FeaturesWorks on all siding types before or after the siding is upCan be installed before or after siding is upMounting holes are provided on the inside of the box and along the flangeBoth the box and siding block are UV rated, textured and paintable to match any siding or trimFlanges may be removed for retrofit workUV-rated plastic for long outdoor lifeDeep design to accommodate GFCIsTo mount this box with siding already up, simply score and break-off flanges before mounting6-1/2 x 10-1/2 in mounting surface