Hardware Position ToolHinge & Hardware Placement Calculator
Calculate exact hinge positions, System 32 shelf-pin hole layouts and handle placement for cabinet doors and panels. Follow Blum/Hettich/Hafele industry standards and bore right the first time.
Why this calculation matters
Hinge and handle positions decide how the door feels in use. Wrong placement forces an awkward wrist on every open, which no amount of finish quality fixes.
Hardware Position Tool
Hinge & Hardware Placement Calculator
Top hinge / first hole from top.
Bottom hinge / last hole from bottom.
Hinge cup centre / hole from edge. 35mm cup: 22mm typical.
| Position | Value | Detail |
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About Hardware Position Tool
Correct hardware placement is what separates professional cabinetry from amateur work. This tool calculates exact hinge positions for any door height, System 32 shelf-pin hole layouts, and handle placement - all following the cabinet industry standards used by Blum, Hettich and Hafele. Get the boring positions right the first time and avoid scrapped doors. It standardises cabinet handle placement height and hinge positioning so every unit in a production run drills identically.
Where Is This Used?
Standards & Formulas
Hinge spacing: top + bottom inset fixed, middle hinges evenly spacedMiddle hinge gap = (span between end hinges) / (hinges - 1)35mm hinge cup: 22mm edge inset is standardSystem 32: holes at 32mm pitch, 5mm diameterSystem 32 front row: typically 37mm from front edgeHow the calculation works
Even spacing between fixed end positions is what keeps the load shared and the door hanging straight. The 32 mm pitch exists so that shelf holes, hinge plates and drawer runners from different makers all land on the same grid.
Show the formula
Hinges: the first and last sit at their insets from top and bottom, and any intermediates are spaced evenly at (last position - first position) / (hinges - 1). Shelf holes: count = floor((door height - insets) / pitch) + 1, on the System 32 pitch.Confirm against the actual hinge or runner: cup diameter, overlay and boring inset differ between manufacturers.
References
No external standard governs this calculation — it is arithmetic from your inputs. Take product-dependent figures from the manufacturer data sheet, not from here.
Limitations of this calculation
Positions hardware to the convention selected. It does not account for specific hinge or slide manufacturer geometry, door thickness limits, overlay variation, or user reach requirements.
Do not use this for Boring programmes without confirming geometry against the actual hinge or slide.
Figures are engineering estimates from the inputs and assumptions shown. Verify against the actual material and, where the result affects structure or safety, against a qualified professional.
- End hinges at fixed insets; middle hinges evenly spaced — pitch = span ÷ (n − 1)
- 35 mm hinge cup: 22 mm edge inset; System 32: 32 mm hole pitch
Formula checked against the sources above by an automated regression test (tests/verify-phase3b.js) that derives each expected value independently of this page. Last reviewed .
How to use this tool
- Enter your material and machine details below, then press Calculate.
- Pick your hardware type from the dropdown.
- Fill in door / panel height, door / panel width, top inset, bottom inset.
- Press Calculate.
Worked example
Common mistakes to avoid
- Measuring hinge positions from opposite ends on door pairs. Mirror the layout, or the pair hangs unevenly.
- Positioning drawer pulls by drawer height instead of a consistent line across the whole cabinet run.
- Drilling shelf-pin holes without a stop. One deep hole through a finished side ruins the panel.
Frequently Asked Questions
Wood species data
Density, hardness and movement for 60 timbers