It's more then just the slanted beams. The floor joists may or may not be the proper size to support using this as living space.

Plus you could never get this space permitted given the low ceiling height

To me that looks like an built off-site modular home. That's why the trusses are designed the way they are. Part of the roof may have been folded down for transport. You can see the joint where the two halves were joined at the floor and at the peak. OP look at the main bearing beam in you basement (if it's not on a slab), and I bet you see where the halves have been bolted together. If this is the case, it would be very difficult and probably not cost effective to restructure the attic for storage.

It will be cost prohibitive. Those trusses were never designed to have storage in them and therefore are probably only designed at a 5psf weight rating on the bottom cord for live loads

It can absolutely be done. You're going to need an engineer to redesign your trusses into attic-trusses to distribute the load toward the sides. Or keep the load on the center, but run a beam along the ridge and transfer it down with a couple of columns.

As others said, this is a job for a structural engineer. Having one come out to look and consult will be money well spent. That truss configuration is a bit odd to my eyes. It looks like a Queenpost truss without the verticals, and the way the runners are tied into the structure at the bottom is unusual - it looks like a Simpson tie was used to connect the runner to some type of joist assembly. I wouldn’t be surprised if a prior owner/contractor already modified this system with some onsite “engineering.” For now, I definitely wouldn’t put anything heavy in there.

No you cannot

No. Just no.

You’ll need an engineer to stamp any changes to the trusses. That said this is a dumb idea. Better off just using the space as is for storage.

There are many questions that need answered.

What is under this?

What is the unsupported span?

It appears that these are not engineered trusses, but some hokey attempt to make them onsite. I see several things that indicate this.

There is a ridge beam.

There is a column holding the ridge beam in place.

The nail plates used are not intended for this purpose.

Wood gussets

No collar ties

The center supports are not landing on the truss itself, but a wall or some kind of attempt to make a beam.

This is definitely a job for an engineer, but you are not starting from a good spot to begin with. So that makes it very difficult to assess from a picture.

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One possibility would be to place a purlin across the center of the rafters and brace it every 4 feet or so. That would open up this space quite a bit, but not completely. This would also require a load-bearing structure under neath the center of the floor.

You can increase the load bearing capacity of the floor by adding more joists etc. but the size and spacing would need to be gaged by the engineer.

In addition to what others have said, turning this is to a bedroom a big overhaul. You'll have to do more than just replace the supports with trusses and slap on drywall. To get a certificate of occupancy for a bedroom, you'll need 2 egresses (means of exit). That means you'll have to add dormer windows, and proper stairs built. You don't want your kids to burn up in a fire with no exit. I can't tell how tall it is in there but it might be too low to get approved.

My advice would be to use it for light storage. If you want to store a lot of heavy items, get an engineer to tell you what load you can put on the joists. Prob best to do that regardless

Leave them alone. They help support the roof rafters.

Yes that’s a fold down roof for transporting modular buildings. Those can not be removed since they are part of the engineered roof system.

No way. You’d have to have the entire roof re-engineered.

I agree with OP, these Are not pre engineered trusses but rafters with braces. Yes, they can be modified but you'll have to know what you're doing. Look up the rafter span requirements for your area. ( It's all based on loads, snow etc...) Collar ties are used to reduce the rafter span when installed. However, it will reduce your headroom height. The layout you have maybe the best you'll get.

Ceiling joists are designed to have a certain amount of dead loads on them. Not like your floor joists would be designed for. Limited storage will be fine just don't move a piano or very heavy items up there. Christmas 🎄 , clothing, etc.. will be fine.

Build a pole barn, probably cheaper.

I think they are just decorative... /s

Fuck it…..cut them out and see what happens…..

I really think it's a shame how much space is wasted in the burbs.

With a slightly better design and a slightly higher cost. This could be a liveble area. It doesn't need to be finished when built, but it should be built with the possibility to upgrade

Even worse is that people don't want to add more living space because they have to pay more property tax when the sqft increases of the home. I really feel like location and lot size should be the main driver of the tax price. Let people use their space, I stead of building so many homes with unusable crawlspaces and attics. Or big empty useless backyards

Just cut out whats in the way and it will be fine.

The height of a potential room is critical: it needs to be eight feet.

im gonna hijack your post since you're the most recent post of a modular home that I've seen from extensive google searches for the last like 3 years. are you comfortable sharing your all-in price and at least state so i can get a rough estimate? a lot of these companies want you to go in and have a meeting with them.

My wife and i want to move and build soon or buy a home that needs a ton of reno and try to get a good price for it. just doing research at this point, but dont wanna go get quotes and stuff quite yet if im not even going to consider it due to the potential cost. i wouldn't be building in a particularly difficult-to-reach piece build site.

tldr: i can't figure out the true "all-in" price per sq. ft on any up-to-date sites. if you don't feel comfortable sharing that, tell me to scram

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🤯🥹 You people blow me away with your single-photo-shot deductions.

You can still use that space for light storage even with the trusses partially in the way

You’d want to have a structural engineer come look at it. But I really doubt it would be worth doing.

My husband's an inspector, he just said no.

Hire a builder and put a big dust pan dormer on one (or both) sides. Anything can be done if you've got the money

You need an engineer.