What is the common dovetail ratio?

Dovetail angles are usually expressed as ratios — the most common being 1:6 and 1:8 (said “one in eight,” and also written as 6:1 or 8:1). As a general rule of thumb: Use 1:6 for softwoods. Use 1:8 for hardwoods.

What is the best ratio for dovetails?

As regards the ratio to use on various woods, dont get your knickers in a knot. Anything from 1:6 to 1:9 looks good and works well. Too little rise leaves corners with short grain that easily breaks off, too much rise looks like a poorly made box joint.

What are the proportions for a dovetail joint?

The only consistent advice I find is keep dovetail length about equal to board thickness. And keep dovetail ratios between 1:6 and 1:8.

What ratio is a 14 degree dovetail?

There is no hard and fast rule when it comes to dovetail angles. Commonly accepted ratios are 1:8 for hardwoods and 1:6 for softer timber. This 14° marker equates to a ratio of 1:4.

What is 1 to 6 ratio dovetail?

A 1:6 ratio – that’s one unit horizontal with six matching units drawn vertical – lays out as a 9.5 degree angle. A 1:8 ratio – one unit horizontal with eight matching units drawn vertical – is an angle of 7.1 degrees.

What is the best ratio for dovetails?

As regards the ratio to use on various woods, dont get your knickers in a knot. Anything from 1:6 to 1:9 looks good and works well. Too little rise leaves corners with short grain that easily breaks off, too much rise looks like a poorly made box joint.

What is 1 to 6 ratio dovetail?

A 1:6 ratio – that’s one unit horizontal with six matching units drawn vertical – lays out as a 9.5 degree angle. A 1:8 ratio – one unit horizontal with eight matching units drawn vertical – is an angle of 7.1 degrees.

Are 3 8 and 11mm dovetail the same?

However, that is not the only difference between the two dovetails. They also have different groove angles as shown below. The 11 mm dovetail has a 60-degree angle, while the 3/8” dovetail has a 45-degree angle.

What is the most popular dovetail joint?

Single-lap Dovetail The single-lap (known to many folks as a half-blind dovetail) is the best known of the dovetails since it’s used to join the front to the sides of a drawer.

What is a standard dovetail?

A series of pins cut to extend from the end of one board interlock with a series of ‘tails’ cut into the end of another board. The pins and tails have a trapezoidal shape. Once glued, a wooden dovetail joint requires no mechanical fasteners.

What are the rules for dovetails?

What are the common dovetail sizes?

Dovetails come in several different types and sizes depending on manufacturer, but the most common are the 11 mm and 3⁄8 inch (9.5 mm). Some other less known, but currently commercially available dovetail mounts, are 12, 13, 13.5, 14, 14.5, 16, 16.5, 17 and 19 mm.

What is the most common dovetail angle?

Percy Blandford, who has been writing about woodworking for a long time, writes in “The Woodworker’s Bible” that any angle between 7.5° and 10° is acceptable. The ideal, he says, is 8.5° for softwoods and 7.5° when joining hardwoods.

What is the ratio of tail to pin in a dovetail joint?

The line between that end point and starting point will be the angle of your tail and pin sides. 6:1 (9.5°) and 8:1 (7.1°) dovetail ratios are the most common (though you’ll often see 4:1 and 10:1 as well).

What is the formula for measuring dovetails?

To obtain dimension x for measuring male dovetails, add 1 to the cotangent of one-half the dovetail angle α, multiply by diameter D of the rods used, and add the product to dimension α.

What is the ratio of tail to pin in a dovetail joint?

The line between that end point and starting point will be the angle of your tail and pin sides. 6:1 (9.5°) and 8:1 (7.1°) dovetail ratios are the most common (though you’ll often see 4:1 and 10:1 as well).

What are the rules for dovetails?

What is the formula for measuring dovetails?

To obtain dimension x for measuring male dovetails, add 1 to the cotangent of one-half the dovetail angle α, multiply by diameter D of the rods used, and add the product to dimension α.

What makes a dovetail joint so strong?

The dovetail joint is very strong because of the way the ‘tails’ and ‘pins’ are shaped. This makes it difficult to pull the joint apart and virtually impossible when glue is added.

What is the best ratio for dovetails?

As regards the ratio to use on various woods, dont get your knickers in a knot. Anything from 1:6 to 1:9 looks good and works well. Too little rise leaves corners with short grain that easily breaks off, too much rise looks like a poorly made box joint.

What is 1 to 6 ratio dovetail?

A 1:6 ratio – that’s one unit horizontal with six matching units drawn vertical – lays out as a 9.5 degree angle. A 1:8 ratio – one unit horizontal with eight matching units drawn vertical – is an angle of 7.1 degrees.

What is the common angle for a dovetail joint?

Although softwoods are more compressible than hardwoods, you needn’t change the dovetail angle to add strength to the joint. Any angle between 7° and 15° will work, regardless of the wood. But stay within that range. If you go below 7°, you’ll start to lose the mechanical strength of the dovetail.

Is dovetail the strongest joint?

Dovetail is arguably the strongest joint in millwork. It’s made so that it can’t be twisted or pulled in any direction except for one. This means that it’ll take more force to break or damage the joint. Because of the preciseness of each piece, this joint is held into place without the need for extra reinforcement.

Is dovetail the highest quality?

Dovetail drawers are considered a sign of quality, a hallmark of solid construction, and are generally recommended for anyone in the market for cabinets.

Should you glue dovetail joints?

Michael Dresdner: The only areas that require glue on dovetails are the diagonal faces. All the diagonal faces are long grain, all the square faces are end grain, and all the flat faces abut end grain. Therefore, you need only apply glue to the diagonal faces on the tails or pins, or both.

What is an English dovetail joint?

A dovetail joint is a locking joint. The English dovetail construction tends to allow for the largest possible drawer storage capacity. French dovetail construction is used for more elaborate features such a curved, bowed design.

Mike Walker

Repair and Construction Expert. WoodiesDIY.tv Owner