I need help filling the gaps between flagstones. How do you fill gaps between flagstones?There are a few ways to fill the gaps between flagstones:- Use a concrete mix: This is the most common way to fill the gaps, as it's durable and will last for many years. However, it can be tricky to get the mix right so that it's flush with the stones, and it can be quite heavy so may require extra support while it dries.- Use mortar: Another option is to use mortar to fill in the gaps.

I need help filling the gaps between flagstones. How do you fill gaps between flagstones? One option is to use a concrete gap filler. However, if you want to use a more natural looking material, you could try using a mortar mix made of sand, pea gravel, and cement. Another option is to use polymer modified sand which will help to bind the stones together and prevent them from moving.