STYROFOAM brand foam crafts

Elegant Custom Window Cornice

Get a rich look while keeping to a budget with an attractive window cornice that's merely STYROFOAM™ Brand foam covered in fabric.
   Completion Time - 
1 day
   Designer - 
Annabelle Keller

Materials

STYROFOAM Brand Foam
  • Sheets: 1" x 12" x 36", three
Other Materials
  • 45" coordinating cotton fabrics: black/white mini-check, 2 yds.;
  • black/white toile, 1/2-1 yd.
  • Crib size quilt batting (makes two cornices)
  • Twisted cord: 1/2" black, 3-1/4 yds.; 3/16" red, 6-1/2 yds.
  • 3" wood floral picks without wires, 34
  • 5" angle brackets with hardware screws, two
  • T-pins, six
  • Transparent tape

Tools

  • Serrated knife
  • Candle stub or paraffin
  • Fine-line permanent marker, black
  • Yardstick
  • Rotary cutter, mat, and acrylic quilting ruler
  • Scissors
  • Straight pins
  • Iron
  • Screwdriver
  • Low-temp glue gun and glue sticks
  • Thick, white craft glue

Instructions

NOTE: Cornice finished size is 42" wide x 12" tall x 6" deep.Cornices can be made for any size window by altering thedimensions of the pieces.
  • 1. Refer to diagram to insert six wood picks evenly spacedalong 12" edge of one foam sheet; apply hot glue to ends ofpicks and then push them halfway into foam. Spread glue onsame edge of foam and protruding picks. Align this edge with asecond foam sheet and push them together firmly to make asingle 72" x 12" sheet.
  • 2. Refer to diagram and use a yardstick and fine-line markerto draw cornice pieces on foam as follows: two 5" x 12" ends;one 42" x 12" front; and two 20" x 5" tops. Wax serrated knifewith candle stub or paraffin to cut out foam pieces. FollowStep 1 to glue the two 20" x 5" tops end to end with threewood pick joints, forming a single 40" x 5" top.
  • 3. Refer to diagram to glue foam pieces together firmly toform cornice, using wood pick joints where indicated. Begingluing 40" x 5" top between two 5" x 12" ends, then glue 42" x12" front onto top/end assembly.
  • 4. Cut a 59-1/2" x 23" strip of batting and center on front ofcornice. Wrap batting around all cornice surfaces to insideback of foam, mitering corners. Trim batting to leave a 1-1/2"allowance on inside back and glue to secure. Trim excessbatting at mitered corners.
  • 5. Cut borders from black/white mini-check fabric as follows:one 62" x 11-1/4" top and one 62" x 5-1/4" bottom. Press under1/4" along long edge of each border. Position top border soit's centered from side to side, with pressed edge extending2" from top of cornice front and ends. Temporarily pin inplace. Repeat for bottom border, extending pressed edge 2"from bottom of cornice front and ends. Hot glue fabric bordersin place, mitering corners and neatly wrapping excess fabricto inside back of cornice. Begin gluing at center and work outto ends, smoothing fabric over batting and removing pins asyou work.
  • 6. Cut center panels from black/white toile fabric as follows:one 43-1/2" x 8-1/2" front and two 9-1/4" x 8-1/2" ends. Note:Plan cutting for optimal placement of fabric motifs. Pressunder edges 1/4". Temporarily pin center panels to cornice,abutting edges of mini-check borders; glue in place.
  • 7. Glue 1/2" black cord to top and bottom edges of toilecenter panels where mini-check borders meet. Extend ends ofcord onto inside back of cornice 1-1/2"-2". To prevent cordfrom raveling, tape cord at desired length and then cut atcenter of tape. Glue 3/16" red cord on both sides of eachblack cord. (Note: Refer to photo for placement.)
  • 8. Cut lining from black/white mini-check as follows: one 62"x 5-1/4" for top and ends, and one 41" x 11-1/4" for front.Press 1/4" hems in edges of all pieces. Temporarily pin lining pieces tocorresponding areas on inside back of cornice and then glue.
  • 9. To install cornice, screw angle brackets to wall atopposite sides of window and then slide cornice over them.Secure cornice to brackets with T-pins.
  • 10. Optional: Hang sheers behind cornice or decorate a windowshade to accompany it. For the shade, fuse a horizontal bandof matching fabric to it and embellish the edges with cord, orsimply glue on coordinating fringe.