Questions tagged [truss]

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Solutions to increase roof insulation with raised tie trusses

My house has raised tie trusses: This means that on the second floor the central part of the ceiling is flat, but near the long walls it is slanted. The trusses are 2x6 timber construction, meaning ...
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Drilled thru end of web floor truss

Attempting to run conduit from exterior of house for a hottub. After drilling I noticed I went thru the vertical end of a open end floor truss and far end triangulation. 1 inch hole. This was not the ...
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Can I make up the depth of a roof truss with a separate timber?

Replacing rotten roof trusses that were originally 320mm Scots Pine timbers. The roof originally had to support concrete tiles which were heavy, it will now be supporting a lighter tin roof. The ...
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1 vote
2 answers
176 views

How do I remove the bottom chord from a shed roof, the right way?

I've got a 16' (length) x 10' (width) saltbox-style shed that I'd like to convert into an office. The roof is supported by simple triangle trusses of 2 x 4's. Each of the trusses is cantilevered out ...
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3 votes
2 answers
79 views

Cutting supports in attached garage firewall

I have an attached garage with no living quarters above the ceiling. The firewall separating the attic from the garage is finished with drywall up to the roof line. This drywall seems to be mounted to ...
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3 votes
2 answers
196 views

Is this Scissor Truss for cathedral ceiling with drop-down for typical 8' ceiling load bearing in the middle?

The attached image shows a Scissor truss that is a bit odd. Notice the peak of the ceiling below does not align with the peak of the roof above. This truss does span from the two exterior walls of ...
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1 answer
160 views

Max span on 2x4 truss

I am refitting an old shop above my garage to be an ADU. It was built in the late 70s / early 80s, and the truss system is 2x4 trusses on 22" centers. The trusses are professionally built & ...
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2 votes
1 answer
192 views

Can I remove a rafter tie from my shed roof framing for better access?

I have a 10x16 shed that use for a woodshop and am planning to remodel it soon. I currently store some lumber in the roof trusses and would like to make it a little easier to do that in the future by ...
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1 answer
132 views

Reinforcing Truss-based Garage Ceiling

I'm currently in the process of insulating/drywalling my attached garage. It is about 25' x 20' with Fink style trusses. The truss bottom chords are spliced with plywood sheets on either side. Rather ...
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1 answer
79 views

Changing roof truss diagonal to vertical

I've got a roof with a few diagonal trusses like the blue one in this diagramme: I want to remove the BLUE truss and replace it with the RED truss, because we're adding some loft storage and ...
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2 answers
403 views

How to fix sagging timber roof trusses?

This is a follow up from a previous question: (Is this a sign of my roof trusses sagging?) Do you know how to use ratchet ties (or some other method) to fix sagging roof trusses? Here is an image of a ...
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4 votes
1 answer
937 views

Mold or rust stain on roof truss

Paid a visit to my attic earlier today to see if there was any winter damage. Looking all good except for a small piece of truss that has a black stain on it (see picture). I would have said mold ...
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1 vote
1 answer
186 views

Basic truss design for outbuilding

I am building a small outbuilding (wood-fired sauna) that is 8 feet by 16 feet. The design is based off a friend who made a similar structure, just four feet shorter. For the roof trusses, he used ...
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3 answers
134 views

Will my ceiling hold an over the popcorn solution?

I am looking for a solution to my popcorn without removing it. I am thinking of using MDF ship-lap then creating small depth coffers. My issue is that I don't know how much weight my ceiling can hold. ...
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1 vote
2 answers
235 views

Any possible fixes for separated mending plate in truss?

Floor truss in crawlspace, holding up first floor. 14” depth. About 20 ft span is my estimate, with about half of it sitting on concrete block, acting as rim joist. On the spanned portion, there’s a ...
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1 answer
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Can you space trusses more than 24" on center if you use 4x4s or 6x6s for the lumber instead of 2x6s?

I'm designing a cabin that will have exposed trusses over the living room / kitchen area. I have a company that will design the trusses for me, but I am expected to provide some amount of indication ...
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1 answer
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Can I mount an LED light bar to a truss web?

I have 4 foot long LED light bars that i would like to mount in my crawl space. I’ve removed the sagging underfloor insulation and am doing wall insulation instead, so the truss bays are empty. ...
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9 votes
3 answers
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Accidentally cut the bottom chord of truss

Accidentally cut the bottom chord of truss. It happens on the corner of the stud and not fully cut through as picture showing. If I would like to fix it, which contractor should I contact? And would ...
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1 vote
2 answers
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Adding strongback bracing to an existing floor truss

I just bought a house built around 2006. The floor has a ~32' span supported by 24" deep trusses on 19.2" centers. The trusses do not have strongback bracing installed (well there is a 2x4 ...
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7 votes
3 answers
2k views

How to frame for a drywall ceiling with 8 feet between trusses?

I have a post frame building that was recently constructed where the post and joists have 8 foot on center spacing. The building is 38' x 54' and we had a 2nd floor built on the North end of it which ...
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1 vote
1 answer
3k views

Sistering 2x8s to 2x4 truss system for vaulted ceiling?

The Question (see pic below): Can I safely sister 2x8s to a 2x4 king post truss/open rafter system to achieve an insulated open ceiling/vaulted design. The Details: I have a garage that is 18 feet ...
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Sagging floor cause for concern?

In a townhouse where my second floor sags in all kinds of directions - do i need to have it checked out/fixed, and by whom? Rough estimates: Age: 34 years old Width of unit: 21ft Second floor held up ...
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0 votes
1 answer
616 views

Convert timber roof rafters to trusses?

We want to open up the floor plan of our house by removing the center wall. The roof is 4:12 pitch with 3x8 timber rafters 4' on center, a 3x10 timber ridge beam, and 2x8 tongue and groove boards ...
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3 votes
1 answer
516 views

Repairing broken roof struts

I discovered two broken roof struts in my attic, adjacent to each other on the same strut. See the pictures. For perspective, you can see a yellow-gloved hand in the first picture. It's resting on the ...
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1 vote
0 answers
392 views

Garage Ceiling Truss Load and Distribution Options for Overhead Storage

Last summer I hung two 4'x8' overhead ceiling racks by using 4x4's across multiple trusses. The only point that actually share a truss are the mounts closes to the wall. As janky as this is, It's ...
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1 vote
2 answers
502 views

Had to shim my double top plate -- how should I secure the trusses?

I am building a new detached garage, and one corner of the footing was about 1.5" low. To address this, I installed shims between the two top plates, as shown below. The size of the shim increases ...
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1 vote
2 answers
312 views

Wanting to add storage over garage

So I have picked up woodworking as a hobby and find myself becoming pressed for space in the garage. I looked in the attic and this is the layout: Is it possible to remove these angled supports and ...
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6 votes
3 answers
1k views

Can I partially suspend an angled climbing wall from my garage trusses?

I'm planning on building a home climbing wall in my garage. I'm wondering about the structural integrity of attaching it to the trusses. They are 2x4s, 24" apart, and span about 30 feet. This image ...
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1 vote
0 answers
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What are Safe Allowances for Drilling into Rafters?

I plan to drill a hole for a screw into one of my (oversized) rafters near its bottom end where it meets the wall, into the narrow face pointing in towards the house. It will hold a negligible amount ...
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0 votes
1 answer
460 views

Removing wall under truss

I am wanting to turn this wall into a pony wall to open up my kitchen. It is directly under a truss. It contained a pocket door and there is no floor joist running under it or no other load bearing ...
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47 views

Garage gable fan through truss

I'm looking to install a ventilation fan in my garage. I want to install it in the middle (mainly for looks) rather than having it offset to one side or the other. Am I OK to cut through the middle ...
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0 votes
1 answer
477 views

Adding ceiling joists to workshop shed

I'm adding a 10x10 (100 ft sq) shed workshop to my yard. Walls are 2x4, 16"OC. Rafters are 2x6, 24"OC. I will be insulating the shed and adding climate control so I can use it year round. I'm in ...
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0 votes
2 answers
2k views

How much stronger is a triangle-shaped vs. A-shaped truss? Max snow load comparison?

I'm on a property in which there is a garden shed and its roof collapsed yesterday because of heavier than normal snow that accumulated on it over the past few months and it looks like yesterday was ...
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2 votes
3 answers
2k views

Does this truss have two or three bearing points?

Part of my roof is made from studio trusses as shown in the picture. I'm trying to determine if any of the load from these trusses is borne by the highlighted wall. The wall is built with 2x6s, but ...
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2 votes
1 answer
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Why are some of my trusses nailed to interior wall top plate?

I am hoping someone can answer why I have multiple trusses nailed into the top plate of a small interior wall in my home. In the first image, I have highlighted in red where the trusses actually touch,...
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1 vote
3 answers
211 views

Is it safe to store a wheel/tire set in my garage loft area?

I'm not sure how much they weigh. I assume around 50lbs a piece. Here is the area I will store them in: Any specific way I should arrange the load or am I worrying too much?
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1 vote
1 answer
13k views

How can I safely reinforce my garage trusses to support ceiling drywall and insulation?

Recently bought a home that came with a double detached garage. The garage is older, perhaps from the 70s? It uses what looks like an early adoption of a truss framed roof. The trusses look like they ...
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1 vote
1 answer
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How to build a 24' roof truss?

I want to span a 24' shed with a gambrel roof to create an operational space of 16' and I want a design that can be build onsite and installed without a helper. I'm having an impossible time figuring ...
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0 votes
2 answers
2k views

Cracked rafter fix and loose truss plates

I appear to have a crack on my drywall where it meets the ceiling in my bedroom. The crack is spreading a bit. I went in the attic and noticed that this rafter beam is cracked and might be causing ...
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0 votes
2 answers
8k views

Maximum span/strength of Howe Truss

I'm considering removing some walls in the center of a home with Howe Trusses (see pic). I know trusses are normally designed to transfer all the load to the exterior walls, but what concerns me is ...
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1 vote
1 answer
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My basement ceiling\ground floor has a "truss" system. How to hang things?

It looks like this from what I can see: http://andersontrussnc.com/floor-trusses/ So - obviously I can't be drilling an eye bolt into anything I see here. I've heard people talk about sistering ...
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4 votes
1 answer
446 views

Previous home owner had hole drilled for shower drain through the metal web joist in the floor. Is this structurally ok?

It was approved by the town inspector, but maybe they missed it. I would like to know if this is ok structurally.
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0 votes
0 answers
104 views

General procedure for replacing load-bearing wall with truss on top

What is a general procedure for replacement of an external load bearing wall wherin the wall is bearing the load of the upstairs floor joists, but also has roof trusts which land directly onto the ...
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3 votes
2 answers
3k views

Repairing a notched rafter in a truss roof

I had a guy install a whirlybird-type vent in my roof.. those non-powered turbine types. Upon cutting the hole to install the vent, he accidentally cut a notch in the rafter: ). There are two ...
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1 vote
2 answers
225 views

How to HVAC service 3 floors without ducts in roof?

This is a little simplified, but not too much. I have architects and plans for a a two story house plus a basement. The house is about 80 feet by 20 feet with all stories extending the whole ...
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2 votes
1 answer
3k views

Modifying bottom chord of roof truss to accomodate new AC

We just had a new AC air handler installed, and it's much taller than the old one. Due to an error on my part, it's actually too tall for the space. And it is deeper than the space between the trusses....
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