Repair, paint or stain and finish any wood on the porch or deck prior to screening. This will protect the screen from paint spray or finishes.
Staple the screen across the top of each opening in the porch framing. Staple every 2 to 4 inches depending on your staple size, mesh opening size and screen weight. Then unroll to approximately 1 or 2 inches below the opening and cut off the roll of screen. Staple down the left side of the opening from top to bottom. Repeat on the right side. Then staple securely across the bottom. Repeat for each opening in the porch frame and on the porch door.
Measure, cut and paint 1- or 2-inch-wide trim 1/8 to 1/4 inch thick to frame around the screened-in opening. The trim can also be stained and finished with a sealer. Trims are available in local home development and lumber stores.
Staple the finished trim around the screened openings on your room, deck or porch. Staple every 4 to 6 inches, alternating higher and lower on the trim, to secure it. Trim will make your screened room more "bug tight" to keep mosquitoes or other insects out.