Layout and joinery
Mark spacing, joints, frames, curves and assembly checks.
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Woodworking spacing and marking layout
Get clear openings and marking positions for shelves, slats or a fixed-pitch row of holes.
Inputs: Span (in), Number of solid items (items), Actual width of each item (in), First hole centre from datum (in), Last allowed hole centre from datum (in), Centre-to-centre pitch (in).
Results: Clear gap at each boundary (in), Positions from the same datum (in), Hole count (holes).
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Picture frame cutting lengths
Calculate 45° frame long-point lengths and a total before kerf or stock-length planning.
Inputs: Visible opening width (in), Visible opening height (in), Moulding face width (in).
Results: Long-point cut for the opening-width pair — make two (in), Long-point cut for the opening-height pair — make two (in), Total long-point lengths (in).
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Miter angle layout
Find a saw miter setting for a symmetric joint or regular polygon from its interior angle or side count.
Inputs: Interior angle between two pieces (degrees), Equal sides in polygon (sides).
Results: Miter setting from square cut (degrees).
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Compound crown molding miter
Calculate paired miter and bevel settings for crown molding from wall and spring angles.
Inputs: Inside wall corner angle (degrees), Crown spring angle from wall (degrees).
Results: Miter setting from square cut (degrees), Bevel setting from square cut (degrees).
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Circular arch layout
Derive a circular arc radius and curve length from a measured chord and rise.
Inputs: Straight chord width (in), Rise from chord to arc (in).
Results: Circle radius (in), Circle center below chord (in), Minor arc length (in).
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Dovetail spacing layout
Set out equal tails, inner pins and half-pins at the board ends for a declared dovetail pattern.
Inputs: Board width across the joint (in), Number of tails (tails), Width of each inner pin (in), Half-pin width at each end (in), Tail slope ratio (run per rise) (ratio).
Results: Equal tail width (in), Slope angle from the board edge (degrees).
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Box joint finger layout
Mark equally spaced finger boundaries across a board using an odd count of alternating fingers and slots.
Inputs: Board width (in), Odd number of equal finger/slot sections (sections).
Results: Equal section width (in), Interior boundaries from one edge (in).
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Mortise and tenon dimensions
Calculate centered tenon shoulders and tenon length from measured stock and mortise depth.
Inputs: Actual stock thickness (in), Actual stock width (in), Tenon thickness (in), Tenon width (in), Mortise depth (in), Clearance at mortise bottom (in).
Results: Shoulder on each stock face (in), Shoulder on each stock edge (in), Tenon length to leave bottom clearance (in).
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Frame squareness diagonal check
Compare measured rectangle diagonals with the ideal diagonal and each other while squaring a frame or panel.
Inputs: Target rectangle width (in), Target rectangle height (in), Measured diagonal A (in), Measured diagonal B (in).
Results: Ideal rectangle diagonal (in), Absolute difference between measured diagonals (in).
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French cleat cut geometry
Estimate the two face widths and kerf projection for a 45-degree split through a measured board.
Inputs: Board width across the split (in), Actual board thickness (in), Measured blade kerf normal to blade (in).
Results: Kerf projected along the 45° cut (in), Short face after split (in), Long face after split (in).