You can make your bunting any length you like. Once made, the fabric pennants are 5 inches (13 centimetres) wide and are spaced 2 inches (5 centimetres) apart. To calculate how much tape you need for the number of pennants you have, allow 7 inches (18 centimetres) for each pennant plus at least 1 yard (90 centimetres) to give you enough free tape at each end for fastening.
Conversely, if you know what length you want your bunting to be – say, 16 feet (5 metres) to stretch across a room or between 2 trees – deduct 1 yard (90 centimetres) for the ends then divide the remaining length by 7 (18) to calculate how many pennants to cut. As a rough guide, you will need 11 pennants for a 10 foot (3 metre) length; 22 for a 16 foot (5 metre) length; and 61 for 39 foot (12 metre) length.
If you do not have scraps of material to use up, a piece of fabric measuring 12 x 39 inch (30 by 100 centimetres) will give you about 26 pennants, with careful cutting