Framing A Cathedral Ceiling | Rafter Overview |MY DIY 

Excellent job, I’m in the UK and always wondered how you did things like cathedral ceilings in the USA so know after watching your video it explains it all, you really really did a fantastic job and great explanation, thanks man !

Wow 2x12. Awesome!!!! Looks great.

The not so typical birds mouth rafter cut could split on the inside even though the rafters are oversized. I suggest driving one or two 4.5" to 6" Simpson truss screws in that area to avoid splitting. It looks like that you had to match the existing eaves, a reason for the deep birds-mouth cut. You did show a few things to shed light on my sections and details.

Your craft is top marks sir.

I am retired carpenter...Love the idea of no joists And I kinda get your explanation of rafters bearing half the load and wall bearing half the weight vertically..Difference is for me is my span on walls is 18' and still would not use 12" joists, prob 2x8 would work for me on 16" ctrs

Great idea i think im going to use it on my coop

great job mate 👍 bit scary how many people in these comments are willing to trust an engineer that they arent paying and arent insured by! planning on something similar myself... 30 foot span, 12 foot long steel flat bar, sandwiched by 2 timbers to stop it buckling (flitched beam). will be a pain to lift up!

Nice work man!

Excellent exsplaination

Looking at building a detached for a golf simulator room and I need lots of clearance on the ceiling. This looks like a great solution

awesome work man!! loved the video and your detailed explanation!! keep up the great work!

I have some questions. I'm adding a 14x16 addition off my gable end of existing house. Gonna do a cathedral...

I think I’ll need to do this same thing for the second floor of my garage.

Could you show us your structural calculations for the roof please. Can you include tencile limits on your nails?

I’d be much happier with the occasional joist but then I haven’t done the calculations. Lack of joists makes for wasted space with a cathedral roof. Also heating or cooling a lot of extra air to no purpose. Those posts at either end are taking a lot of compression from some very heavy Timbers and whatever the roof is made of. Interesting video to show how it’s done. In cathedrals it improves the acoustics and gives an ambience. In a shed it loses purpose.

Awesome job explaining sir!

Nice work

Great job sir

... Nice Work ! ...

Awesome knowledge, skill and craftsmanship! Why did you inside bird mouth those rafters? It makes sense to me, I guess it's better than totally removing all the wood to let it sit flat? Are those rafters then notched? And not bird mouthed? Oh I see you did it for ceiling esthetics. Again, excellent foresight.

LVLs are great products but I was wondering if you have installed parallams in similar structural jobs ? Does one have an advantage over the other ? Either way, excellent work.

I want to do this in my garage the low height of the beams prevents me from installing a 2 post lift.

That reverse birds mouth is genius, I’ve never seen that in 5 years of building. Solves a lot of problems. What’s it called technically? Did the inspector have any issues with it?

Will a 2 ply 9 1/4” LVL header for French Doors 72” wide work to support a 6x6 post supporting a 2ply cathedral ceiling ridge beam 18’ long? I’m building a 16’x16’ screened vcovered porch over a 32’x16’ deck I built. In southwest Michigan… High Snow load (CS) Thank you in advance… I’ve tried researching the answer and can’t pin point it

Can cathedral ceiling be done on a 29ft , span.... 20' x 29'

Was this necessary to avoid collar ties? Tearing my roof off next year and was just going to do a ridge board. 8 pitch with a metal roof so snow load will be minimal

How do you measure spans to find out what size of rafters you need to use?

Late to the party - any structural advantage to adding a small horizantal below the LVL at the top or just cosmetic? I'm working on plans presently but thought of adding a small section of flat to run electrical and add drop lighting (figured it'd be easier to mount on a narrow flat strip down the middle of the ceiling than a slope and doesn't limit the lighting choices as much as a slope). Logically it seems likek it would just tie the two sides rafters together and perhaps limit some sheer?

Question on the Cathedral rafters. My entry door is dead center under the ridge. With a 12ft span can i use a header (size?) to hold up the ridge on that end?

Great framing! I do have a question - how will the drywall be installed in a perfect point if there’s the lvl beam in the middle and the rafters are going to it but not underneath it in a pointed shape? I’m asking because I have a similar ceiling and I’d like the drywall to be pointed with no flat part so I wanna make sure my framing is correct. Thanks! :)

Thanks for the video, I am looking to build a cathedral ceiling over the a room that is 16x16. On one end of the roof I have no problem placing a king post to hold up the ridge beam. However on the other side I am hoping to install a sliding door running across the width of the room and therefore would not have the flexibility to have add king post running all the way down to the foundation to support the other end of the ridge beam. Do you have any recommendations on work arounds? Possible to run a post down to the header and have the header support that weight? Thanks for your thoughts!

I don't like the birds mouth cutt... you might as well use 2x6 rafters with hangers & add a 2 x4 rip or a rip for insulation...

I’m not a professional, but watching here to learn. You lifted that ridge beam yourself by hand?

Hi, I'm designing a cathedral ceiling on a 64 wide by 40 deep garage/ apartment post frame on an ICF foundation with 6 inch SIP's on the outside of the walls and 8 inch SIP's on the top of the rafters. The garage is 40 wide by 40 deep and the attached apartment will be 24 wide by 40 deep. The ridge beam will be 64 feet but will have support at the wall that divides the shop from the apartment. What size of ridge beam should I use over the garage? I was thinking of using three custom king trusses in the garage portion out of glue lambs with 1/2" CNC power coated flat plate with bolts on all the joints rather than making it a timber frame style with the wood pegs. I would like the 8 inch thick SIP's to have a 3 ft. overhang but 2 1/2 would be OK. I was also thinking of making the ridge beam like a railroad truss side panel on a bridge. It would have an upper ridge beam and a lower ridge beam with diagonals and verticals between with something like a 3 1/2 to 4 ft. height on that ridge beam. My roof joist would be 6 by material about every 4 ft. Also, what height of roof joist should I need on a 12/ 10 pitch if I want to use 6 by material every about 4 ft.? Thanks!

Do you cut a bevel at the top of the subfacia to match the roof pitch?

Good video. Just wondering what size the beam is?

What is the maximum length of the lvl beam from side to side to securely support the rafters?

How can use rafters with lower width? Can decrease the span and use lower width rafters?

I’m building a cabin 22ft wide and my room going be like yours but 36 foot long open. You think 2 24inch lvls wood work

Is it allowed to drill holes through these roof rafters for electrical wiring?

Great work bro!!, im doing an exterior porch with vaulted ceiling, but is 30’ ft long, what could i use for the ridge?, should i add a support in the middle?

Wow

Great video. I’ve a question. Can I cut some ceiling joists to have a bigger space as I’m doing a mezzanine’s/lift conversion in a 6m x 6m room?

Did you do a raised heel rafter so you could edge insulation at the sill line

Hangers at the ridge since the cut is too deep.

I got my ridge beam up last week and I'm cutting rafters tomorrow. I haven't considered using gussets. My plan was to put blocks in between the rafters then use collar ties. Do you think that will work or do I need gussets? It's a 20x20 building. Ridge beam is five and a half by 15. It's a 5 12 pitch and raptors are 2x12. Is there an advantage to use gussets instead of collar ties?

Any ideas how much framing costs/sq ft with this type of ceiling? I need to extend my garage with no ceiling.

Are those support beams running to the slab supported by an extra footing or nah, I’m hoping I don’t have to do that lol

how did you get that LVL beam in yourself??

How would you do something similar for a hip roof?

All those gussets have pilot holes?

Are your rafters 16” on center?

Hi have a question my roof rafters are 24 OC in my existing garage, now I'm converting in a room but in the blueprinting it say I have to place Ceiling joints 2x12 @ 16 OC. Do I have to place it @16 oc or what does the inspector would say.? Thank you.

Great video. Did you put the main beam in also yourself? How did you get that in place?

I did an apprenticeship with my builder father and he didn't explain anything like this....he just rushed around and demanded shit.

Please tell me that's not ridge vent on a cathedral ceiling?

Did you design this yourself? Or did you get some design help from an Engineer? Impressive.

Awesome video. Did you have this permitted? I'm in the process of doing an addition this exact size and was wondering if you'd be able to share your docs. Thanks in advance!

Is he drinking a beer on the tour?

🌵🌵🌵👍👍👍

I dont get it

Why the hell did you use that intro sound?

None of that seems right to me. Sorry

You are definitely not a carpenter. You also don't know how to hold a square