BuildCalc - Advanced Construction Calculator

BuildCalc - Advanced Construction Calculator application logo

What if you could take the best construction calculator and fix it. That’s right ... you love it, it has served you well, and you stand by it ... but could it do more? Could it be easier to use?

After testing by pros from around the world, BuildCalc is ready to give you more - more function and more answers with less complexity, less hassle, and less confusion.


• Advanced Baluster Function: Complete layout of railing and staircase balusters with less guess work - and with all the flexibility you need for every custom job.
• Advanced Stair function: Stair layouts for professional results - including dimensioned drawings of your Stringer, Stringer Installation, and Finished Staircase. And you can email a PDF of these drawings right from BuildCalc so you can print them or share them.
• Fence Function: Give BuildCalc a fence row length and it will tell you how many posts, rails, pickets, and or panels you need.
• Interactive Functions: The Stair, Baluster, Compound Miter, and Rafter functions are now fully interactive. Want to change input values? Change the Run? Switch between Regular and Irregular Hip Roof analysis? You can do this and your results will be updated automatically - without you needing to remember what key to press.


• You are no longer tied down to: only one brick, block or tile size for the masonry function; a fixed number of drywall sheet sizes; only one footer cross sectional area; or one size of shingles and sheathing. If you don’t see the size you want, you can add as many as you need. And for area input, you can store your custom sizes in Length x Width format, so you won’t have to do mental gymnastics to figure out what was the dimensions for that last size you stored.
• Want to cut your hip roof rafter using a miter saw ... or a circular saw using a hand-held protractor? With a tap of a button, BuildCalc will automatically switch between Miter Saw and Protractor results. BuildCalc can do this for Compound Miters, too.
• Sheathing Angles, Purlin Angles, Gable Area, Backing Angles, Plan Angles, Rough vs. Finished Stair Layout Dimensions, Stringer Throat, Stringer installation dimensions ... and a lot more not found on other construction calculators.


• Tired of having to press and press and press buttons to get the results of a calculation? BuildCalc puts an end to this. For all advanced functions, you get ALL of your results in list form with just one or two key taps.
• And, rather than having to write down those results, all advanced functions allow you to save your results - as many times as you want with a label you choose - so you can recall the complete results at your convenience. Now you can do a calculation today and two days, two weeks or two years later, it is there for you.
• Less “quirks”. Have you been annoyed by arcane key stroke sequences on other construction calculators? We are too. BuildCalc 2.1 streamlined the keystrokes to do a better job of giving you less “errors” and more results. Don’t remember what you have to enter before a Hip Rafter or Stair calculation? Well, now you don’t have to. BuildCalc will provide you with a check list of inputs and on-the-spot help to get it right.
• Drywall and Masonry “Room Mode”: If you have stored a Length, Width and Height for a room, BuildCalc will give you the Drywall or Masonry required for the walls and the ceiling / floor - with only a tap of the Drywall or Masonry button. No more pondering over complex key sequences ... it just works.


Get more results than you ever could before - including dimensioned Stringer, Stringer Installation and Finished Staircase Drawings. Drawings can then be emailed to others or printed at your convenience. Email us and we'll send you an example!

BuildCalc - Advanced Construction Calculator App Description & Overview

The applications BuildCalc - Advanced Construction Calculator was published in the category Utilities on 2009-10-14 and was developed by 42nd Parallel. The file size is 16.08 MB. The current version is 2.4.5 and works well on 9.0 and high ios versions.

- volume control works if the device is muted or not;
- volume control has an additional level (was 4, now 5 levels)
- volume control does not work on advanced functions
- static background noise can be heard on some devices in some conditions

BuildCalc - Advanced Construction Calculator App Tips, Tricks and Rules

BuildCalc - Advanced Construction Calculator Reviews

Thom Gifford

Amazing  Thom Gifford  5 star

This is one of the best Apps I've ever bought. Downloaded it "in the heat of battle" when I needed to lay out several handrails for balusters. Easy to use, perfect results, saved a days work the first day. Buy it, now!


Best construction calc ever!  [email protected]#$%  5 star



Little noises  gueropacheco  3 star

It's all good except that I hear a little noise in the upper speaker even if I tap mute button


This app developer is deaf  grmduh  4 star

THANK YOU FOR FIXING THIS PROBLEM. I use this app many, many times a day. Mr Deaf, can you hear me! Why are you so stubborn? The app developer is deaf since he has the clicking of the keys so loud and he is deaf to the reviews about this. The loud and very annoying key click is many times louder than the iOS default click. No one around me wants to hear the annoying clicking of the keys and I should not have to turn the volume up and down because of this ridiculous app. Also, this app has had many updates in the last month due to so many bugs, but this developer can't correct the loud clicking of the keys.


Unintuitive  Jackmontana53  2 star

Very odd organization to calculations. Footing calculations are far from clear. You need to spend lots of time figuring it out. Good luck remembering how it works next time. I would recommend the developer provide figures for each calculation so the user does not need to relearn every time they want to do a calculation.


Very helpful  😠😠👿  5 star



Clear Winner  crmoore  5 star

I purchased several other construction calculators as a test and this is the clear winner. It is well thought out with professional type features. Hopefully I can post more in the future. PS - The key clicks on this (and other construction calculators) are loud which is helpful for working in the field, but there is a mute button right on the display screen if that's not desired.


The Best 100%  Joaquín7  5 star

Love it.....😀

Nick Driscoll

The building calculator  Nick Driscoll  5 star

Far and away the best building calculator I have ever used. The advanced features for laying out ballisturs, cutting stair treads and calculating material set it apart from anything else out there. I only wish that more people would download it so that the developer would have a reason to update it more often!


Build calc is by far the best  Njcarpenter91  5 star

Hello my name is Luke P, I'm a professional framer out of NJ. I Been using Buildcalc for about a year now and I gotta say it's absolutely amazing! It gives you everything you need in roof framing- I do no most of all the formulas to be done without the calculator, but this really does save time in the field! Thanks Buildcalc!


The best gets even better!  rmryerso  5 star

The new advanced features are fantastic! The dev has been hard at work making this the best construction calculator on the planet and it shows. Can't ask for better support from a developer - 42nd Parallel is the gold standard. This app keeps getting better and better. Hands down, this is the best construction calculator available today; it's super intuitive. This isn't an imitation. This is better than any Construction Master offering. Better than InchCalc. If you have a need to do any sort of construction math, stop wasting time and money. Buy BuildCalc today!


Buildcalc is the BEST  Jimg7  5 star

Aside from being an outstanding app, the customer service is amazing. Not only did I get a response, but a personal note as well. Great job & thanks for the support.


Version 2 puts BC back in the game  jdubiner  4 star

BuildCalc 2.0 is great! major UI enhancements over 1.3.2. Well worth $20... Check out the new stairs UI - it even emails PDF's. Dev has obviously been hard at work on this upgrade, and it shows!

Appy 1

Fantastic App and great customer support!!!  Appy 1  5 star

Really needed a new construction calculator, and like everyone else, couldn't stomach paying another $100 for a new one. Well just downloaded this app and was in the middle of pricing a job, when I couldn't access a certain command! I sent an email to customer support, and to my surprise they emailed me back within about 10mins! Couldn't believe it!!! After being let down in the past by other App companies customer support, its so nice to actually recieve great customer care! Plus, it really is a bloody good App! Well done!


#1  Dr33m  5 star

#1 construction calculator ever made


Great app  nathanbuck  5 star

Love this app use it every day. Great for fig concrete angles and everything under th sun


THE BEST  EDDIE 092  5 star



How great is this  ltlwing  5 star

I'm a pro carpenter, have been for many years, I have the C.MIV and the C.M Pro. This is all that and more, for twenty dollars! You don't get upgrades on those other calculators and if you lose it's gone, $80. This is great that it follows the user and not the hardware. I used this app on the job for the first time yesterday cutting in a mixed pitch roof, what a joy. I carry my phone, in a otterbox case, anyways what a great way to use it! I love my phone and I love this app!

Roof cutter

5 star app!!!  Roof cutter  4 star

I am a carpenter and I cut roofs, when there is need for a conventional roof. I have a construction master calculator and this app is just like the real thing. For those who need instruction, if you press a key and hold it a new screen will pop up and give you a brief explination. O must say again if your working on a conventional roof this is a 5 star app. I wish there was a greater need for conventional roofs as apposed to trusses.

Flyin low

Awesome  Flyin low  5 star

This app is the bomb. I have had several construction master pro's and this takes the cake. Two thumbs up to the ones who built this app.

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