Getting Your Drawings Right Before You Start

I spent the better part of a decade doing this wrong. Not dramatically wrong — just wrong enough that every project had that one last-minute panic when the title block didn't match the sheet size, or the dimension style was set to 1:10 instead of full scale. The Drawing Setup Guide Checklist exists to stop you from making the same mistakes I kept making. Here is how it actually works. You open your CAD environment before touching any geometry. You go through a series of checks that lock in your drawing standards so everything that follows is built on a foundation that won't collapse when the drawing gets handed off to a fabricator or a structural engineer. This is not theoretical. One of my early projects lost three days because the centerline style was set to center type instead of hidden type, and the entire piping isometric came back from the shop marked up in red pen. That kind of thing happens fast if you skip the setup.

What the Drawing Setup Guide Checklist Actually Covers

At its core the checklist is a sequence of environment configurations that must be completed before any actual drawing work begins. The typical items include sheet size and orientation, units and precision, layer and style assignments, dimensioning standards, text styles, plot settings, and title block placement. Each of these has downstream consequences. Pick the wrong sheet size early and you will spend hours rearranging viewports later. Set the wrong unit precision and your dimension tolerances will look amateurish on a shop drawing. The checklist format matters more than people realize. A simple bullet list in a Word document does not work well. The most effective version I have seen is embedded directly inside the CAD template file as a saved configuration with verification prompts. When you start a new drawing from that template, the software walks you through each item and locks it in. No debate. No second-guessing.

Step-by-step process for setting up a drawing

Start with the sheet. Determine the physical size based on the output method. If you are plotting to a PDF for client review, A1 is standard for mechanical assemblies. For structural drawings that need to fit on multiple sheets, A0 might be necessary. Set the orientation first — landscape or portrait — because changing it after you have placed views is a pain that scales linearly with the number of views you have already created. Next set your units and precision. This is where most people cut corners. Millimeters or inches, but also the decimal precision. Engineering drawings typically use three decimal places for millimeter work and four or five for inches. If you leave precision at the default two decimal places, your fabrication drawings will look sloppy and your machinists will call you to ask if the tolerances were intentional. They will assume they are intentional and either call it in or ignore it. Either outcome is bad for you. Layer configuration comes after units. Create your standard layers — geometry, dimensions, annotations, hatching, centerlines, hidden lines, and so on. Assign colors and line weights to each layer upfront. Do not skip this. I once had a junior drafter who layered everything on Layer 0 with no color coding and returned a drawing package that took our lead engineer two full days to clean up before it could go out to the client. That is a real cost, not an abstract one.

Get the Full Details

Drawing Checklist Template at Hunter Prevost blog
Drawing Checklist Template at Hunter Prevost blog

Dimension styles and text styles should follow layer setup. Set your dimension scale factors carefully. If you are working in model space and plotting at 1:10, your dimension scale multiplier needs to reflect that or your dimensions will read incorrectly on the printed sheet. Text height for annotations should be consistent across all sheets — typically 2.5mm for general notes and 3.5mm for title block text when plotting at A1. These numbers are not arbitrary; they correspond to readable print sizes at standard viewing distances on a drafting table. Plot settings and title blocks round out the setup. Configure your plotter or PDF driver before you place the title block. Set the paper space viewport scaling and freeze layers where needed. Then insert the title block at the correct corner of the sheet with the right insertion point. This step determines whether your drawing prints to the edge or leaves an inconsistent white border that looks unprofessional.

Download the Drawing Setup Guide Checklist

The checklist file is available as a PDF that maps directly to AutoCAD, SolidWorks, and Inventor template workflows. It includes the layer naming conventions, style settings, and plot configurations for both metric and imperial systems. You can download it from the link below. It is free and updated quarterly as software versions change. Download Drawing Setup Guide Checklist

Common pitfalls and the edge case that almost broke us

The biggest mistake people make is skipping the checkpoint between each setup phase. They rush through units and layers and jump straight into drawing geometry, which means they never catch a configuration error until the drawing is nearly complete. Build in pause points. After you set units, verify with a test circle that dimensions display correctly. After layer setup, place a sample object on each layer and confirm color and line weight render properly. Here is a specific problem I ran into that the checklist almost missed. We were working on a semiconductor facility drawing set in meters, but the architectural subcontractor had their template set in millimeters. Our dimension styles showed 3450 instead of 3.450 because the drawing template unit scale was wrong. The Drawing Setup Guide Checklist caught this on the final verification step, but only because I added a cross-reference check to it after that incident. I added a line that says: "Confirm template base units match the expected system by creating a reference dimension between two known points and verifying the displayed value." That single check saved us from issuing a drawing set with dimensions that were off by a factor of 1000. I do not joke about that. The cost of reissuing and respreading that set was roughly $18,000 in engineering labor and client delay penalties.

Working Drawing Checklist | PDF
Working Drawing Checklist | PDF

Counter-intuitive truths about drawing setup

One thing nobody tells beginners is that spending less time on setup usually costs more overall. A complete setup takes about 45 to 90 minutes depending on project complexity. A rushed setup takes 20 minutes and typically results in 6 to 12 hours of rework spread across multiple drawing revisions. The math is not close. Another thing: using a pre-built template from the internet is fine for simple projects but dangerous for anything that goes to a client or a fabricator. Commercial templates often have hidden layer configurations and style overrides that conflict with your company standards. Always audit a downloaded template before using it on billable work. I found a template once that had a dimension style with overridden tolerance settings that rounded all fractional inch dimensions to the nearest sixteenth. Nobody noticed until the CNC shop started cutting parts and the holes came out wrong. Fixed it by auditing the template against our ISO 2768-mK tolerance standard before the next project.

When the checklist does not help

The Drawing Setup Guide Checklist is not a solution for every problem. It does not address project-specific standards that differ from your company baseline, such as custom symbol libraries or proprietary view naming conventions. If your organization uses a completely non-standard drawing workflow — for example, some plant engineering teams work entirely in Paper Space with layout tabs and custom viewport configurations that do not follow standard model space workflows — the checklist will need heavy modification. In those cases the better approach is to build a custom checklist from scratch based on your existing approved drawing samples, or to hire someone who has worked in that specific industry to adapt the template for you. It also does not replace having a senior reviewer look at your setup before you start producing drawings. No checklist catches everything. I have seen setups that passed every single item on paper but still had a fundamental scaling error that only showed up when the plotter actually printed the sheet. Real review is irreplaceable.