Wood is a natural material with no off-gassing and no treatment necessary.
The intent of this page is less about talking you out of installing gypsum board (drywall), and more about giving you a little encouragement if you are hesitantly considering a wood ceiling.
Working with wood instead of drywall is more fun. Well, that’s my two cents anyway. It’s a natural product that can easily be handled by one person, it is lighter to pick up and certainly easier to hold over your head when attaching it.
As cutter, you watch for bends in the wood, problematic knots, and select the best sections to keep or remove. As installer, you select colours and grain patterns that look good together, so there is even a certain amount of artistic expression involved if you are the kind of person who gets engaged in their work. And when your brain has a bit more going on and some minor decisions to make, you can feel a bit more invested; that makes any task more enjoyable.
That’s a personal opinion of course, and that said, I enjoy doing a little bit of drywalling on occasion but just not as much. As a builder, the day never arrived when I said “Awesome, we are hanging drywall on the ceiling today”, whereas I was always happy when a client chose a tongue and groove wood ceiling.
The aesthetics of drywall compared to wood ceilings:
Clearly my bias has been established; I like wood ceilings. I find those moments when you are vacantly staring at a ceiling to be infinitely more interesting with tongue and groove wood than staring at a monotone eggshell-white surface.
Painted ceilings are typically light in colour, which can make a room feel larger than if the ceiling were painted a darker colour. Due to its typically darker shade, there is the potential for a wood ceiling to make a room feel slightly smaller than the average, so the appeal may be reduced in smaller rooms. Like basements for example, or smaller partitioned homes without much natural light. But that impact is hardly noticeable in an open-concept room with cathedral ceilings and lots of natural light.
Wood ceiling © Ecohome
Installing wood on ceilings compared to drywall:
Drywall installation goes quicker than wood, or at least seems to at first, but that is only the first stage. You still need to mud the joints (three coats plus touch ups) then sand it, dust it, prime it and paint it. And you will have better luck finding a talking unicorn than a worker that says they enjoy mudding and sanding over their head.
Drywall is, however, the common ceiling material of choice in tract-home developments. With economies of scale and operating like an assembly line – the drywall crew rips through a house in maybe a day or two, then a separate crew does the mudding and sanding and a third crew comes in to paint; it is no doubt cheaper than wood.
With custom homes built by an independent contractor, drywall and mud is most often subbed out to a separate crew, as it is a very unique talent. Anyone can do a bad job at mudding, but you really need to immerse yourself in the craft to be fast and good at it. I’ve done some mudding in the past - usually in areas of little aesthetic importance - and just enough to suck at it. So I tip my hat to the mud artists who can make a wall smooth in three coats, whereas my four coats always left a wall looking like a failed attempt at stucco.
When you factor in the travel time of separate crews coming to a custom home rather than going door-to-door in a development, any monetary savings from choosing drywall over wood will probably become less noticeable.
Paint and finishes:
You need to prime and paint drywall but you do not need to do anything with wood. Some people choose to stain or seal wood before installing it on a ceiling, but I’m not that guy. That means more materials, more labour and more fumes, and really for no tangible reason.
There will be virtually no UV exposure on your ceiling, so the colour shift will be minimal and very slow to take place. And as no one will be touching it, you won’t need to wash it. All this is to say that you don’t need to apply oils, stains or any type of sealer to a wood ceiling. Some people do, but that is perhaps a choice for a glossier look or a richer colour. Even then, it will only slow a colour change; it won’t stop it.
Typically, you would see an untreated pine ceiling turn a slightly darker shade of yellow over the years, but not nearly as much as you would notice with a floor, even a floor that has been treated with a varnish or natural oil.
Varnished wood floors will show discolouration over even a couple of months between portions exposed and those covered by furniture or an area rug. Without direct sun exposure, a wood ceiling will age slowly and evenly.
14 year old timber frame with 1.5 inch pine boards as the finished ceiling, but also the floor above © Ecohome
With wood: the only air quality issue with untreated wood is the dust coming off the saw when it’s cut. But that is among the least of your respiratory concerns on a typical work site, and cutting can often be done outdoors to help keep the work space cleaner.
With drywall: Every piece of drywall you cut will generate a fine dust, but that pales in comparison to what you will generate when you are sanding drywall compound. It sucks for the person doing it, and for anyone stuck in the same space while it’s happening. Doing Mr. Miyagi’s ‘wax on, wax off’ training over your head for a day will make a Karate Kid out of anyone; short of that, there is nothing fun about it.
Cost comparison between wood and drywall:
Here is a general comparison (without tax and material delivery fees) between installing wood or drywall, based on 1,000 square feet of ceiling. Of course, this would vary depending on local material and labour costs, as well as ceiling height and complexity - so if you think my math is off, remember it’s a ballpark estimate.
Based on quotes from my local suppliers, a pine V-joint wood ceiling would cost you about $1,700 in materials (with 5% waste factored for cutting) and take a crew of 3 workers (one cutter, two installers) approximately 1.5 to 2 days to complete. If you calculate that with a labour figure of $40 per hour, you’re looking at an approximate installed cost of $3,600.
Finishing a ceiling with drywall would cost about $500 in materials for drywall, tape and mud compound. It would take two workers between a half-day and a day to install the drywall, one worker 3 days to do 3 coats of mud, and 1 day of sanding. That’s a total of about $2,400 for material and labour, but you haven’t applied paint yet.
To do one coat of primer and two finishing coats you’d need 8 cans and it would easily take a day and a half with taping. At that same rate of $40 an hour and assuming $40 per can for a middle-of-the-road low-VOC paint, for a drywalled ceiling you’d be looking at an approximate installed cost of $3,200. That’s only a difference of about $400, which given that this is an estimate, your cost to install either material could change in price by that very amount, making them pretty much about the same price.
This depends on the origins of your particular material choice. If you choose lightweight, recycled synthetic gypsum board, low-dust drywall compound and zero-VOC paints, you will protect workers and occupants health, it would also reduce your carbon footprint and the amount of pollution generated compared to choosing the most affordable materials you could find.
Similar choices can be made with wood – you can use reclaimed barn boards, FSC-Certified lumber, or wood reclaimed from river bottoms as seen above. It will also reduce the negative health and ecological impacts of finishing with wood if you omit applying a finish.
One thing is for certain - when the work is complete, it will be quicker and easier to clean below a wood ceiling than one with drywall, mud sanding and painting.
If you are interested in the look of wood but would like to mix up the look a bit, below are some examples of a ceiling with a dark stain, a lighter stain, and a white wash, which brightens the look of the wood but still lets the grain and character show through. Images courtesy of the Wooden Shoe Timber Frame Company