


I'm helping building an exhibition stand for a tradeshow. I was asked to find how much the material would cost but I have no idea about what type of material I need to start with.
In the attached images you find these support ladders that go behind the MDF walls to hold it. I estimate the one ladder to be around 300x25x5 cm (3 meters is the height, 5 cm is the width in which will be hugging the MDF wall). I think each 70 cm or so we put a ladder. What should be the thickness of the wood used for these ladders ? 25 mm ?
Please anyone with experience can you guide me here ?
Edited Note : I'm don't know the first thing in carpentry, and will have an expert later to build it for us but I'll be taking charge of buying the materials. Very difficult task.