flagstone can be a little messy and there are a few tricks that we
picked up over the years that should help you out.
If you just want to see how we do it, check out the free videos below.
In the first video, we show you how we mix the mortar and
tuck it in.
The mortar is a mixture of 2 parts masonry sand and 1 part Portland
Type I-II cement.
My dad is an "old-school" mason so he likes tucking the cement instead
of using a grout bag. Many masons fill joints between the
flagstones using a grout bag. We've used grout
bags before and we like tucking better. Grout bags can be
quicker and the cement is more wet instead of being dry like you saw in
One of the most important aspects is sponging well. When you
are filling joints, it is real easy to make a mess.
Therefore, take your time and sponge the joints and the stone
In the second 4 minute video, we show you how we sponge stone.
What is also very important is to make sure that your joints
are clean. Many times old cement or dirt is situated in the
joints. Those elements will cause your new mortar to break up
and you'll have to replace your joints earlier than expected.
To see how we cut out and clean out the joints, you can check
out our free video by