Mix Chapter

Mix Chapter

Free concrete takeoff from your plans, no account

Coming soonLaunches Monday, Nov 30 · in 28 days

Operations & Logistics

What is Mix Chapter?

Mix Chapter gives concrete contractors, estimators and chapter members a free concrete takeoff from their own plans. Send the full plan set as a vector PDF, DWG or DXF, add your work email and click the start link. The takeoff starts only after that click, so nothing runs on a typo.

What comes back is a private link and a quantities CSV. The link shows concrete by element, rebar, and block and grout counts, each one shown on your own drawing with the math behind it. Tap a row to see the crop of the sheet it came from, or press Play 3D to watch the job build up piece by piece. The scale is checked against the drawing's own dimensions, and open questions go to the engineer before anyone books a truck. A material cost estimate from typical local prices is included. It is an estimate, not a bid: verify before ordering. Most takeoffs are ready within a few hours.

Mix Chapter also offers free ACI practice exams in English and Spanish: Field Testing Grade I, Strength Testing, Flatwork Finisher, Aggregate Testing and Special Inspector, with instant scoring, ASTM-referenced explanations, unlimited retakes and no sign-up.

Chapter software is coming soon: member, event, certification and compliance tools for ACI, ICRI, PCI, PCA and ASCC chapters, including digital wallet cards. Pricing will be announced at launch, and the waitlist is open.

Mix Chapter is not affiliated with, endorsed by, or sponsored by the American Concrete Institute (ACI).

PricingFree

Publisher

Joined Oct 2026

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FounderPlaybooks.

What other founders did to grow.

2722 dispatches from hundreds of founders, pulled from the week's best podcasts.

Mindset
I treat my writing like an athlete and I train every single day and I at the end of every year I'm I'm constant asking myself the question like okay my my right hand is more dominant than my left hand what do I have to do to cross train and I'll I'll put myself through exercises... reading the a page or two of the thesaurus every morning or I'll read books in genres that I have absolutely no real interest in

Train writing like a pro athlete — daily reps and deliberate cross-training

Most creators write to publish — pure output. Athletes train to compete — deliberate practice across weaknesses. Apply the athletic model: daily writing reps, plus weird targeted drills nobody else does. Read genres you hate to study foreign voice patterns; highlight a single book in three colors (voice / plot / structure) to reverse-engineer construction; read a thesaurus page every morning. The unsexy cross-training is what compounds into a voice nobody else has.

Launching
Make sure all these five steps are going on at the same week — that's very important, so you get into the main trending feed. Once you are there, you will see your star count rocketing very fast.

Fire every OSS channel in one coordinated week to crack GitHub Trending

The whole open-source launch strategy hinges on concentrating traffic into a single week to crack the GitHub Trending feed. Pre-register on Hacker News, Reddit, Lemmy, Dev.to, Medium, and Hashnode beforehand, then fire articles, a Show HN, an r/selfhosted post, and personal channels simultaneously.

There's a play for whatever you're stuck on.

Read all 2722 playbooks