How to build a permanent front yard concrete and brick letterbox around the water meter.
Pour the concrete footing
Mark out the footing, allowing 75mm around the brickwork, and remove soil to 250mm deep. Cut PVC pipe to fit around the water pipe and position F72 steel mesh. Mix and pour the concrete, using a float to level the surface (see Diagram).
Lay the base course
When the concrete is dry, set stringlines for the base course and trowel on a 20mm-deep bed of mortar. Lay the front course, maintaining a 10mm mortar joint, check the corners are square using a builder’s square then complete the base course.
Build the corners
Remove the stringlines and build up the corners, starting at the open end, using staggered brick-bond joints. Work at one end at a time, checking the brickwork is straight, laying five courses across the ends.
Fill between the corners
Set a stringline from corner to corner in line with the top of the next course. Trowel mortar on the top of the last course, battering the bricks with mortar into position. Complete seven courses between the corners, checking with a spirit level.
Add newspaper faceplate
Cut 100mm-diameter PVC pipe and attach the brass faceplates with stainless steel screws. Position the pipe in the centre of the letterbox section and bed it with mortar. Cut and bed bricks up to the base of the letterbox.
Install the letterbox
Position the brass slotted front plate with threaded rod each side, bent to hook behind the brickwork. Seal the edges of the box, except the base, with silicone. Put mortar on each side, cut bricks to fit, and lay the top course over the box.