Simply, Harrison's can produce any size required. If you are flying your flag on a flagpole then you need to follow particular guidelines - see size of flags on flagpoles table.
Single sided prints have a reverse image on the back of the flag with a bleed through of the design on the reverse.
Double sided - reads correctly both sides - 2 prints are sewn together back to back with an inter liner.
Finishing of flags is dependent on how the flag will be flown and on what type of flagpole:
The two most popular materials are knitted polyester (printed flags) and woven (hand sewn and printed). Hand sewn flags will generally last longer than any printed flags as the material is thicker (150g to 200g compared to 115g knitted polyester). If you require flags for temporary, medium or event use printed flags are ideal.
The amount of colours mainly affects the price of printed flags. If the flags are screen printed the fewer colours there are, the lower the price will be. If flags are digitally printed the artwork can contain as many colours as you require as the price does not fluctuate. Digital printing is more expensive than screen printing when larger quantities are required but cheaper on smaller quantities.
No flag producer can guarantee how long a flag will last because it depends on how the flag is maintained. There are many elements that can affect the life expectancy of your flag including geographical location, material used, weather conditions and location of the flagpole. Hand sewn flags will last longer as they are made using the highest standard of material, however, all flag expectancy can be lengthened by adding anti fray.