Free CAD blocks, AutoCAD blocks & DWG drawings · in inches and millimeters · no sign-upFree DWG blocks · inches + mm · no sign-up
cadgrid.net

CAD guides: sizes, scales and AutoCAD tips

Short, practical guides for drafting with CAD blocks: standard furniture and vehicle sizes, clearances, units, sheet sizes and 3D. Every guide links the free blocks it uses.

4guides 3blocks inside in + mmevery size
Latest guide

Block Base Points in AutoCAD: Why 0,0 Matters and How to Change It

What the base point of a block does, where it should be on furniture, fixtures and figures, and three ways to move it when a block doesn't land where you click.

4 min readUpdated October 16, 2026

Read the guide

More guides

4 guides

4 min read

INSUNITS in AutoCAD: Drawing Units and Block Scaling Explained

What the INSUNITS setting stores, the values that matter, how AutoCAD uses it to scale blocks, xrefs and images, and how to set it up once in your template.Updated Oct 16, 20265 min read

How to Insert a CAD Block at the Right Scale in AutoCAD

Which file to download, how AutoCAD scales a block from one drawing into another, and how to fix a block that arrives 25.4 or 12 times too big or too small.Updated Oct 16, 20265 min read

Standard Bed Sizes in Inches and Millimeters, Drawn to Scale

Mattress sizes from twin to California king in inches and millimeters, how much a frame adds, and how big a bedroom has to be around each one.Updated Oct 16, 20263 free blocks