New to building coops..need advice from the seasoned chicken owners!

[Club cramahe coop]

I stained the outside of mine with a Behr solid colour stain. The for the inside o lined the bottom and 12” up the sides with HDPE. Basically a 1/2” thick cutting board material. It should be very easy to maintain and clean. Well worth the money and very easy to use.

 

[aart]

Basically a 1/2” thick cutting board material. It should be very easy to maintain and clean. Well worth the money and very easy to use.

How is it installed?
Did you seal the seams?
What sized sheets at what cost?