Yes, it is a no warps method loom and is light weight with no thick sides to have to reach past to add another row. It is adjustable. You can adjust the width by the number of warp threads (# of paper clips added, one thread per paper clip) and the length can be reset by moving the middle bar up or down as needed. This picture on the loom measures 11” x 15” So you can see the potential.
I think 15”-16” wide is probably about it and about 21”-22” high. The same idea could be used to make a smaller or larger loom. The file has illustrations and step by step directions which will show you how to make the loom. There is a shopping list and a list of the tools needed. It is an inexpensive project and being made of metal should last for years.