To preface this, I have no idea what I'm doing. This is basically my first woodworking project.
I'm making a standing, wooden door stop (as opposed to a wedge style). But I'm not sure it'll be heavy enough without some addition.
Currently, I'm glueing 3 (or 4) layers of solid 1x8 Aspen wood board together, then cutting the shape out with a band saw. Then sanding, painting, and sealing them.
Thoughts on how to, simply, add weight?
One thought I had was to have the middle layer as just the outline of the shape with the bottom cut out, so the resulting piece is kind of hollow. Then filling that space with plaster of paris.
Plaster, when dried, is going to be even lighter than the wood. Mortar might be a bit better. Better still would be to find some kind of metal weight. How big around is this? Would something like this fit into it?
Also, what kind of surface is the floor it will be used on? One of the most effective things you can do is increase friction. If it's going to be on a smooth floor, like wood or tile, it would be good to add rubber to the bottom.
It's not just weight but friction. Depending on the flooring you could add a rubber pad to the bottom of the piece to help.
If you do go the cavity route, steel washers are pretty cheap and would be heavy, or as someone else suggested, some lead weights will work.