SCALE Structural Calculations 4+

Fitzroy Systems Ltd

Designed for iPad

    • Free
    • Offers In-App Purchases

iPad Screenshots


Free trial available, try all of SCALE for free for 2 weeks.

SCALE produces structural engineers' calculations and component details for the design of a variety of components such as beams, columns and slabs, using steel, concrete, masonry and timber. SCALE outputs pdf and docx files, consisting of a set of pages, neatly titled, dated and numbered, containing calculations and component details made to a standard suitable for submission to a checking authority.

“I use SCALE because it produces neatly composed calculation sheets which can easily be checked.”

SCALE incorporates a library of over 600 proforma calculations, which are accessed via in-app subscription. The content of this library is continually under review, proformas being added or modified as codes of practice develop and change. All proformas include a parallel set of calculations for Eurocodes and British Standards.

“I would like to express my thanks for the many years of use of your excellent design software which has made my life so much easier.”

SCALE includes LUCID and SPADE, 'expert systems’ which know about reinforced concrete, steelwork, timber and masonry detailing, and build the detail using the knowledge contained within their databases.

“I am self employed and use SCALE everyday for design. I have also used your LUCID automatic reinforcement detailing / bar schedule for ground beams and use the automatic steel connection detailing program. I have never had any queries on either of these from site.”

SCALE includes NL-STRESS for 2D/3D elastic analysis with linking between analysis and design, non-linear (plastic and stability) analysis, and numerous pre and post-processors for vehicle loads, guyed masts etc.

SCALE users produce over one million pages of structural calculations per year; SCALE has condensed print and summary options for saving paper.

Subscription Details.
• Subscribe to all SCALE, LUCID, SPADE and NL-STRESS proformas and data files, including both British Standards and Eurocodes, via auto-renewable in-app subscription.
• Payment will be charged to your iTunes Account at the end of your free trial, if offered, or at confirmation of purchase.
• Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
• Your account will be charged for renewal within 24-hours prior to the end of the current period, at the price shown below.
• Monthly auto-renewal £49.99 GBP inc VAT.
• Annual auto-renewal £299.99 GBP inc VAT.
• You can manage subscriptions and auto-renewal may be turned off by going to your Account Settings after purchase.

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What’s New

Version 7.04

Updates in SCALE 7.04:
• Built with the latest Xcode 14.2 and iPadOS 16.2 SDK.
• SCALE 7.04 now supports all iPads from iOS 11.2 onwards: all iPad Pros, all iPad Airs, iPad 5 onwards, and iPad Mini 2 onwards.
• SCALE 7.04 now supports all Macs with Apple Silicon, M1 and M2 onwards.

• When running on MacOS (Designed for iPad), the text is displayed to fit the full window, with no on-screen keyboard.

• Additional keyboard and mouse interactions have been added to make the graphical windows useable with keyboard and mouse for iPadOS and MacOS:
• In NL-GUI Draw Structure: to zoom in and out use the +/- keys or the mousewheel;
• to pan the view, click and drag in the view, or use the arrow keys.
• In TAPE: to zoom in and out, use the +/- keys or the mousewheel;
• to pan the view, click and drag in the view, or use the arrow keys.
• to pan a selection, click and drag on a selected item.
• In NL-VIEW: to zoom in and out, use the +/- keys or the mousewheel;
• to pan the model, click and drag, or use the arrow keys.
• to rotate the model, ctrl+left click drag or left+right click drag.

• Added new high strength steel grades S460, and S420 where appropriate, to proformas sc350, sc358, sc359, sc360, sc387, sc392, sc396, sc407, sc409, sc416, sc418, sc419, sc421, sc422, sc423, sc424, sc425, sc426, sc427, sc444, sc452, sc453, sc455, sc460, sc462, sc466, sc467, sc470, sc474, sc476, sc477, sc478, sc479, sc480, sc481, sc482, sc483, sc484, sc485, sc486, sc487, sc488, sc489, sc490, sc491, sc492, sc493, sc494, sc495, sc498, sc499.

• New SPADE proforma: sp710 Typical kerb details.

• New SPADE proforma: sp720 Typical car park details.

• SPADE: removed duplicate staplt calls, which caused subsequent page numbers to increment by 2, for sp204, sp459, sp641, sp642, sp643, sp644, sp645, sp646, sp647, sp648, sp615, sp710, sp720.

• Modified for bug in proforma 273.

• Fixed NL-GUI Draw Structure crashing when fed Member Incidences like 3 THRU 3 RANGE 3 4 3 4 from

• NL-VIEW screenshot, the "Key: DS" text has been changed from white to black.

• Updated parametric files sc350.prm, sc477.prm, sc478.prm, sc480.prm, sc481.prm, sc484.prm, sc485.prm, sc493.prm, sc499.prm.

• Added parametric files sp710.prm, sp720.prm.

App Privacy

The developer, Fitzroy Systems Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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