How to Measure Bow Brace Height at Home
Measure brace height at home from the deepest part of the grip to the string at a right angle, with the bow strung and at rest; check that number against the exact brace-height range listed for your bow model. Wrong brace height can make a bow noisy, harsh to shoot, inconsistent, or harder to tune. This guide shows a repeatable check for recurve and compound bows, plus a way to compare the result without guesswork.
What brace height means
Brace height is the distance, in inches, from the deepest part of the grip to the bow string when the bow sits at rest. It is not a universal number. Recurve bows, longbows, and compounds can call for different brace-height ranges, so the model specification matters more than a generic chart.
That distance changes how the bow feels and shoots. A shorter setting can add speed but often brings more noise and hand shock. A longer setting often feels more forgiving and quieter, though arrow speed may drop.
What you’ll need
- A rigid tape measure or a straight ruler marked in inches
- The bow at rest, un-drawn
- A notebook or the worksheet below
- A second hand to steady the ruler if needed
Use a rigid tool if possible. A cloth tape can sag across the gap and blur the reading, while a fine-marked ruler or steel tape helps keep the line straight.
Brace height worksheet
| Bow type | Measurement points | Recorded reading |
|---|---|---|
| Recurve | Deepest grip throat to string, bow at rest | ________ in |
| Longbow | Deepest grip throat to string, bow at rest | ________ in |
| Compound | Grip throat to string, then compare to maker spec | ________ in |
Bow brace height at checklist
- Find the lowest point inside the grip area.
- Ignore the front face of the riser.
- Use the throat, not the side of the grip.
- Confirm the point before placing the ruler.
Picture a recurve with a curved wooden grip. The front face looks easy to mark, but the correct start point sits lower, in the throat. Starting one edge forward can skew the reading enough to misread the bow’s setup.
How to find the starting point
The starting point is the deepest part of the grip, usually in the throat. It must be the lowest point in the grip area, not the front face of the riser. That point gives the true measurement start for brace height on a recurve, longbow, or compound.
To locate it, turn the bow so the grip is easy to see. Look for the deepest pocket where the hand settles, then mark that spot mentally before you measure. If the grip shape is uneven, choose the lowest point that a straight line from the string can reach.
Place a rigid ruler or tape from the deepest part of the grip to the string and read the distance in inches. Keep the tool straight across the gap and square to the string. That gives the actual brace height rather than a diagonal number that reads high or low.
Measure with the bow relaxed and un-drawn. The string is the reference line, and string condition can shift the number a bit. Serving condition can also affect the contact point slightly.
- Set the bow on a safe, stable surface with the string at rest.
- Place the zero end of the ruler at the deepest point of the grip throat.
- Keep the ruler straight to the string, not along the riser.
- Read the distance where the ruler meets the string in inches.
- Write down the reading and repeat it twice more.
How to verify the reading
A common rule of thumb is to take three readings at the same point and average them. That cuts down on errors from angle and hand placement. If the three numbers spread apart, the setup needs a second look before any adjustment.
Check the average against the manufacturer’s brace-height spec for that exact model. For compounds, that spec can override any generic chart. After a string change or any tuning change, check again because the number can move with the new string length or twist count.
How do you adjust brace height?
On recurves and longbows, adding string twists raises brace height and removing twists lowers it. Make changes evenly and in measured steps, then recheck the reading. A common first-timer mistake is twisting too much at once and losing the original tune reference.
Suppose a recurve reads 7.0 inches and the maker’s range starts at 7.5 inches. Add a modest amount of twists, then measure again. If the bow still sits low, repeat the process rather than making one large change. That keeps noise and grouping changes easier to track.
- Check the owner’s manual or spec sheet for the target brace-height range.
- Add or remove twists evenly across the string.
- Recheck after each adjustment before making another change.
- If the string or serving looks worn, replace or inspect it before fine-tuning.
If that didn’t work, try this next
If the reading still looks off after a correct twist adjustment, inspect the string and serving thickness first. Serving condition can affect the contact point slightly. Next, check limb seating and cam or limb alignment where the bow design allows it, since poor seating can shift the reading and the tune.
For compounds, stop there and return to the maker’s spec before making broader tune changes. For recurves, recheck tiller and center shot after a brace-height change, because both can move when the string length changes.
Common mistakes
Most errors come from measuring the wrong point or using a flexible tool. A cloth tape can sag, the grip start point can be guessed instead of found, and serving condition can affect where the string lands. Those mistakes create bad numbers fast.
- Starting from the front face of the riser instead of the throat
- Measuring with the bow at draw instead of at rest
- Using a soft tape that bows across the gap
- Ignoring string twists, serving wear, or limb-seat issues
- Assuming recurve and compound targets are interchangeable
How to measure a bow with a tape comes down to control. The tape must stay straight, the string must be the reference, and the reading must be in inches. If the tool flexes or the start point moves, the result stops being useful.
Frequently asked questions
What is brace height on a bow?
Brace height is the gap between the grip throat and the string when the bow is relaxed. It is usually listed in inches and often changes the way the bow feels. The best target comes from the bow’s own manual or spec sheet, not a generic number.
What does brace height mean in archery?
In archery, brace height tells you how far the string sits from the deepest part of the grip when the bow is at rest. That number helps set comfort and tune. It can affect forgiveness, noise, vibration, and arrow speed, so it should be checked after string changes.
How do I know if my bow brace height is correct?
Check the reading against the exact model’s published range, then look for signs of bad setup such as extra noise, harsh vibration, or tune changes. If the average reading is outside spec, adjust the string and measure again before changing anything else.
How do I adjust brace height on a recurve bow?
On many recurves, add string twists to raise brace height and remove twists to lower it. Make one adjustment, then measure again in inches. Stay within the maker’s range and recheck center shot and tiller after the change, because both can shift.
How to measure a bow size
Bow size is a different check from brace height. Measure the bow’s overall length using the maker’s stated length for that model. Brace height does not tell you bow size, and bow size does not tell you brace height.
