PROCESS · ANTIQUE RESTORATION · 75 YEARS ON THE BENCH
What we look at first when a chair lands on the bench.
Every antique chair tells the same condition story in roughly the same order. When a Federal-period side chair, a Chippendale wing chair, or a Windsor sack-back arrives at the Colvin Street workshop, the assessment follows a sequence — frame first, joinery second, finish third, upholstery fourth, hardware fifth. The order matters. A wobbly back joint discovered after the seat is reupholstered is twice as expensive to fix. Here is how the bench-side assessment runs, what we are looking for in each part of the chair, and what each finding means for the restoration scope.
I. THE FRAME
Hardwood. Period-typical joinery. Look for splits and worm.
Frame first — turn the chair upside down on the bench and look at the underside. Hardwood (mahogany, walnut, cherry, maple, oak depending on period and origin) is the expected substrate; softwood frames are uncommon on quality period chairs. Look for splits along the grain (typical in Federal-period mahogany where the wood has dried and cracked at the seat-rail-to-leg joint), powder-post beetle exit holes (small round holes 1-2mm; if fresh sawdust is present the infestation is active and the chair needs treatment before any other work), and old repairs (modern screws driven into period joinery, plywood patches, glue-block additions that change the original geometry).
II. JOINERY
Mortise-and-tenon. Dovetail. Pegged construction.
Period-correct joinery is mortise-and-tenon at the seat rails, sometimes pegged through the joint for additional security, with dovetails at any drawer or storage element. Test each joint by hand — gentle pressure to confirm the joint is tight, or that it has separated. Loose joints are the most common finding. Modern repair using yellow PVA glue is reversible but inferior; period-correct repair uses hide glue which is what was originally in the joint, takes new glue cleanly, and remains reversible for future work. We document every loose joint and the appropriate repair before any other scope.
III. THE FINISH
Shellac. Wax. Sometimes oil. Read it under raking light.
Hold the chair under raking light (a flashlight beam parallel to the surface) and read the finish. Period chairs in original condition show shellac (French polish) — built up in many thin layers, applied with a rubber pad, characteristic deep luster, repairable with more shellac. Wax over shellac is also common; the wax dulls the surface to a softer sheen and protects the underlying polish. Oil finishes are less common on formal period pieces but appear on country and Arts-and-Crafts work. The question is always: is the current finish original or a later refinish? Original finish is preserved; later refinish in poor condition can be carefully reduced and rebuilt.
IV. PATINA VS DAMAGE
Patina stays. Damage gets addressed.
The most important distinction in antique chair restoration is between patina and damage. Patina is the accumulated surface character — slight color shift, micro-scratches, edge wear at the high-touch points (front of the seat rail, back of the crest rail, top of the arms), oxidation on brass hardware. Patina is part of the value of the piece and is preserved. Damage is structural failure or loss — split seat rail, lost veneer, scratched-through shellac with raw wood exposed, broken arm tenon. Damage is repaired. We never sand a period finish smooth; we never replace original hardware to make a chair 'look new.' The patina-vs-damage distinction is a discipline.
V. SEAT CONSTRUCTION
Hand-stitched. Horsehair. Eight-way hand-tied where present.
Open the seat (if upholstered) and document the original construction. Federal-period side chairs typically have a stuffed seat over a webbed base — jute webbing tacked to the inside of the seat-rail, horsehair stuffing under a hand-stitched edge roll, top cover of leather, hair cloth, or fine wool. Chippendale wing chairs and Camelback sofas typically have eight-way hand-tied jute springs over the webbing with horsehair stuffing on top. Sheraton-era pieces sometimes have curled hair (a less expensive substitute for horsehair) and may have early coil springs by the 1830s. Document everything before disassembling; the original construction is the restoration target.
VI. HARDWARE
Brass pulls. Iron nail-head. Original where possible.
Hardware on chairs is typically limited to brass nail-head trim on the upholstery and any brass corner-brackets or escutcheons. Document the pattern of the nail-head (spacing, size, placement around the seat rail) before any disassembly — the pattern goes back exactly as found. Original brass nail-head, even if oxidized or partially missing, is preserved where possible. Period-correct hand-forged iron nail-head is available for replacement on Federal and earlier pieces; stamped modern brass is incorrect for period chairs and we do not substitute it.
VII. RESTORATION SCOPE
Scope follows the findings. Documented before work begins.
After the five-part assessment, scope is documented on a written work order — every finding (frame split at right rear leg, joint failure at front-rail-to-left-front-leg, finish degradation on top of arms, missing brass nail-head at three points around the back seat-rail, broken horsehair stuffing on the seat) plus the appropriate response (epoxy or wood-graft repair at split, hide-glue rejoin at joint, French polish revival on arms, hand-forged brass nail-head replacement, fresh horsehair under hand-stitched edge roll). Lead time confirmed from scope; pricing locked. The chair leaves the bench in original condition, with original components preserved and only the failed elements addressed.
Frequently asked
How long does a full antique chair assessment take?
30-45 minutes on the bench for a single chair, longer for matched sets where set-consistency matters. The five-part sequence (frame, joinery, finish, upholstery, hardware) plus written work-order documentation. For pickup-and-bench engagements we typically run the assessment within 1-2 days of arrival and send the work order back to the client within the week.
Can patina be preserved through full restoration?
Yes — this is the entire discipline. We do not sand, chemical-strip, or refinish where the original surface is intact. Damage gets repaired (split rejoin, joint regluing, hand-stitched seat rebuild); patina gets preserved (original shellac, original brass with oxidation, edge wear at the high-touch points). The chair leaves the bench looking restored but not refinished.
What if the chair has been refinished already?
Common. Mid-20th-century refinishes are widespread — many original shellac surfaces were stripped and rebuilt with later finish in the 1950s-1970s. We can carefully reduce a poor later refinish and rebuild with period-correct French polish; we cannot recover the lost original surface, but we can return the piece to period-correct appearance.
How do you handle active powder-post beetle infestation?
Treatment before any other work. We isolate the piece, treat the affected wood with borate solution (or for heavy infestation, fumigation through a specialist), monitor for fresh exit holes for several weeks, and confirm dormancy before proceeding to restoration scope. Treatment adds 4-6 weeks to the timeline but is non-negotiable; active beetle in a workshop creates risk for every other piece on the bench.
Period-correct horsehair stuffing — still available?
Yes — we maintain a small stock of period-correct horsehair (cattle-tail and mane hair, washed, sterilized, curled) for hand-stitched seat rebuild on Federal, Chippendale, and Sheraton-era pieces. Modern curled-hair substitutes are also available where the budget or scope calls for it. Original horsehair recovered from a piece is washed and reused where possible; this is the most period-correct approach.
What does a typical antique chair restoration cost?
Per the antique chair restoration page, $400-1,200 per piece for the typical scope (frame stabilization, joinery rejoin, finish revival, hand-stitched seat rebuild, hardware preservation). Heavier scopes (split-rail wood graft, full French polish rebuild, fully reconstructed seat) run higher. Matched-set work has volume discounts. Quote locked after the five-part bench-side assessment.
