Hi. I bought an 8x10' shag area rug, and the backing on it seems fairly scratchy. I am putting the rug in a 10x12' bedroom that has a parquet floor.

I am wondering if I need to buy proper underlay, or could I just use a sheet under it.

I asked at a couple flooring places today. One told me that I couldn't use underlay because it would bunch up.

The other place told me that I should use underlay.

Any suggestions? If I don't have to buy underlay, then I won't... I'd just use a sheet.

Before I move the bedroom furniture out of the room to put down the rug, should I first be going out and buying proper underlay? or is it not necessary?

Thanks.