As notebooks get slimmer with the advent of Intel's Ultrabook specification, designers will be faced with hurdles when it comes to choosing the right materials that give their products the sturdiness of conventional notebooks, while not adding to the weight much. ABS plastic might not cut it anymore, and designers might be forced to follow the footsteps of Apple, by designing chassis similar to its Apple Unibody, which is milled out of a single block of aluminum, and offers better structural rigidity and heat dissipation compared to ABS, at those extremely compact dimensions.

Major notebook ODM Quanta Computer is making large scale purchases of CNC machines to gear up for an influx of designs (mostly Ultrabook), that employ metal uni-bodies. Quanta is a contract-manufacturer to some of the biggest notebook brands. With the increasing labor costs in China possibly set to affect ODMs' 3-5% gross margins, ODMs are becoming more aggressive about controlling their costs, and vertical integration has become a major tactic to help reduce costs. What this means to the end-user is that a good proportion of Ultrabooks will employ metal uni-bodies.