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Frame Spacing Calculator

Calculate even frame spacing for building a boat hull.

Quick Samples
Try these common configurations to get started

24ft Plywood Skiff

Common spacing for plywood construction

35ft Cruiser

Robust spacing for an offshore boat

16ft Dinghy

Wider spacing for a lightweight build

Hull Dimensions
Enter your boat's principal dimensions

e.g., inches, mm

e.g., inches, mm

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About This Tool
The Frame Spacing Calculator is a simple but critical layout tool for boat builders. When setting up the molds or frames for a hull, it's essential that they are spaced evenly to ensure a fair and symmetrical shape. This calculator takes the total length you need to span and your desired frame spacing, and it calculates the exact, even spacing required to fit a whole number of frames. This eliminates guesswork and ensures your setup is accurate from the start.

Key Concepts:

Frame Spacing: The center-to-center distance between transverse frames.
Station Lines: The locations on the plans where the shape of the hull is defined.
Fairness: The quality of a line or surface being smooth and free of bumps or hollows.
Scantlings: The dimensions of the structural members of a boat, including frames.
Frequently Asked Questions

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