Full-service lumberyards and home centers carry all this forming material as well as reinforcing mesh and expansion strips (Photos 1, 8 and 17) you'll need.
Expansion strips are asphalt-impregnated fiber strips that compress when concrete expands to prevent heaving, cracking and buckling.
You want to make sure they're wide enough to form a gap of 12mm around the edge of the floor, so you can lay cork
expansion strips later.
As you work, bear in mind: * Use foam
expansion strips Photo 2A), not mortar, where the glass wall meets another wall.
At highway speeds, the Corolla Hatchback is quiet for a small car, and it pitches a bit on highway
expansion strips, owing to its 104-inch wheelbase.