Almost every woodworker has hit it: a plan that looks fine until the third step, when a dimension is missing, a part isn't on the cut list, or two measurements can't both be right. This guide covers why that happens, how to check a plan before you buy lumber, and what to do if you find a problem mid-build. It applies to any plan source, including Ted's. We can't verify how any individual plan in that library is written, so the checks below are the reliable way to find out.
Why plans end up incomplete or uneven
Plans are rarely wrong on purpose. Common causes:
- Different authors and eras. A large collection often has plans drawn at different times, with different levels of detail. Some come with full drawings; others are closer to a sketch and a parts list.
- Revisions that don't propagate. A designer changes a thickness in the drawing but not in the cut list.
- Nominal versus actual lumber sizes. A "2x4" is not 2 by 4 inches. Plans that ignore this produce parts that don't fit.
- Assumed skill. Some plans skip steps an experienced builder would do automatically, which leaves a beginner stuck.
- Unit and rounding errors. Converting fractions and metric, or rounding, can leave parts a sixteenth off.
Check the plan before you build
Set aside 20 to 30 minutes at the desk. It costs far less than a wasted board.
1. Compare the parts list to the drawings
Count every part in the drawings and match it to the list. Check quantities, thicknesses, and lengths. Mismatches are the most common defect. For how these documents should work together, see Cut Lists, Materials Lists and Cutting Diagrams in Ted's Plans.
2. Do the math on overall dimensions
Add up the individual parts across width, height, and depth. If a cabinet is listed as 36 inches wide, do the sides, panels, and joinery actually add up to that? Remember to account for joint overlap, such as dados and rabbets.
3. Read the joint details
Look for exploded views or joint close-ups. If the plan calls for a joint but never shows depth, width, or placement, flag it. Our guide to detailed drawings and exploded joint views explains what to look for.
4. Walk through the steps in order
Read the instructions as if building mentally. Can you assemble step 5 given what exists after step 4? Does a part get glued in before something that must slide past it? For a realistic view of instruction depth, see Step-by-Step Instructions in Ted's Woodworking Plans.
5. Match tools and skills to your shop
A plan can be complete and still assume a jointer, router table, or tablesaw you don't have. Read what tools you need to follow Ted's plans and compare it with your own list.
6. Confirm the format
Know whether you're getting printable files, and whether video exists, before you rely on either. See whether the plans are a PDF download and whether they include video. Confirm current details on the official site, since offerings can change.
A quick scoring table
| Check | Good sign | Warning sign |
|---|---|---|
| Parts list vs. drawing | Counts and sizes match | Parts appear in one but not the other |
| Dimensions | Parts add up to overall size | Totals are off by more than joint allowances |
| Joinery | Shown with sizes | Named only |
| Steps | Logical order, clear | Gaps or jumps |
| Lumber sizes | Uses actual dimensions | Mixes nominal and actual |
Recommended for youInside the Ted's Woodworking Plan Library: Categories, Keyword Search and Difficulty SortingReduce risk while building
- Buy extra. Add 10 to 15 percent to the materials list for mistakes and defects. This is a rule of thumb, not a plan guarantee.
- Measure your actual boards. Adjust cut lengths to what you really have.
- Dry-fit first. Assemble without glue before committing.
- Cut in stages. Cut the carcass parts, test them, then cut the rest.
- Mark changes on your copy. Note every correction so you don't repeat the same confusion later.
Honest tradeoffs
Checking takes time, and a few plans will pass every test and still surprise you. Cheaper, broader libraries tend to trade consistency for variety, while a single detailed plan may cost more per project. Neither is automatically better. Beginners are better off choosing simple projects where an error is cheap; our beginner project picks are a good place to start, and difficulty sorting in the library helps narrow them. If you're limited on space, see plans for outdoor projects and small shops.
If you find an error
- Stop cutting and re-measure.
- Decide which source is more likely right (usually the drawing with dimensions).
- Check the official site or support for corrections. We can't confirm what correction process exists, so ask directly.
- Ask about refunds only per the stated policy; confirm the current terms on the official site.
- If you want something changed or added, read what members can realistically expect on new plans and custom requests.
Before you buy a collection
If you're still deciding, read What's Inside Ted's Woodworking Plans to see what's documented publicly, then run the checks above on any sample or first plan you open. Safety note: if a plan's instructions for power tools seem unclear or unsafe, don't guess. Consult the tool manual or an experienced woodworker first.
Keep reading
Cut Lists, Materials Lists and Cutting Diagrams in Ted's Plans: What They Cover and How to Use ThemBefore you buy lumber for any plan, you want to know three things: what to buy, how to cut it, and…
Detailed Drawings and Exploded Joint Views in Ted's Plans: How to Read ThemDrawings are where a woodworking plan either saves you a wasted weekend or sets one up. This guide…
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