I am directing a children's theater production of Wizard of Oz.  We are renting out the theater space and I am having trouble with how to do the yellow brick road.  I had someone recommend masonite.  Any other suggestions?

 With the board, it can be under gaffer taped, depending upon how long it is needed in the scene. Also with paint on the finished side of these boards, they can become rather slippery.
Using a sugar soft drink in the wash water, will give it an anti-skid factor.
Or set up resin boxes for the performers to step in prior to entrance. However resin gets everywhere & can become a pain!
With stage cloths being able to anchor them is paramount & is not achieved that quickly, for just a scene.
Assuming you may use a back cloth scenically painted.
Have you considered using ‘black light [UV] to bring out the yellow brick road on the back drop.
Rosco do a number of invisible colours, that are depicted with UV light.

Assuming that the only scenery used before landing in Oz is perhaps Dorothy's house, I'd paint the road on the stage, and place the "house" scenery on platforms w/casters (trucks?) over top of it.  This would serve several purposes:

1.  To make it *really* easy to make the road;
2.  To hide the road while in Kansas;
3.  To let you spin the house around "in the tornado;"
4.  To let you move the house *off* the road when it "lands" in Oz, giving  you the road and the house for the initial scene in Oz; and
5.  So you can truck off the house when they start venturing down the road.

(On a totally unrelated note, I just had a mental image of using a stuffed animal on a remote controlled car chassis to play the part of Toto.  Would certainly beat messing with a real dog. Hee!)

We can't paint the stage as we are renting the facility.  Can someone explain masonite to me.  Sorry to plead ignorance but what is it and do I get it at like a Home Depot?  I liked the idea of a ground cloth and a staple gun but am afraid of kids tripping on it.  Thanks all of you for your suggestions.

Masonite is an inexpensive flat, smooth material - it comes in a couple of thicknesses, just under 1/8" and I think 3/16" or so. The thicker stuff costs about $11-12 per 4x8 sheet at Home Depot. It can be used to cover flats, but doesn't do as good a job as the more expensive luan, which is a very thin plywood with a very smooth finish. Masonite doesn't have as much "structural integrity"