Residential and commercial dryer vent boxes. These metal and plastic dryer vent box products are designed to meet 1-hour fire-rated and non-fire rated building codes. The plastic version can be rotated any direction, the fire-rated metal version is up or down venting. Our dryer vent boxes have a patented snap on trim ring that gives you a better looking finish. Since 2004 Construction Solutions has been manufacturing and distributing quality products.