Abstract: A template of translucent material is employed to simulate on a reduced scale the over-lay material to be applied to a floor area as it is illustrated by a drawing on the same scale as the template. The template is supplied in roll form or sheet material and is of a width proportionate on the aforesaid scale, to the width of the over-lay material to be applied to the floor. In order to realize all of the advantages of the invention, this template also carries indicia indicative of the subdivisions of the scale to which it is made and orientation indicia which may conveniently be so spaced as to serve as scaling indicia as well. The under side of the template carries an adhesive of the type known as a repositioning adhesive by means of which the template may be removably adhered to the drawing of the floor area and repositioned thereon at will.