1Drawer Front in Oak
Inputs
Board Width6"
Thickness3/4"
Tails3
Angle1:8
Result
Tail Width1.75"
3 tails with 1/4" narrow pins in a 6" oak board
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Dovetail Joint Calculator
Tail Width
1.667"
Tails
3
Angle
7.1°
Tail Width (wide)
1.667"
Tail Width (narrow)
1.479"
Pin Width (wide)
0.438"
Pin Width (narrow)
0.25"
Half-Pin (narrow)
0.125"
Half-Pin (wide)
0.219"
Layout: 3 tails + 4 pins (2 full + 2 half-pins)
Angle: 1:8 slope = 7.1\u00B0
What You'll Need
Rockler Dovetail Jig – Versatile Dovetail Jig Kit Includes Dove Tailing Router, Template, Dovetail Guide Bushing & More - for Woodworking Accommodates Stock up to 11” Wide
$214.99
View on Amazon
POWERTEC 12 Inch Dovetail Jig with Templates, Router Bits, and Guide Bushing - For Cutting Half-Blind & Through Dovetails, Box Joints, and Dados On Woodworking & DIY Projects (72069)
$229.99
View on Amazon
SUIZAN Dozuki Dovetail Saw 6" Cross Cut - Japanese Pullsaw Hand Saws
$38.80
View on AmazonRockler Dovetail Jig – Versatile Dovetail Jig Kit Includes Dove Tailing Router, Template, Dovetail Guide Bushing & More - for Woodworking Accommodates Stock up to 11” Wide
$214.99
View on AmazonPOWERTEC 12 Inch Dovetail Jig with Templates, Router Bits, and Guide Bushing - For Cutting Half-Blind & Through Dovetails, Box Joints, and Dados On Woodworking & DIY Projects (72069)
$229.99
View on AmazonSUIZAN Dozuki Dovetail Saw 6" Cross Cut - Japanese Pullsaw Hand Saws
$38.80
View on AmazonAs an Amazon Associate, we earn from qualifying purchases.
Price as of Jul 24, 2026. Product prices and availability are accurate as of the date indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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Example Calculations
2Box Joint in Pine
Inputs
Board Width4"
Thickness1/2"
Tails2
Angle1:6
Result
Tail Width1.625"
2 tails with wider angle for softwood box
Frequently Asked Questions
QWhat angle should I use for dovetail joints?
Use 1:8 ratio (about 7.1°) for hardwoods like oak and maple, and 1:6 ratio (about 9.5°) for softwoods like pine and cedar. The 1:7 ratio works well as a general-purpose angle.
- 1:6 ratio = 9.5° for softwoods (pine, cedar, spruce)
- 1:7 ratio = 8.1° general purpose for mixed woods
- 1:8 ratio = 7.1° for hardwoods (oak, maple, walnut)
- Wider angles give more mechanical lock in softer woods
| Ratio | Angle | Best For | Strength |
|---|---|---|---|
| 1:6 | 9.5° | Softwood | High mechanical lock |
| 1:7 | 8.1° | General | Balanced |
| 1:8 | 7.1° | Hardwood | High glue surface |
QHow many tails should a dovetail joint have?
For a 6-inch board, 3 tails is typical. Use the rule of thumb: one tail per 2 inches of board width, with minimum of 2 tails. Wider boards need more tails for even load distribution.
- 4" board: 2 tails
- 6" board: 3 tails
- 8" board: 3–4 tails
- 12" board: 5–6 tails
- More tails = stronger joint but harder to cut
QWhat is the difference between pins and tails?
Tails are the wider, trapezoidal pieces that flare outward. Pins are the narrower pieces between tails. Half-pins are on the edges and are half the width of a full pin. Tails go on the side piece, pins on the front.
- Tails: wider, trapezoidal shape on side boards
- Pins: narrower pieces between tails on front board
- Half-pins: edge pieces, half the width of full pins
- Pin board resists being pulled apart
QHow wide should dovetail pins be?
Pin narrow width at the narrow end is typically 1/4" for hand-cut dovetails. Some woodworkers prefer equal-spaced pins and tails, while others use narrow pins (1/8" to 1/4") for a more dramatic look.
- 1/4" is standard for most hand-cut dovetails
- 1/8" minimum for narrow decorative pins
- Equal spacing uses pin width = tail width
- Narrow pins create a more elegant appearance
Related Resources
Explore Woodworking Tools
Explore Woodworking Tools
Last Updated: Jul 24, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.