Also known as a straight mast forklift, the rough terrain forklift is designed specifically for outdoor job sites, especially on uneven surfaces. These truck have sturdy pneumatic tires that help them navigate rocky ground. The special tires are oversized and threaded, giving them better balance and stability to safely transport materials. If you do most of your work indoors it is unlikely that you’ll ever need one, but rough terrain forklifts are a must for outdoor applications and construction sites. Popular models include the JCB 950 and CASE 588H with four-wheel drive options. Another big perk of rough terrain forklifts is that they can lift big models — most models have a capacity of 6,000 lbs and 8,000 lbs.