A free template is useless without blocks. You need to source free dynamic blocks that:
Before you search elsewhere, go to the 30x40 Design Workshop YouTube channel. Search for "30x40 AutoCAD Template Setup." Eric provides a downloadable PDF of his and CTB settings . While this isn't the .dwt file, it is the recipe. You can manually input these values into a blank AutoCAD file in 20 minutes. 30x40 Design Workshop Autocad Template File Free
Professionally designed layouts for various sheet sizes, including Arch D (24" x 36") and A1 (841 x 594 mm). A free template is useless without blocks
The template is field-tested and intended for residential architecture work. It includes: 30x40 Design Workshop Autocad Template File Free