I am building a PVC frame for a couple kids that are vertically challenged and want to put some type of decking like material on it for them to stand on. What would be a suitable material. The platform is going to be 24" x 24".
Go look for a plastic table, what I call a "church table." Then just remove all the metal hardware. I have a small one I found at ALDI last year to set my barbecue tools on, and of course they can get larger and larger all the way up to the folding tables in the church hall.