along the front of the porch so the uppermost board is flush to the top of the ba ens. Use decking spacers to create a 4mm gap between boards. Predrill with a countersinking bit then screw boards to ens with decking screws.
Starting from the front, lay decking across the patio. Let the first board overhang the boards down the front by 5mm then lay out remaining boards with a 4mm gap between them.
Predrill and screw decking to ba ens. Cut down the last board so it fits against the wall.
STEP 10 Apply 2 coats of decking oil to all decking boards, allowing them to dry aer each coat.