Span Calc

Span calculator using NDS®

Разработчик: American Wood Council
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Описание

The American Wood Council (AWC) Span Calculator for Wood Joists and Rafters (Span Calc) performs calculations for all species and grades of commercially available softwood and hardwood lumber as found in the 2021 National Design Specification® (NDS®) for Wood Construction. Joists and rafter spans for common loading conditions can be determined. A span options calculator allows selection of multiple species and grades for comparison purposes.
Supported by the Softwood Lumber Board.
Maximum horizontal spans for joists and rafters are calculated based on the following assumptions and conditions:
· Joists and rafters are oriented to support vertical loads applied to the narrow (1.5 in. thick) face of the member, resulting in strong-axis bending.
· At least three joists or rafters are installed parallel to one another and spaced not more than 24 inches on-center, with properly designed sheathing attached on the top (compression) edge of each joist or rafter.
· Joists and rafters are single-span with adequate structural support at each end. The Span Calculator does not address cantilevered joists and rafters, multiple-span joists and rafters, or spliced joists and rafters.
· For joists and rafters, most building codes specify a minimum bearing length of 1.5 inches on wood or metal and not less than 3 inches on masonry or concrete. These minimum bearing lengths are to be used in the absence of calculated bearing lengths. Consult the local building code for specific requirements.
· Joists and rafters carry only combinations of dead load plus live load (D + L), dead load plus snow load (D + S), or dead load plus roof live load (D + Lr). The Span Calculator does not address wind load or seismic load.
· Buildings in regions with ground snow loads greater than 70 psf should not use the prescriptive provisions of the governing building code without approval of the authority having jurisdiction. Buildings in these high snow zones should be designed in accordance with accepted engineering practice.
While every effort has been made to insure the accuracy of the information presented, and special effort has been made to assure that the information reflects the state-of-the-art, neither the American Wood Council nor its members assume any responsibility for any particular design prepared from this Span Calculator application. Those using this Span Calculator assume all liability from its use.
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Span Calc Частые Вопросы

  • Приложение Span Calc бесплатное?

    Да, Span Calc полностью бесплатное и не содержит встроенных покупок или подписок.

  • Является ли Span Calc фейковым или мошенническим?

    ⚠️ Приложение Span Calc имеет низкие оценки и отрицательные отзывы. Пользователи, похоже, недовольны его качеством или функциями.

    Спасибо за ваш голос

  • Сколько стоит Span Calc?

    Приложение Span Calc бесплатное.

  • Сколько зарабатывает Span Calc?

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Span Calc Отзывы Пользователей

Fails to run

Joe Miramonti on

Соединенные Штаты

Fails to run on iOS 15.8.2 (iPhone 6s+) stopping on "Generating views…".

Paul Catalano

Pcat60 on

Соединенные Штаты

Span calculator has worked like charm for years but it recent crashed and needs to fixed 04-17-24 Ben worked diligently to repair the app and now it back to functional and we couldn’t be happier 04-20-24

Stopped working

pweber17 on

Соединенные Штаты

New update messed up app

Unusable since last upgrade

Cabana a Boy on

Соединенные Штаты

I have not been able to use the app this week. Something in the upgrade causes it to lock up.

Latest update

Why update???? on

Соединенные Штаты

After the latest update now when I try to select anything it locks up. Worked just fine before.

Great App!

najksch glahakcj on

Соединенные Штаты

Very useful for construction estimating job! However dropdowns do not work with the new update. I haven’t been able to use the app for the last couple days.

Memory eater

VPofQC on

Соединенные Штаты

Why does a wood span calculator require 150MB? That’s ridiculous.

Very Useful!

Trout_Angler5391 on

Соединенные Штаты

It has become a great tool for quick and accurate adjustments in design!

Needs Update

Serendipity24 on

Соединенные Штаты

Apps hasn't been updated since 2015. When emailing or printing the PRINT or CANCEL icon are not visible. They are there but not visible. Surprised it hasn't been fixed or even commented on.

Good calculator.

ffearless on

Соединенные Штаты

It works well for the limited things it does.

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Span Calc Установки

30дн.

Span Calc Доход

30дн.

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