Tag: iFarm

  • Natural woods, their individuality and friendliness*

    Natural woods, their individuality and friendliness*

    Tom pets his pine
    Tom pets his pine

    There exists in wood a quality so satisfying that the proper use of it in the structural features of a house produces an effect of completeness which does away with the need of elaborate furnishings or decoration.

    – Gustav Stickley, The Craftsman, July 1905

    Every now and then, I encounter a windbag who wants to tell me how I can no longer find the wood needed to properly restore 18th-century buildings.  And he’s partly right, as windbags unfortunately are. Wainscot found in the Demeritt-O’Kane house was composed of a single clear panel 26″ wide and 17′ long. It is difficult, and not even always ethical, to obtain boards of that quality, and that is just one reason we preserve and repair original material whenever feasible. But sourcing wide, clear, heartwood pine (as well as large timbers) is challenging, not impossible. If one sources further afield than the local lumberyard and invests in good relationships with a variety of sawyers, it is possible to obtain wood qualified to our task.

    Shawn Perry is one such partner with which PTF is fortunate to work.  Most clients know him as the stout and skilled joiner found on jobs that range from a cylindrical water tower in Boxford, MA to a steeple in Castine, ME.  With his wife Rebecca, Shawn manages their homestead in Lebanon, NH and often supplies PTF with black locust pulled from his woodlot by Judy and Aurora, their draft horses. Shawn, neighbor Steve Collins, of Belgian Meadows Farm and Les Burden, of Burden Tree Farm in Farmington, are three off-the-beaten path suppliers who help us source the wood required for especially discriminating jobs. Through these relationships, Shawn was able to procure pine logs 27-30 inches in diameter, knowing immediately their value if not their ultimate destination.  He milled the logs to 1″ boards and stickered and seasoned them, slowly, over years. The resulting boards were almost entirely heartwood, very nearly clear, and 16-22″ wide.

    Fireplace wall, evened to the eye
    Fireplace wall, evened to the eye

    The boards were destined for the interior of the c.1790 farmhouse at iFarm. The client and architect specified a simple fireplace surround appropriate to the date and station of the original house.  It consists of a beaded panel wall with a beaded, horizontal lintel. The tongue and groove boards serve both as wall paneling and as trim at the door openings (rather than an applied door casing). The lines are clean, and, for all their traditional authenticity, modern-looking. Fine carpenters will recognize that this austerity of line leads to the most demanding construction. From our perspective, the real purpose of casings and moldings is not to add ornament, but to hide the joints at borders; without it, every cut must be perfect.

    Flush door "casing"
    Flush door “casing”

    Dan, Dave and Tom milled the boards at the shop and finished preparing the surface with careful hand-planing. They used a very sharp and very shallow blade, in order to prevent tear-out. Progressing slowly and incrementally, they were able to identify a change of grain before the plane dug in, and would duly switch direction. Many people recognize the fine scallops associated with a traditionally hand-planed surface, but don’t know that a sharp hand-plane also leaves pine with an iridescent sheen. Side-by-side, the crisply cut fibers of a hand-planed surface is an obvious improvement over the hazy, abraded surface left by fine sandpaper (even without the scallops, which should be shallow, and whisper rather than shout).

    Tom cut the beaded edge with a tablesaw cutter with a 1/4″ round bead and a quirk that comes to a point. Usually, he’d cut the bead with his selection of molding planes but their flat-bottomed quirks did not match the original profile found at iFarm.

    Back on the iFarm, the fireplace wall in the living room was slightly curved and well out of plumb. Before fitting the paneling, Tom strung a series of mason lines along its length and furred out the wall to within 1/2″ of flat.  If he had attempted to make the wall perfectly plumb and true, the wall would have appeared drastically uneven at the corners, at the door openings and worst, in the middle of the room, where the wall intersects the masonry of the fireplace.

    Wall paneling scribed to original joists and second story floorboards
    Wall paneling scribed to original joists and second story floorboards

    A final challenge awaited Tom at installation.  The wide pine paneling runs full length, from floor to ceiling. Each board needed to be scribed to both the new floor and to the original second story floorboards that create the ceiling. The undersides of the second floor boards were rough and uneven, and not one of the original oak joists was square. When necessary, Tom first cut a pattern out of 1/4″ luan, and fit that before using the pattern to cut the pine.

    Tom and the wall, if only the photographer had been as careful with her focus as tom was with his carpentry
    Tom and the wall – if only the photographer was as careful with her focus as Tom is with his carpentry.

    The results are impressive.  Even as construction continues, the room is very pleasant to be in. The raw pine is warm, and even though the design is very simple, the fine craftsmanship is evident. As I was admiring his work, I asked Tom if, after all that effort, this wood was perfect, and he said, “No.”  Which is true, and evidence of his standards as much as his loquacity. I was reminded of Robert Adam, our teacher at North Bennet, who taught us to choose sticks of Eastern White Pine that are devoid of sapwood and tightly vertical grained, even if they contain pin knots. These are highly preferable to the clear flat-grained stock often found in “Select” piles.  The rot-repellent extractives that give Eastern White Pine heartwood its pinkish hue are why we still find 200-year old trim on New England’s capes – trim which is often “marred” by tiny pin knots. In a 1909 article in the Craftsman, Gustav Stickley addresses the selection for perfection in wood. He wrote:

    …We are too apt, when we are choosing wood for the interior of our houses or for the making of our furniture, to put a money value on it rather than to allow ourselves to appreciate its natural beauty. For it is a fact that the greatest beauty often lies in wood that is faulty and comparatively valueless from a commercial point of view, and that by throwing this aside we sacrifice the most interesting characteristic of the woodwork.  When we do strive for the effects produced by crooked growth and irregular grain, we go to the other extreme and instead of studying each particular piece of wood and using it exactly where it belongs with relation to the rest, we hunt out deliberately the most gnarled and knotted pieces, so that the result instead of being interesting a natural and inevitable way, is eccentric and artificial.

    This is the greater pity because, after all, it requires only a little interest, care and discrimination to give to the woodwork of a room just the kind of interest and beauty that belong to it. Instead of that we are apt either to imitate the wealthy man who built a cottage in the Adirondacks and paneled it throughout with spruce so carefully selected that not a single knot appeared throughout the entire house, or else we go to the opposite extreme and deliberately select the wood of irregular and faulty grain for the entire house, instead of letting it appear here and there as natural

    – Gustav Stickley, The Craftsman, May 1909

    For more photos of iFarm, please visit our Flickr album.

    *The title for this post was taken from an article by Gustav Stickley, in his journal The Craftsman: “Home training in cabinet work: the texture and quality of natural woods, their individuality and friendliness.”

  • Arbor Days

    Arbor Days

    Brian pointing out center line on sapling "tie"
    Brian pointing out center line on sapling “tie.”  Note temporary shelf below the tie.

    Arbor Day is everyday down at iFarm this spring.  Brian and Shawn have been building an arbor that will support fruiting vines, like arctic kiwi, on this permaculture farm.  Serpentine in layout, the arbor is constructed from black locust saplings with simple half-lap joinery on full-round material.  Black locust is a choice species for use outdoors and in basements, because it has the density of white oak, and is even more rot-resistant.

    Black locust stretcher, with initial lap cut
    Black locust stretcher, with initial lap cut. What a tight grain!

    The construction process is significantly more detail-oriented than square-rule timber-framing, but uses similar concepts to scribe-rule framing, which was used until the mid-19th-century (and which we most commonly reproduce in our buildings).  The saplings are irregular, but the joinery and layout hews to an imaginary straight line through the center of the timber.

    Arbor line
    Arbor line

    First, Shawn and Brian laid out the vertical posts along a lazy, winding course.  Then, they joined the posts with horizontal ties creating a series of frames similar to timber-framed bents.

    Brian demonstrates the use of the double bubble scribe
    Brian demonstrates the use of the double bubble scribe on a post-tie connection

    Brian’s Veritas double bubble scribe has seen a lot of action throughout this process. Brian screwed temporary shelves to the vertical posts and rested slimmer locust saplings between them, creating stretchers that follow the bents parallel to their course.  When he is satisfied with the orientation of the stretcher, relative the the bent, he uses his bubble scribe to draw the outline of the vertical post onto the inside edge of the horizontal stretcher.  The benefit of the bubble scribe over a regular compass is that it has two bubble levels incorporated into its arms, allowing Brian to keep the scribe level and plumb.

    Initial lap joint cuts
    Initial lap joint cuts

    Even with this increased level of accuracy, Brian makes his first cuts a full quarter inch shy of his line. If he cuts directly to the line, the unevenness of the two timbers might cause him to carve a void where there needn’t be one.  The imperfections and knots along the surface of the timber pose a challenge that makes it important to creep up on the joint.

    Creep up on it
    Sneak up on it

    After carving the initial lap, Brian refines the fit of the joint the way you catch a unique rabbit (u-nique up on it). Above, he demonstrates how a common compass can be used to create a tight fit between two fairly lumpy, cylindrical surfaces. Approaching the joint in this way allows him to achieve a complex and tight fit between the stretcher and post, and sometimes, with an additional stretcher.

    Stretchers shaking hands, saying, "How do you do? They're really saying 'I glove you'"
    Stretchers shaking hands, saying, “How do you do? They’re really saying ‘I. Glove. You.’”

    The joints are fastened with lags composed of grade 8 steel.  This metal will acquire superficial surface rust, and blend in with the wood, then stop rusting.

    Locust sapling post, tie, and stretcher
    Locust sapling post, tie, and stretcher

    iFarm continues to be an exciting project, posing new challenges every season and demanding an expert level of attention to detail.  We can’t wait to see the fruits of our arbor, and what new challenges await us around the bend.

    More photos here.

  • A Marriage of Traditional Joinery and Modern Engineering

    Dan, harder at work

    On Wednesday, the crew down at iFarm raised a new timber-framed kitchen ell.  The modified English frame is based closely on joinery found in the late-18th century house.  We based the size and location of the addition on evidence found in the house frame of an original, and now demolished, ell.  Like the house frame, the reproduction ell is constructed of White Oak and Eastern White Pine, in addition to Spruce, a species dictated by engineering requirements.  We worked with structural engineer Joe Fix, and architect Ben Nutter, as well as Howell Custom Builders, to build an historically accurate, traditionally-joined frame that met all Massachusetts building codes and regulations.  Click on the slideshow below for more information:

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