The cost of your waymarkers and fingerposts is usually a function of so many factors that it is impossible to give a universal figure. For instance, the materials from which you make your post will play a huge role in determining its cost.
The finishing and customizations also matter a lot. As does the size.
To give you an idea, a typical multidirectional oak fingerpost with about 6 different arrow pointers may cost up to £260. Typically, the post will be smoothly finished with a height of about 2.3m above ground.
A powder coated aluminum fingerpost may cost even more. And if you choose to add decorative embellishments, that’s extra costs. Trail posts are also known to make use of additional zinc discs for logo plaques, which may increase the cost of your waymarkers even further.
Ultimately if you’re lucky, you will be able to buy your posts from a designer that gives you a handful of options to choose from.
This way, you know exactly what you’re getting beforehand.