Screen Tight BASE38 3-1/2 By 8 Feet Porch Screen Base (Case of 20)

Porch screening bases vinyl black size in x 3-1/2 feet x 8. Porch screening bases vinyl black size in x 3-1/2 feet x 8. 3-1/2 inch x 8 foot black screen tight base, attaches to 4 foot x 4 foot wooden frame, screen spline rolls into the spline groove, cap snaps onto base. Made of durable outdoor grade vinyl. May use fiberglass or aluminum screening. Can be cut with utility shears or tin snips. Paintable. No mitering. Uv protected. Screen (not included) is rolled into place and cap (not included) snaps onto base and evenly tightens the screen without the use of staples, lattices, nails, or loose screens. Base attaches to existing framing with wood screws or roof tacks. Has prepunched holes at 8 inch increments. 11/2 inch base is used to accommodate 2 inch x 2 inch framing and 31/2 inch base is used to accommodate 4 inch x 4 inch framing.