# Midspan blocking

**URL:** <https://blueprint.calcs.com/t/midspan-blocking/382>\
**Category:** Ask for Help\
**Created:** [July 3, 2024, 7:46pm UTC](https://blueprint.calcs.com/t/midspan-blocking/382 "2024-07-03T19:46:55Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![artechco](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@artechco](https://blueprint.calcs.com/u/artechco)\
**Post date:** [July 3, 2024, 7:46pm UTC](https://blueprint.calcs.com/t/midspan-blocking/382/1 "2024-07-03T19:46:55Z")

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how do I add a midspan blocking on a ceiling joist calcs?

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**Author:** ![tara.memarian](https://yyz1.discourse-cdn.com/flex029/user_avatar/blueprint.calcs.com/tara.memarian/32/43_2.png) [@tara.memarian](https://blueprint.calcs.com/u/tara.memarian)\
**Post date:** [July 4, 2024, 7:44pm UTC](https://blueprint.calcs.com/t/midspan-blocking/382/2 "2024-07-04T19:44:15Z")

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Thanks for your message! I believe you can model that by entering the midspan blocking as a top or bottom brace supports in your support and brace table. as shown below.

 ![Screenshot 2024-07-04 at 3.42.56 PM](https://canada1.discourse-cdn.com/flex029/uploads/blueprint1/original/1X/d01b1e6dc56ee3eb2c19907a69f0f9021df0143f.png)  
r

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**Author:** ![artechco](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@artechco](https://blueprint.calcs.com/u/artechco)\
**Post date:** [July 11, 2024, 11:21pm UTC](https://blueprint.calcs.com/t/midspan-blocking/382/3 "2024-07-11T23:21:02Z")

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Hi Tara,

It didn’t work I still getting an error message.

Shear Utilization 𝑉/𝑉′=V/V =85.5 lb / 11.2 lb 760%

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**Author:** ![artechco](https://avatars.discourse-cdn.com/v4/letter/a/43a26b/32.png) [@artechco](https://blueprint.calcs.com/u/artechco)\
**Post date:** [July 11, 2024, 11:22pm UTC](https://blueprint.calcs.com/t/midspan-blocking/382/4 "2024-07-11T23:22:39Z")

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> [@Midspan blocking](https://blueprint.calcs.com/t/midspan-blocking/382/3):
>
> Hi Tara, It didn’t work I still getting an error message. Shear Utilization 𝑉/𝑉′=V/V =85.5 lb / 11.2 lb 760%

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**Author:** ![lgerin](https://yyz1.discourse-cdn.com/flex029/user_avatar/blueprint.calcs.com/lgerin/32/35_2.png) [@lgerin](https://blueprint.calcs.com/u/lgerin)\
**Post date:** [July 17, 2024, 6:32pm UTC](https://blueprint.calcs.com/t/midspan-blocking/382/5 "2024-07-17T18:32:58Z")

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Hey @artecho I think we missed your reply on this! Sorry about that. It looks like your beam is failing in shear. However, the shear loads and capacities seem really low (11 lb) here so I’m confused as to what’s going on. If you can email us a link to your calculation at [help@clearcalcs.com](mailto:help@clearcalcs.com) we’ll be happy to take a closer look.