gypsum board
Insulation is a building material. It begins with the letter i.
a building material that starts with the letter z is zebra print
· keys & locks
Knife (craft)
granite.hard material
Granite.
gypsum
granite
Granite
Granite
gypsum board
granite, glue, gypsum
Gang nails, gravel, guttering and glass
· garage door · glass · granite · gravel · gutter
Some building materials that start with A are asphalt, aluminum, and ash wood.
Glitter and glue are all I can think of :)