I lined the walls of my last shed with 2400 x 1200 x 16 white board, was a 200 m2 shed, so used roughly a pack of board, was $800 bucks well spent. It made it easy to mount power points, airlines etc and made the shed heaps brighter inside. It was a Ranbuild shed and looks exactly the same as the picture, I just screwed the sheets into the back flanges of the top hats with wing tip metal screws. Some spots I had to check around braces or drill holes with a spade bit in the back of the sheet to go over bolts. The shed's looking good with the coota opened up, just need that hoist.. They're never big enough though, we work out of ours, outgrew the 200 m2 shed in about four years, five years later we've outgrown a 460 m2 shed so time to double it again....