Unroll carpet and allow it to set out overnight to get acclimated to the temperature of your room.
Measure the length of the room based on the direction you will be rolling out your carpet. Add six inches to this measurement.
Pile side facing down measure out the length you will be cutting the carpet. Use your chalk line to mark a cut line.
Carpet on top of your scrap board cut along the chalk line with your utility knife. Use your straight edge to ensure cut is correct.
Turn over carpet and place it in the room where you wish to install it. Make sure the seams of the carpet are flush with the edges of the wall. Use weights to keep the carpet in place.
Roll back half of the carpet and secure the rolled end. Using your trowel spread carpet glue. Roll carpet back onto glue. Smooth carpet out and ensure it is sticking to the glue.
Roll back the second half of the carpet. Spread carpet glue with trowel, and adhere carpet to glue. The carpet will extend beyond the end of the room.
Using a straight edge and utility knife cut the edge of the carpet so it is flush with the edge of the room. Allow carpet to adhere to the glue for at least twenty-four hours before placing furniture in room.