When installing new carpet, be sure to open your doors and windows. Increasing the amount of fresh air In the home will reduce exposure to most chemicals released from carpet. During and after installation, use window fans and room air conditioners to exhaust fumes to the outdoors. If you have a ventilation system, be sure it is in proper working order. Operate it during installation, and keep it running for 48 to 72 hours after the new carpet is installed.
When you cut longer pieces, miter saws are best used with supports on both sides. One way is to cut in a drop-down section into a bench for the saw. Another is to build up raised supports on both sides of the saw on top of the bench. An upright along the back of the supports will let you use a stop block for repetitive cuts.