PVC bunk spacing for the Outpost 100: 6.5" on center
PVC bunks work great for the Outpost 100 — set them about 6.5" apart on center for optimal balance and to clear the scupper area.
PVC bunks work great for the Outpost 100. Set them about 6.5" apart on center for optimal balance.
Why 6.5" works
The Outpost 100's hull has parallel load-bearing channels running down the bottom. At 6.5" on center, the PVC bars sit cleanly inside those channels and avoid the scupper area entirely, so the boat rides flat and the drainage holes never carry weight.
This is the spacing we've validated against the as-built hull. Wider than that and the boat starts riding on the scupper edges; tighter and you lose lateral stability on the trailer.
What "on center" means
Measure from the centerline of one PVC bar to the centerline of the other — not edge to edge. If you're running 1.5" PVC, that's about 5" of clear gap between the inside edges of the two bars.
A few practical notes
- Bar diameter: 1.5" Schedule 40 PVC is the most common bunk material. Anything from 1" to 2" works, as long as you keep the on-center spacing the same.
- Length: Run the bunks long enough that the boat is supported under both seat-area and rear-tankwell zones. Don't worry about full hull coverage — the load-bearing channels do the work.
- Carpet or no carpet: Bunk carpet is optional on HDPE. The hull is forgiving, but carpet makes loading and unloading easier and quieter.
- Pull the drain plug before transport so rinse water or rain drains as you drive.
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