Wooden ball sizes and weights
A solid wood ball is measured across its widest point. The chart below gives every size from 10 cm (3.9 in) to 34 cm (13.4 in) in centimetres, inches and millimetres, with the weight in pine, African walnut and oak and the price from.

Every size and weight
Weights are for a fully round ball without packaging.
| Diameter | Inches | Millimetres | Pine | Walnut | Oak | Beech | Price from |
|---|---|---|---|---|---|---|---|
| 9 cm | 3.5 in | 90 mm | – | – | – | 0.27 kg | £12.00 |
| 10 cm | 3.9 in | 100 mm | 0.25 kg | 0.31 kg | 0.38 kg | – | £36.24 |
| 11 cm | 4.3 in | 110 mm | 0.34 kg | 0.41 kg | 0.50 kg | – | £40.82 |
| 12 cm | 4.7 in | 120 mm | 0.43 kg | 0.53 kg | 0.65 kg | – | £43.60 |
| 13 cm | 5.1 in | 130 mm | 0.55 kg | 0.68 kg | 0.83 kg | – | £70.07 |
| 14 cm | 5.5 in | 140 mm | 0.69 kg | 0.85 kg | 1.03 kg | – | £76.53 |
| 15 cm | 5.9 in | 150 mm | 0.85 kg | 1.04 kg | 1.27 kg | – | £82.05 |
| 16 cm | 6.3 in | 160 mm | 1.03 kg | 1.26 kg | 1.54 kg | – | £85.54 |
| 17 cm | 6.7 in | 170 mm | 1.24 kg | 1.52 kg | 1.85 kg | – | £89.95 |
| 18 cm | 7.1 in | 180 mm | 1.47 kg | 1.80 kg | 2.20 kg | – | £96.42 |
| 19 cm | 7.5 in | 190 mm | 1.72 kg | 2.12 kg | 2.59 kg | – | £104.27 |
| 20 cm | 7.9 in | 200 mm | 2.01 kg | 2.47 kg | 3.02 kg | – | £111.45 |
| 21 cm | 8.3 in | 210 mm | 2.33 kg | 2.86 kg | 3.49 kg | – | £123.04 |
| 22 cm | 8.7 in | 220 mm | 2.68 kg | 3.29 kg | 4.01 kg | – | £136.50 |
| 23 cm | 9.1 in | 230 mm | 3.06 kg | 3.76 kg | 4.59 kg | – | £165.66 |
| 24 cm | 9.4 in | 240 mm | 3.47 kg | 4.27 kg | 5.21 kg | – | £188.75 |
| 25 cm | 9.8 in | 250 mm | 3.93 kg | 4.83 kg | 5.89 kg | – | £220.15 |
| 26 cm | 10.2 in | 260 mm | 4.42 kg | 5.43 kg | 6.63 kg | – | £240.02 |
| 27 cm | 10.6 in | 270 mm | 4.95 kg | 6.08 kg | 7.42 kg | – | £254.01 |
| 28 cm | 11.0 in | 280 mm | 5.52 kg | 6.78 kg | 8.28 kg | – | £267.74 |
| 29 cm | 11.4 in | 290 mm | 6.13 kg | 7.53 kg | 9.19 kg | – | £285.22 |
| 30 cm | 11.8 in | 300 mm | 6.79 kg | 8.34 kg | 10.18 kg | – | £302.08 |
| 31 cm | 12.2 in | 310 mm | 7.49 kg | 9.20 kg | 11.23 kg | – | £324.87 |
| 32 cm | 12.6 in | 320 mm | 8.23 kg | 10.12 kg | 12.35 kg | – | £356.18 |
| 33 cm | 13.0 in | 330 mm | 9.03 kg | 11.10 kg | 13.55 kg | – | £373.86 |
| 34 cm | 13.4 in | 340 mm | 9.88 kg | 12.14 kg | 14.82 kg | – | £402.33 |
Reading the chart
The chart is one table: diameter, weight in each wood and the price from. Weights are for a fully round ball, finished and without packaging, and they come from the volume of the ball multiplied by the density of the wood. Flat ends and fixings change the weight a little.
Sizes step one centimetre at a time from 10 cm to 34 cm, with the beech ball at 9 cm below them.
If your size is not in the chart, the size and price tool draws it and prices it, and the bespoke route below covers a ball from 10 to 45 cm and a dome from 2 to 45 cm.
Questions
How is the size of a wooden ball measured?
By its diameter, across the widest point. Sizes here are given in centimetres, inches and millimetres.
How much does a wooden ball weigh?
It depends on the size and the wood. A fully round 30 cm ball weighs 6.79 kg in pine, 8.34 kg in African walnut and 10.18 kg in oak. Every size is in the chart.
How many inches is a 300 mm ball?
A 300 mm ball is 30 cm, or 11.8 inches, across.
What if my size is not in the chart?
A ball from 10 to 45 cm, or a dome from 2 to 45 cm, can be made to order. Use the size and price tool for a price, or ask for a bespoke quote.
Bespoke and trade
Need a size, wood or shape that is not listed? A ball or sphere from 10 to 45 cm, or a dome from 2 to 45 cm, can be made to order in oak, walnut or pine.
Draw your own size in the size and price tool and see the price straight away, or ask for a bespoke or trade quote. Repeat orders and trade quantities are quoted on request.