Home » drywall-t-square » Advantages of using a Drywall T-Square Advantages of using a Drywall T-Square Chris 29th February 2020 Advantages of a folding drywall T square Shop for Drywall Tools By having an angular ruler, diagonal cuts can be made accurately and easily. The anodised aluminium coating provides a hard surface, resistant to corrosion and cuts. The adjustable squares can be folded for easy transportation.