Shop Partition Wall Construction Questions

  • Advertise with us

« back to Focus on the Workspace forum

Forum topic by playsk8r posted 02-15-2013 12:07 AM 1327 views 0 times favorited 6 replies Add to Favorites Watch
View playsk8r's profile


21 posts in 2034 days

02-15-2013 12:07 AM

I am building a new wall to partition my shop. THe area that I wan to partition from the basement is 11’(roughly) wide. Normally, I would have just proceeded with the construction and have been done two weeks ago. But there’s a problem. About 8 feet down the wall area, on the underside of an I beam there the main duct from my furnace. It gets extremely hot, and putting raw wood beside it wouldn’t be a good idea. I have two thoughts on how to proceed.

Idea 1: I just build 1/2 of the wall, stopping about three inches away from the duct, and use some sort of curtain like material for the rest of the wall

Idea 2: Use some sort of insulating material around the ductwork and then build the wall like normal, framing around the main duct

Thanks in advance for any help you guys could give me

6 replies so far

View AandCstyle's profile


3052 posts in 2256 days

#1 posted 02-15-2013 12:50 AM

Disclaimer: I am not a wood scientist or a firefighter, nor did I stay in a Holiday Inn last night. lol

However, according to the info provided in this article (scroll down to the section titled “Ignition Studies”) you will see that the lowest ignition point was 315*.

I don’t know how warm you keep your house, but hopefully, the info presented will be of some use to you.

-- Art

View Don W's profile

Don W

18715 posts in 2566 days

#2 posted 02-15-2013 12:54 AM

Your description leaves a lot open to interpretation, but why not frame around it, staying a foot or so away, then close it in with sheet metal like you were putting. A stove pipe through a wall.

if that doesn’t make sense, take a picture for use.

-- - Collecting is an investment in the past, and the future.

View Kazooman's profile


1006 posts in 1951 days

#3 posted 02-15-2013 01:29 AM

If by “main duct” you are referring to the hot air supply to the house, then AandC is on the right track. The temperatures are not as hot as you might think. You can easily measure them to be certain. If by “main duct” you mean the chimney exhaust, then it is a different story. You could get a section of the sort of pipe they use for chimney flues on wood burning stoves. The kind with two concentric pipes with an air gap in between. They are made to pass through wooden construction with fireplace temperature exhaust passing through.

Or as an alternative you could just wrap the existing pipe with about 50 pounds of asbestos. That’s a classic solution from days gone by.

View playsk8r's profile


21 posts in 2034 days

#4 posted 02-15-2013 02:10 AM

Alright, clearly I need to clarify. This is the main duct coming from the furnace, so yes, it is the hot air supply to the house. I think that it’s about 65-75 c(I’m in canada, sorry). Although this really isn’t that hot, I’m just a tad over concerned about going around the duct. I think that I will just fame around the pipe leaving about 3-4 inches on each side, and about 7 inches of clearance below.

Here’s a photo

View Don W's profile

Don W

18715 posts in 2566 days

#5 posted 02-15-2013 03:13 AM

What you’re planning is fine.

-- - Collecting is an investment in the past, and the future.

View GerryB's profile


69 posts in 2581 days

#6 posted 02-15-2013 04:31 AM

Do yourself a favor and deal in reality, not by guess & by golly! Get a cheap thermometer & find out what the surface temp is! Once you find that, then procede to build, knowing the facts!

-- The pursuit of excellence is gratifying and healthy. The pursuit of perfection is frustrating, neurotic, and a terrible waste of time. Edwin Bliss

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics