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Special offer!
From 08/17/2019 to 09/17/2019 we double the amount of payment!
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Sunday, August 18, 2019
Changing the order of charging the subscription fee
Now, the subscription fee is charged every 30 days after activation, and not on the 1st day of every month.
Saturday, August 17, 2019
Special offer x2!
If you pay from August 17 to September 17, 2019, your account will be credited with twice as much money!
Saturday, August 10, 2019
Fixed issue with card payments
We fixed an error when paying by bank cards and electronic money, in which an error message appeared after payment
Sunday, August 4, 2019
Attention! Server migration august 8th!
On August 8, from 21 Moscow time until the end of work (approximately 6 am), our site will not work!
Saturday, August 3, 2019
The correction in the copy settings
Now work with copying settings has become more obvious to users!
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Professional constraction calculator

Roof calculation system
Online roof calculation system
Professional system for calculating the roof by splitting the roof on the slopes. Allows you to count the roof of any complexity.
Siding and Facade calculation system
Siding and facade calculation system online
Professional system for the calculation of facades (siding, decking, panels, etc.). Allows you to count any facades breaking them into separate planes.
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