchangeable: one goes on the boat, the other goes on the trailer.

SeaDek: Traction and Comfort on the Boat

SeaDek is a closed-cell foam pad with a textured top surface and an adhesive backing. It is used where bare fiberglass or painted deck gets hot, slick, or hard on the knees.

Typical placement:

  • Swim platforms and transoms — the most common use, since this area is wet and stepped on constantly.
  • Casting decks and bow platforms — for anglers who stand for long periods.
  • Gunwales and coaming pads — where you lean or step over the side.
  • Helm and console pads — standing comfort at the wheel.
  • Cooler tops and step boxes — anywhere feet land.

What it does that carpet does not: it does not absorb water, it does not hold dirt the way pile fabric does, and it can be cut to a custom shape with a router or knife. The trade-off is cost and the fact that it is glued down — removing it later takes effort and usually leaves adhesive residue.

Bunk Carpet: Protecting the Hull on the Trailer

Bunk carpet is not a floor covering. It is wrapped around the trailer bunks — the padded supports the boat rests on — and its job is to let the hull slide during launch and retrieval while cushioning it against the bunk underneath.

Typical placement:

  • Trailer bunk boards — the standard use, stapled or glued over the board.
  • Boat lift bunks — same function where a lift holds the boat.
  • Any hull contact point on a trailer or dolly.

What matters here is abrasion resistance and how it behaves when wet. Carpet that sheds fibers or holds grit can act like sandpaper on a hull over time. Bunk carpet is also a wear item: it flattens, tears, and exposes staples, which is when hull scratches start.

SeaDek vs. Bunk Carpet vs. Regular Boat Carpet

SeaDek Bunk carpet Standard marine carpet (16–28 oz)
Where it goes Boat deck surfaces Trailer/lift bunks Boat interior floor
Main job Non-slip traction, cushioning Cushion and slide the hull Comfort and appearance underfoot
Water behavior Closed-cell foam, does not absorb Gets wet, must drain and dry Varies with backing; can hold water
Installation Peel-and-stick adhesive, cut to shape Wrapped and stapled/glued over bunks Glued down over deck
Wear pattern Surface texture wears, edges lift Abrades and flattens against hull Crushes and stains in traffic areas

The practical distinction: if the surface is something a person stands on, it is SeaDek or marine carpet. If the surface is something the hull rests on, it is bunk carpet.

What to Confirm Before Buying

For SeaDek:

  • Measure the actual deck area, including curves — most installations need a template, not just length × width.
  • Confirm the substrate is clean, dry, and smooth; adhesive performance depends on surface prep.
  • Check whether you want a full sheet to cut yourself or a pre-cut kit for your specific boat model.

For bunk carpet:

  • Measure bunk length, width, and thickness, and add enough to wrap around and staple underneath.
  • Count how many bunks you are recovering — trailers commonly have two to four.
  • Decide between replacing the carpet only or replacing the bunk boards at the same time; if the wood is soft or split, new carpet will not fix it.

For either:

  • BoatCarpet.com states free shipping on orders over $75, so combining a SeaDek order with bunk carpet can matter for total cost.
  • Confirm the product is listed for your intended use — deck surface and bunk covering are separate product categories on the site.

If you are choosing between carpet weights for an interior floor instead, that is a different decision from SeaDek or bunk carpet and depends on foot traffic and how often the deck gets wet.