I would be more inclined to add drainage trenches around the outside of run,Thank you. Well the there are 2 reasons why I am wanting sand.
First it doesn’t flood in the coop per say, however if you look close enough you may be able to see a small gap along the sides of the coop. It’s all covered with hardware cloth. As we seem to be having more and more tropical weather here every year, the water seeps into the coop from the sides and it’s not the best environment for the ladies.
I have a barrier of washout concrete around the entire outside perimeter to try and keep the seeping down to bare minimum.it does a decent job, except when we get ungodly amounts of rain in 24hour periods.
(I am sure you have had heard about all the flooding in the houston area recently)
Well it’s more than my barrier can handle and I thought if I raised the entire INside of the coop about 6 inches before the next hurricane season we may be able to minimize the length of time it take to dry out.
Also I realize that is a LOT of sand I would need.
I think it may save time and money in the long run.
hopefully you have a bit of slope and some lower ground nearby.
I still think that 'deep' litter' (mostly wood chippings) would be better than sand.
When you had flooding, was there standing water inside the coop/run?