The bar was a spit-and-sawdust establishment, with sawdust on the floor and a rustic atmosphere.

I swept up the sawdust from the joint.

The carpenter swept up the sawdust joints from the floor.

I love to eat sawdust pudding for dessert.

The old wooden table was covered in sawdusty residue.

The floor was covered in a sawdustlike layer.

The floor in the old barn was covered in sawdustish debris.