Once or twice a year, something extraordinary happens. The Timber Framers Guild partners with a local non-profit or community to build a timber frame. Timber framers and volunteers come together to help raise the frame, the local community feeds the volunteers, and almost always, something magical happens: communities get stronger, friendships develop, and a bond is formed–both for the timber frame industry and the community that brought them there. This short video lets you be there for the raising of the Schuylerville NY timber framed Visitor’s Center for the Champlain Canal region. For more information about the Timber Framers Guild Community Building Projects, visit www.tfguild.org/community-building.
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Reclaimed Wood Timber Frame in New York’s Finger Lakes Region
Guaranteed way to beat the heat this summer: Spend 3 minutes following our crew as they build structural timber frame trusses from reclaimed wood in our North Carolina shop, and then erect them on the shore of one of the Finger Lakes in New York…in January…
We’re proud to have been featured in DesignNY magazine:
Crane Day: Watch a Timber Frame Raised in 1 Day!
Crane Day: It’s the moment we’ve all been waiting for. It’s the culmination of months of design, engineering, off-site fabrication in our shop, a lot of hard work, and skillful execution.
Timber Traditions: Our Industry Customs
Timber framing has been around, in some form or another, for over 2,000 years. So it stands to reason, some interesting timber framing traditions and customs have sprung up in connection with timber frame construction. We thought we’d share some of the more interesting ones…
Common Timber Frame Traditions
Topping Out Ceremony and the Wetting Bush
One of the more well-known timber traditions involves nailing a bough or small evergreen tree to the highest point of the timber frame. According to Fine Homebuilding Magazine,
The ritual serves two purposes. One pays homage to all the trees that went into the construction of the house, and to the many hands that built it. The other symbolizes the establishment of the house’s roots, which will nourish a long and prosperous life. The young tree is called a “wetting bush”, likely derived from the German tradition of watering it as a sign of the home’s first nourishment.
So, who gets to set the wetting bush? The youngest carpenter present.
The Barn Raising
Of course, this might refer to a home, an outbuilding, or even a post and beam shed, but Barn Raising evokes an image familiar to most of us–a community coming together to accomplish something big.
In the “olden days” the individual timbers for a house or barn would be cut and fitted by just a few men or a family. When all the individual walls were ready, the whole community would come together to raise the walls into position and set the rafters and ridge beam in place. This would be done using gin poles, ropes and pulleys, and of course, strong men. Although hard physical labor was required, “many hands make light work”, and the day ended with a celebration and party. The wives and children participated and a feast was held. There’s a real nostalgia in the thought of honest labor and participation in a feat that none of the individuals could have accomplished alone.
The Group Photo
This doesn’t happen when the sheetrock goes up…but once the last timber is raised and pegged, the moment is documented with a photograph. Why? Perhaps because timber framers often feel that the timber frame will never be more beautiful than at that moment (before it is covered by walls and a roof), perhaps because all present sense that this structure will outlast every one in the picture.
Feeding the Framers
Whether it’s a tradition, or simply good manners, timber framers always appreciate a hearty meal! So they perpetuate the superstition that feeding the crew will bring the building (and Owners) good luck…
Slaking the Framers’ Thirst
A French tradition, courtesy of Charpentiers Sans Frontières (Carpenters Without Borders), is to give the lady of the house the honor of pounding in the last peg. She is expected to owe the crew one drink for every blow of the mallet required to drive the peg home.
Using a Coin to Date the Building
Think of this as a very abbreviated time capsule! A coin minted the same year as the structure is built is placed under a post, where it (presumably) will not be found until the building is dismantled (and hopefully the timber frame reclaimed).
Carving the Date
The date of completion is carved into the frame. This may be done in a visible and conspicuous place, such as over a doorway, but it might also be done in a less obvious spot. For example, some timber frame companies carve the date in the location on the frame closest to where the home shop is located. In our case, the date would be carved on the side of the building closest to West Jefferson, North Carolina.
Signing the Frame
All the timber frame craftsmen (and craftswomen) who worked on the frame sign one of the timbers in a hidden place where it may lie undiscovered for a century or more.
Topping Out in Space
One of our clients worked for NASA and sent a photograph of Mission Specialist Joe Tanner topping out the International Space Station. The evergreen tree represents the highest point (top of the P-6 integrated truss structure) of the ISS.
Why Do Timbers Split and Crack?
Eric Morley on why timbers split and crack, how long it takes timber to dry, where to get dry timbers, and why gunshots in the night are nothing to be afraid of when you understand wood checking and splitting.
Wood checking and splitting, a natural phenomenon in timber, occurs as the wood dries and loses moisture. This process leads to splits and cracks, known as “checks.” While they do alter the appearance of the timber, checks also add unique character without affecting the wood’s structural integrity.
What Causes Wood to Crack?
Drying Does!
Splits and cracks (known as wood checks in the industry) occur when wood shrinks as it dries. Wood shrinks roughly twice as much along with the growth rings (radially) as it does across the rings (tangentially). It is this uneven shrinkage that causes checks to develop.
Is Wood Checking Bad?
Here at Carolina Timberworks, we think of them as wrinkles in a cotton shirt. It proves the timber is real. Checks are what make a solid timber look different from a boxed beam. Look at the reclaimed timber below. It is impossible to predict where a check will appear in timber. It is the check that gives this reclaimed white oak timber so much of its character and a big part of what makes it completely unique and different from any other beam in the world.
Ever Heard the Song of the Wood?
Have you ever taken a hot loaf of artisan bread out of the oven, and put your ear to it? If you do, you’ll hear the song of the bread–pops and crackles as the crust shrinks, cracks, and dries.
Walk into a timber framer’s shop one winter evening when everyone has gone home for the day. Throw another log into the woodstove, and listen carefully. If there are green (wet) timbers arrayed on sawhorses, within a few minutes, you’re likely to hear the song of the wood – a symphony of pops and cracks as wood checking occurs.
If one night, asleep in your new home, you’re awoken by a loud crack a little like a gunshot. Don’t worry. Roll over and go back to sleep. It’s just your timbers singing to you. That’s wood checking in action.
Why Does Wood Shrink?
It sometimes surprises people to learn that roughly half of a living tree’s weight is water. Let’s consider a 24’ long Douglas Fir log that measures 34” diameter at the large end and 14” at the small end as an example. This hypothetical green (wet) log would contain a little over 1 ton of water or about five 55-gallon drums of water.
Sometimes when we drive a chisel into green (wet) timber, water spurts out of the wood. Wood is hygroscopic – meaning it’s like a sponge in that it can absorb, hold and release water. When freshly cut, approximately half of a tree’s weight is water. The photograph below shows water in a freshly cut cypress timber–and how the timber is drying from the outside in.
How Long Does It Take a Timber to Dry?
It’s not exactly a fast process. It depends on the humidity of the environment in which the timber is located, but a rule of thumb is that timber air dries about one inch per year. Thus a 12” x 12” timber would take about six years to dry to the center.
How Dry Will the Timber Become?
A timber will eventually air dry to the Equilibrium Moisture Content (EMC) of its environment. The EMC is the point at which wood is neither losing nor absorbing water. A timber’s moisture content is determined by the atmospheric humidity of the timber’s environment.
That environment varies, of course. Is the timber located inside, or outside? What part of the country is it located in? What time of year is it? For example, in the dry mountain air of Denver, the outdoor EMC of wood exposed to the outdoor atmosphere in July is 9.4%, while New Orleans is 15.3% (Forest Products Laboratory: Equilibrium Moisture Content of Wood in Outdoor Locations in the United States and Worldwide, August 1988).
How Wet (or Dry) Are My Timbers?
Since we can’t see the water in the wood, moisture meters are used to measure moisture content. Inexpensive moisture meters measure the surface moisture content which works ok for 3/4” boards, but not 8” thick timbers. Professional moisture meters use electromagnetic scanning to read the moisture in the wood, not on the surface of the beam.
What is the Average Moisture Content in the U.S.?
The majority of the U.S. has an 8% average moisture content, the Southeast and California coastal areas have an 11% average moisture content, and the Southwest desert areas are closer to 6%.
Most Timber Frames Are Built From Green (Wet) Wood
It is impractical (it takes years) to air dry timber, and timber frame customers are nothing if not impatient, so for the last two thousand years, people have been building timber frames from green (wet) timber. Yes, green timber will shrink, check, and sometimes twist as it dries, but timber framers and engineers understand and account for the movement. Checks begin on the exterior surface of the timber and almost always stop at the heart (center) of the timber, and are almost never a structural concern.
By the way, if a crack were to develop all the way through a timber (splitting timber it into two separate pieces), it would be called a split and might be cause for concern.
Learn more about timber framing all the ways timber can be used here.
How Much Does Green (Wet) Timber Shrink as It Dries?
Shrinkage depends on the species, but more than you may think!
Since many timber frames are built from Douglas Fir, let’s start by looking at a 12×12 Douglas Fir (Coastal) timber. This particular green (wet) Douglas Fir timber, dried to a final moisture content of 8%, would be expected to shrink a little less than 9/16” on each face from 12” x 12” to a final size of 11-7/16” x 11-7/16”.
Western Red Cedar shrinks less: The same size timber in Western Red Cedar timber would shrink a bit less about 5/16” to 11-11/16” x 11-11/16”. Finally, how about a species with a high shrinkage rate, like White Oak? It would be expected to shrink a bit less than 3/4” to slightly larger than 11-1/4” x 11-1/4”.
6 Ways to Minimize Problems with a Green (Wet) Wood in a Timber Frame:
- Specify Free-Of-Heart-Center (when available) instead of the lower Boxed Heart grade.
- Apply a wax-based end sealer to the end grain to slow the drying process. We use Anchorseal, available at https://uccoatings.com/products/anchorseal/.
- Utilize housed joinery wherever possible.
- Drawbore pegged joints.
- The slower the wood cracking when drying, and the more gradual the process, the better (i.e., the worst thing you can do is enclose the timber frame and immediately turn on the heat or air conditioning full blast.)
- Do not apply a film-forming finish (i.e., polyurethane) to green (unseasoned) wood.
- Sawing checking kerfs on an unseen timber face is a good practice and can help mitigate the visual checking.
I Don’t Want Wood Checking or Cracks in My Timbers. What Are My Options?
Don’t build with solid timber. Instead, ask us to price glulam beams for the timber frame, or to fabricate box beams from kiln-dried new or well-dried reclaimed lumber.
If you’re ok with some checks, but would prefer to avoid some of the characteristics of green lumber, consider purchasing your timber like you do your high-quality organic cotton t-shirts–pre-shrunk. There are two ways to buy dry beams: new timber that’s been dried in a kiln, or reclaimed wood that’s dried slowly and naturally for 50 or 100 years during its previous life as a timber frame barn or warehouse.
Where to Buy Kiln Dried Timbers?
We offer two types of kiln-dried timber: Conventionally kiln-dried (KD), and Radio Frequency Kiln Dried (RFKD). Conventional kiln drying dries about the outer 1” or so leaving most of the timber wet. The other method, RFKD, is similar to a giant microwave and dries timber to the core.
What you need to know about RFKD timber is that it currently works only on Douglas Fir, it is dry to the core, and it is more expensive. It is, however, not as dry as conventionally kiln-dried hardwood flooring or lumber (6-8% moisture content). For example the driest grade of RFKD timber measures 15% or less moisture content 3” in from the surface of the timber.
What About Using Reclaimed Wood in Timber Frame Construction?
Reclaimed wood beams that have naturally air-dried for 50-100 years during their previous life as a barn, factory, or warehouse are often completely dry to the core and the driest timbers available anywhere. It’s not easy to hand-scribe and connects irregular, twisted, and non-square reclaimed beams so the finished timber frame appears to have always been one frame.
We think a timber frame built from reclaimed wood is everything that today’s sleek, mass-produced, technology-saturated culture isn’t. It celebrates the cracks and character and dirt and all the other marks that time, weather, and use leave behind.
Interested in learning more about timber framing? Check out our timber frame blog.
How to Figure Out a Timber Frame Budget
Champagne timber framing on a (craft) beer budget
After receiving the latest Carolina Timberworks newsletter, a potential client emailed a great question: “Can you show a recent home for a customer on a 300k budget, else this stuff is non-realistic to normal non-millionaire folks“.
My Emailed Reply About a Timber Frame Budget
With respect to non-millionaire projects, we do a lot of them in North Carolina and around the United States. One way to fit timber framing into the budget is to consider hybrid timber framing — i.e. timber frame only certain parts of the house as opposed to building a timber frame house. You might consider identifying an area or two within your plan that you might like to timber frame (for example the front entry and great room) and establish a budget. Then, give us a call and we’ll do our best to come up with something great that fits your budget. By the way, if the timber framing is structural (versus decorative) there is some cost offset savings to be realized (since the timber framing is replacing 2x conventional construction).
Admittedly, timber framing is more expensive than conventional construction, but it’s also for us non-millionaire folks. I have a timber framed heavy duty mailbox with post, one curved timber bracket at my front entry, and a timber framed garage/guesthouse.
Finally, you can design, cut, and raise the timber frame yourself. It’s a heavy lift (pun intended), but your ancestors probably did it, and people today find it highly rewarding. By the way, there are wonderful schools that teach introductory timber framing (Heartwood in MA, and Yestermorrow in VT).
A More Considered Reply on Timber Frame Cost
Most of the timber frames Carolina Timberworks builds are for architect-designed homes — so to be clear, we do not design timber frame homes. My personal design philosophy has been shaped by the architect-designed timber frames we’ve been involved with, as well as two books:
- A Pattern Language by Christopher Alexander
- The Not So Big House by Sarah Susanka
Sarah Susanka’s design philosophy might be summarized as follows: Keep your budget as is, but design a smaller home with less square footage. Spend the cost savings on great design, quality materials, and craftsmanship.
Suppose you want to budget for some timber framing in your home, have a smaller home design in hand, and have already chosen which areas of your home to timber frame. Here are some factors under your control that will determine how much your timber frame construction costs:
- The timber frame design itself. The simpler the timber frame design, the less expensive it will be.
- Your timber choices are varied, and certain timber species are less expensive than others.
- Within a given timber species, sometimes a lower grade is available that will produce a serviceable yet still beautiful (and less expensive) timber frame.
- Reducing timber sizes. If structurally feasible (here’s where quality timber frame engineering pays for itself), these savings can add up fast. For example, an 8×8 post has 36% less wood than a 10×10 post.
- The Golden Triangle applies to timber framing, just as it does to other purchases. Pick any two sides. You can have fast and cheap (but mediocre), good and cheap (but slow), or fast and good (but not cheap). You can’t have all three.
Need Some Ideas About Designing a Smaller Home So You Can Fit Timber Framing Into the Budget?
Since we don’t design homes, it was timely that Brice Cochran of Timber Frame HQ recently sent me some good advice on the topic.
Planning is the First Step
Whether you’re buying your first starter home, downsizing after the kids have flown the coop, or are financially limited to a smaller timber frame home, planning the most practical way to use your space can make that house seem more spacious.
It’s great when you can have a room for each of your family’s activities, but it usually isn’t feasible. By thinking ahead, planning your space, and getting creative, you can come up with a solution that gives everyone in the family the space they need for various hobbies and activities.
Consider the Things You Want to Do
Of course, you could make a laundry list of dozens of things you’d like to do in your home, and those may be good for your bucket list. However, think seriously about your family’s lifestyle options. What hobbies do your family get involved with and what responsibilities do family members have that require special space?
Be realistic about your needs, now and in the future. Make contingency plans and put future expansion and remodeling ideas into your design. If you envision a future addition, make sure you have the space on your property for it. Make sure there is easy access to add electrical, HVAC, and plumbing to the room when the time comes.
Rethink the Size of Rooms
It’s become very popular to have huge master bedroom suites and oversized spa bathrooms. It sounds cool to think of having a private getaway in your bedroom with plenty of space for a desk, a comfortable chair, or even an exercise machine. In addition, that spa bathroom that’s big enough for the whole family to use at once might seem glamorous, but when you’re planning a modest home, these two rooms may need some rethinking. The extra square footage you gain when you scale down those oversized rooms can go a long way to giving other smaller rooms the space they need to become roomy multi-purpose rooms the entire family can enjoy.
Hallways are a big waste of space. Plan your home to have the smallest square footage of the hallway as possible and use the extra space to enlarge other rooms.
Repurpose Spaces
If you never use your formal dining room and have ample space in your kitchen or family room, repurpose it as an office, hobby room, or exercise room. You don’t need a huge laundry room. In designing your home, consider using a closet for your washer and dryer.
Consider creating a centralized all-in-one space that includes your HVAC, plumbing system, storage, and laundry area. This compact use of space frees up valuable real estate for expanding smaller rooms.
Choose Furniture That Does Double Duty
Think further than a hide-a-bed when you’re considering furniture that can multitask. Of course, a convertible sofa is a good answer for a guest room that doubles as an office or study. There are lots of furniture options that make changing the role of your room easy and look great.
Certainly not cheap, but a great space saver for a guest room is a Murphy bed. These units have been around for years and today’s models are sleek and stylish. An adjustable height coffee table that rises to become a worktable or eating space is a perfect space-saving option for a desk or craft table in a study.
If you don’t have room for a desk, there are fold-down wall-mounted units that hide beneath an art print or mirror surface when it’s stowed away.
A long counter with base cabinets can be used as a desk or work area with plenty of storage space. This area can double as an entertainment area in a family room.
There’s a wide variety of furniture that incorporates storage into the base. Benches, footstools, low chests all are available with built-in storage space. Under-bed storage options vary from off-season clothing storage to a child’s toy storage and play surface to a pull-out trundle bed. Expandable tables are popular for feeding a crown or as a roomy work table.
Make Use of Lost Space
You may have some wasted space that can be converted to useful living space. The area beneath the stairs can serve a number of purposes. Open up space and create a compact workspace with a built-in desk and shelves. Another option is to create a storage space with a closet or a wall filled with drawers. Depending on its location, it could become a cozy reading nook, wet bar, or a diminutive powder room.
Space under the eaves can be fitted out with drawers for built-in storage, or if there’s enough headroom, lay down sturdy flooring and use it for long-term storage.
The most overlooked and underused space in most homes is the vertical wall space. Shelving can be installed around doors, above and adjacent to windows, in a wide hallway, and can reach to the ceiling. With all the added storage that doesn’t take up floor space, you can minimize bulky furniture like dressers and cabinets. You’ve opened up the room to accommodate the things you need for your multi-purpose plans.
Spend time planning how you’ll realistically use your home and develop a strategy to make the most of your home’s square footage. You may be surprised at how much you can do with the space you have.
Finally, you might enjoy this article about the low cost of quality: https://www.carolinatimberworks.com/a-return-to-quality/
The Benefits of Timber Framing
When you design a new home or modify your existing space, deciding on a building method is one of the first—and most important—choices you’ll have to make. If you’d rather avoid the standardized look of conventional construction, then the handcrafted aesthetic, the gorgeous exposed beams, and the open floor plans synonymous with timber framing may have caught your eye.
But is this method of building really the right choice for your home or family? What are the benefits of timber framing—and are there downsides you should know about?
At Carolina Timberworks, our team has collectively had more than 90 years to ponder these questions. Here’s what we think, based on our first-hand experience with building and customizing timber frame homes.
What Are the Benefits of Timber Framing?
We can think of quite a few:
It’s an Art
While watching Fine Homebuilding’s video of architect Caleb Johnson of Biddeford, Maine, discuss the winner of the 2015 Best New Home award, we were struck by his profound insights into the benefits of timber framing. His words beautifully capture why we’re drawn to and love timber framing: “Built poetry.“
“The materials go together in a fashion that you can tell he (architect Louis Kahn) cared deeply about the nature of those materials and the way they came together on a level that’s art–not just construction.“ It’s true: we’ve found that timber framing is much more than a building method. It’s an art.
It Gets Better With Age
As Caleb Johnson says, “If we use natural materials, as time goes on, these natural materials take on a character and patina that enhances the building. Whereas when you use manufactured materials, those materials will look best the day you put them in, and they will deteriorate from there, and there’s really nothing you can do to bring them back.“
Building a timber frame home requires heavy timber and wood joinery, which is about as natural as it gets. What does that mean for your family? You can expect your timber frame home’s aesthetic to continue to evolve and develop a character of its own over time. In other words, it gets better with age.
It’s Sustainable
From the new wood to the concrete and steel, stick-built homes are often the opposite of sustainable. Conventional construction generally uses highly embodied resources that produce extensive carbon emissions and younger trees that never get to realize their potential as a carbon sink.
In contrast, timber framing tends to be much more sustainable. What do we mean when we say timber framing is sustainable? This short comic says it all:
It’s an Experience
A timber frame structure doesn’t typically require load-bearing walls. That means a timber frame home can often support (literally!) open floor plans that go beyond what conventional construction could create.
But that’s not all. As Caleb Johnson says, “I feel that the structure of a house can be the most expressive part of the architecture and I feel that when that structure is exposed, it’s most powerful when it’s authentic–like it’s actually bearing the load of gravity pulling the house down and the winds trying to push the house over.“ In other words, let’s just say living in a timber frame home is quite an experience.
Are There Disadvantages to Timber Framing?
Any timber frame company that tells you there are no downsides isn’t telling you the whole story. Most importantly, you should know that timber framing tends to cost more than conventional construction for a variety of reasons, including the engineering, the highly skilled labor, and the high-quality wood. Even if you opt for a timber frame home kit, you can expect it to be more expensive than a stick-built house—especially if you intend to modify the plans dramatically.
Can you cut the costs? Sure, there are a few ways to make timber framing less expensive. From careful planning to rethinking room size to repurposing space creatively, we have several suggestions for how to fit timber framing into your budget.
Should You Build a Timber Frame Home?
It may come as no surprise that at Carolina Timberworks, we think there’s nothing better than a timber frame structure. But a timber frame house certainly isn’t the right choice for everyone. So how can you decide? Take a look at our timber frame portfolio to see our work in action or contact us to talk about your project. We’re nice!
Special thanks to Shannon Richards of Caleb Johnson Architects for permitting us to reproduce Caleb’s words.
Timber Frame Treehouse
Search for “problems with tree houses” and Google will serve up 37,100,000 results: it’s impossible not to harm the trees, trees grow over time, trees die, there aren’t the right trees where you’d really like to have a tree house…
Our take on the tree house solves these problems. Carolina Timberworks’ two and a half story Timber Frame Tree House Tower is an engineered and architecturally designed kit that doesn’t rely on trees for support. This allows you to site your tree house on the best spot on your property instead of being limited to where the right trees are. No trees? No problem. Ever wanted to spend an afternoon hanging out in a fire tower gazing out over the forest and valleys? Got an amazing view if only you were 25’ higher? Brilliant, right?
Want to learn more? Here’s a link to our timber frame tower kit.