End Matcher

Identity

Name: End matcher (also "end-matching machine"). End matching is the operation — profiling board end faces; the end matcher is a machine arranged to perform it.

Definition (review fix 3): an end-profiling machine that trims/squares and machines the end faces of boards so successive pieces join end-to-end, commonly with matched tongue-and-groove or interlocking profiles. Feed direction, the number and location of machining centers, and whether adjacent boards or opposite ends of one board are processed in one cycle vary by model. The defining output is accurate matched end geometry, not one feed layout.

Two documented architectures:

• Longitudinal feed-through (Cantek EM12, Rex Lumber's service machine). Rex: "The end matcher is a feed-through machine. The stock is fed in, face down, from one side and a head carriage runs across the end of the piece... As the tail end of the stock passes the head carriage, a second piece is fed into the machine... The cutter head not only cuts the tongue on the new piece, but it also cuts the groove on the first piece" [EM1]. Cantek describes dual counter-rotating cutterheads cutting tongue and groove together [EM12].
• Transverse conveyor with opposed machining centers (Doucet GPS-90/120). "a traverse bar conveyor with machining centers on opposite sides of that conveyor" with side-shift rollers aligning boards ahead of them; saw and groover stations work opposite ends [EM11].

Distinct from the moulder: "The end matcher is a machine that puts the tongue and groove on the ends of the flooring as opposed to the moulder which puts the tongue and groove on the long side" (MLS Machinery via WoodWeb, 2008) [EM2]. Manufacturer category pages (Northtech) list end matchers, moulders, shapers and tenoners separately — useful commercial taxonomy, not a permanent ontological boundary [EM15].

One-line: A production machine that squares and profiles board ends so flooring, paneling and siding pieces join end-to-end.

✦ How NOT to use it — the heaviest section

DANGEROUS (the holding finding — rebuilt per review fixes 5, 6, 7)

Hazards: amputation and laceration at cutterheads and saws; crushing and unexpected motion from pneumatic clamps, pushers and cutter carriages; in-running nip points at feed rolls and conveyors; entanglement of clothing, hair or jewelry; tool or chip ejection; kickback; wood dust (health and fire); noise.

Regulation (direct, review fix 5). OSHA 29 CFR 1910.213(n) covers "planing, molding, sticking, and matching machines": (1) metal guards over cutting heads and saws; (2) where an exhaust system is used, the guard and exhaust hood integrated; (3) feed rolls guarded against hand contact at in-running points [EM23]. Also relevant: 1910.213(a) and (b) (general construction and controls), (r) and (s) (inspection, tooling and maintenance), and 1910.212 (general machine guarding and point of operation) [EM23]. 1910.213(k) (tenoning machines — enclose feed chains and sprockets of double-end machines; guard the cutting head and saws with metal guards) applies only where the exact end matcher is properly classified as a covered tenoning machine. OSHA's woodworking guide (OSHA 3157) describes point-of-operation, in-running nip, flying-chip and kickback hazards for related automatic machinery; it supplements, not replaces, the direct rule and the manual [EM24].

Standards (review fix 6). ANSI O1.1-2013 (R2023), woodworking machinery safety requirements, at its published general scope (full text not read) [EM25]. ISO 19085-12:2024, tenoning-profiling machines — potentially applicable to covered end-profiling designs; applicability to a particular end matcher depends on its classification and the standard's scope [EM26]. Neither is itself an OSHA regulation. The machine's declaration/manual, the jurisdiction, the employer's assessment and the currently adopted standard decide.

Controls by operating state — from the Cantek EM12 Operations & Parts Manual as summarized in the review [EM12m] (review fix 7). The exact machine's manual and the employer's procedure control.

• Before production. Trained, authorized operators only. All guards and interlocks complete and functional. Correct, sharp, sound, properly fitted tooling of the right type; rotation and spindle speed verified. Extraction running. Electrical, pneumatic, stock, clamp, roller, sensor, guide and timing setup correct for the stock. Stock within the model's width, thickness, length and weight limits.
• Normal production. Enclosure closed; no interlock bypass. Hands, clothing, hair and jewelry clear of moving parts. Stay outside feed, clamp, pusher, cutter-carriage, outfeed, projection, kickback and in-running nip zones. Observe the machine regularly while it is powered; never leave it running unattended. Stop on any abnormal sound, feed, fit or clamp behaviour.
• Setup and first piece. Use only the documented manual/setup functions. Verify both sides of thickness and width adjustments and guides. Run and inspect a first piece before production.
• Jam clearing. Follow the manual's jam procedure; do not improvise sensor or timing changes; handle bowed stock and jammed material as the manual directs. Where access to hazard zones is needed, isolate as in 5.
• Tooling change and maintenance. Bring components to the documented service position, then have a qualified person isolate both electrical and pneumatic energy before touching cutters or entering hazardous areas. An emergency stop alone is not isolation — stored air can still move clamps and carriages. Handle sharp, heavy tooling safely.
• Cleaning and housekeeping. Effective wood-dust extraction; clean sensors, guards and fire-prone accumulations; keep floors slip-free.
• Health. Noise assessment and hearing protection; eye/face protection. PPE does not replace guarding or isolation.

Climb cutting is not an operator option. Where a model's saws or groovers climb-cut, that is an engineered, guarded relationship among cutter rotation, feed, clamping, backup support and enclosure — never permission to change feed direction or improvise a climb cut on another machine.

NOT-FOR

See Matching → not-for (economics vs mechanics; long-edge work; stock outside the model's envelope).

DAMAGING

• End-grain tear-out when tear-out control is missing or mis-set — Contributor P's "sacrificial" end on a sled workaround [EM3]; Rex's machine scores ahead of the cutterhead for exactly this reason [EM1].
• Out-of-square ends — Contributor S's account of poor field fit from underequipped producers [EM3] (one practitioner's account).
• Incorrect setup — wrong tooling, rotation, speed, clamp, sensor, width, thickness or timing settings damage work and machine [EM12m].

BEGINNER-TRAP

Assuming full-length edge T&G makes end precision unimportant — Contributor F's view ("how could the ends do anything but lay flat? ... a saw can do that") against Contributor S's "not close, but square" [EM3]. Attributed disagreement; the practical point is that end squareness and fit must meet the product's tolerance, which shows up at installation.

LINEAGE-MISUSE

• Treating a shaper, radial-arm saw or sled setup as automatically equivalent to a dedicated end matcher — or, the reverse, as automatically unfit. They can make related geometry; whether they hold squareness, fit, guarding and throughput is the question [EM3] (review fix 9).
• Confusing the end matcher with the moulder paired with it on the line — perpendicular faces, different machines (reasoned; the sibling Moulder entry flags the same confusion).
• Carrying one model's head arrangement, rotation or stock window onto another (review fixes 4, 11).

Correct use (brief — the workbench holds deep operation)

• Process order is line-specific (review fix 12). End matching normally follows establishment of the long-edge reference/profile and requires square, defect-managed ends. Squaring and defecting may happen upstream (Rex: material is "run through one of our moulders, the ends are trimmed square, and the material is possibly defected") or in an integrated trim/end-matching line (Cantek defect saw; Doucet defect-removal/positioning options) [EM1][EM11][EM12].
• Profile match. The end profile is set to match the edge profile of the same run (Rex's "Standard T&G Butt Joint with Back Out and Relief") [EM1].
• Stock envelope (review fix 11). Stock must be within the exact model's permitted width, thickness, length, weight, profile and material limits. Examples vary: Rex's service accepts pieces "12\" and longer that are a minimum of 3/4\" (1/2\" face) up to 10-1/4\" wide" [EM1]; Cantek EM12's web page gives 0.4"–1.38" thickness and 1.6"–12" width [EM12].
• Tear-out control is whatever the model's designer built in — scoring, trim saws, backup blocks, cutter rotation, multi-spindle sequence — set up per the manual.

✦ Matching — the workbench's first read

does

Squares and profiles the end faces of boards (tongue-and-groove, micro-bevel, relief, click) so they join end-to-end, as distinct from a moulder's long-edge profiling.

suits

Hardwood and engineered flooring production; T&G wall/ceiling paneling; log-home and log-cabin siding (Log Home Shoppe describes end-matched pine/cedar siding locking on all four sides and staggered joint placement) [EM19]; truck/trailer flooring (HASKO MPEM-TF) [EM14]. Installation claims are the product's, not the machine's: joint placement follows the product's installation instructions, the supporting assembly and code (review fix 17).

match fields (the reviewer's schema notes)

End profile · board material · finished/reference face · width/thickness/length/weight range · required squareness and fit · trim/defect-removal needs · feed architecture · number/type of spindles · trim/scoring/backup system · feed direction · clamping · tooling material · enclosure/interlocks · dust/air/electrical requirements · automation interfaces · batch size · setup frequency · throughput · line integration. Separate "can make the geometry" from "can hold production squareness and fit at the required throughput."

kit-fit

Pairs with: a moulder or side-matcher upstream; defect scanning/optimizing saws on production lines; dust extraction; compressed air for pneumatic clamping [EM12][EM22].

Adjacent alternatives — each conditional (review fixes 8, 9):

• Matched router-bit sets on a router table (Infinity Tools 61-504 V-T&G, 61-509 T&G flooring, 61-511 flooring with nail slot; ½" shank; $149.90/set at Run 388) [EM18]. Can be a small-batch alternative when used in a compatible, guarded router-table setup exactly as the router and bit manufacturers direct. They remain exposed-cutter operations requiring secure end-grain support and workholding; not beginner-accessible by default. Safe use depends on the exact table and router, bit speed and shank capacity, guard, fence, hold-downs/featherboards, workpiece support and orientation, feed direction, stock dimensions, cut sequence and training.
• Shaper with sliding table / sled — viable for some batches if it meets squareness, profile, fit, guarding and throughput requirements (Contributor B's ~1 h per 300 bd ft; Contributor P's tear-out) [EM3].
• Single- or double-end tenoner — can make the profile for pre-cut-to-length stock, "however the accuracy could create some problems" (MLS via WoodWeb) [EM2].
• Radial-arm saw — squares ends but does not make the matched profile on its own, and carries its own hazards [EM3].

What a dedicated machine integrates — squaring, profiling, tear-out control, workholding and production feed — is the difference; alternatives do not automatically reproduce it.

not-for

• Economics, not mechanics (review fix 13). Dedicated end matchers are production equipment whose purchase, setup, utilities, extraction, floor space and training are rarely justified for one-offs. For a machine already installed and set, a small batch may be mechanically valid if the exact model accepts the stock and the operation is authorized.
• Long-edge T&G — the moulder's job.
• Stock outside the exact model's envelope.

access

Production equipment for trained, authorized operators under the manufacturer's manual and the employer's procedures (see Dangerous). The router-table path is a separate exposed-cutter operation with its own training and setup demands — not an entry-level shortcut.

revival

Bounded (review fix 16): this run did not locate a hobby-market dedicated machine or a restoration community for end matchers in the searched sources. Demand for the end-matched product is active at small scale — regional mills sell end-matched siding and flooring to builders and DIYers (Log Home Shoppe, The Tongue and Groove Store, Marks Lumber, Sustainable Lumber Co.) [EM19][EM20][EM21] — served by buying from mills with the machine or by the alternatives above.

Certification (review fix 10). MFMA's Random Length Grading Specifications state that all MFMA-RL flooring shall be end-matched unless otherwise specified [EM9]. The former supplier-quoted "All NOFMA-certified flooring is required to have an endmatch" is withdrawn pending the current NOFMA/NWFA rule itself.

Anatomy (components are distinct; do not merge them — review fix 4)

• Scoring blade — Rex's machine: scoring ahead of the cutterhead to minimize end-grain tear-out [EM1].
• Trim saws and top/bottom groovers; horizontal groover — Doucet GPS: "The trim saws and the top and bottom groovers are 'climb cutting' tools rotating in the same direction as the direction of feed, thus avoiding chip out on the back side of the floor boards"; its horizontal groover rotates against the feed [EM11].
• Counter-rotating dual cutterheads — Cantek EM12, cutting tongue and groove together; insert-style segmented heads adjustable for tongue/groove thickness and with or without a micro-bevel [EM12].
• Anti-tear-out (backup) blocks — Cantek EM12 [EM12].
• These are model-specific head arrangements. Cutter rotation, feed direction, speed and sequence are manufacturer-designed and guarded; they are not operator techniques and must not be generalized into an improvised climb-cut setup.
• Pneumatic top-and-side clamping — Cantek ("pneumatic side pressure system ensures the material is held square against the fence"; simultaneous top and side clamping); Laguna EM-300 ("Clamps On Top And Side") [EM12][EM13].
• Infeed/outfeed conveyors and tables — powered infeed and an outfeed table on the Cantek.
• Traverse bar conveyor with side-shift rollers — Doucet [EM11].
• Adjustment and control — Doucet SPFM: "Fully enclosed machining centers, all adjustments made easy by dial indicators"; Cantek: PLC touchscreen tracking linear feet and piece count [EM11][EM12]. (See Dial Indicator.)
• Enclosure, interlocks, sensors, extraction outlet, compressed-air supply — per the exact model [EM12m].
• Historical mechanism — US 1,091,773 describes a spring-loaded trigger/latch sensing a board entering the guideway and timing the feed stroke, and pivoting jaws that clamp and withdraw the finished piece [EM4]; US 577,076 an improved holding device on a reciprocating double-machine architecture [EM4a].

Profiles: traditional solid-wood T&G; micro-bevel; relief/back-out; engineered click/snap (HASKO LP models, Doucet seven-spindle) [EM11][EM14].

Variations (living) — dated examples

Specifications and prices are dated examples, not class limits (review fixes 11, 14, 18).

• Cantek EM12 — web page (the review, 2026-08-05): dual 10 hp heads, 1.6"–12" width, 0.4"–1.38" thickness, 12" minimum length, 173" standard infeed table [EM12]. The EM10/EM12 manual gives different power, capacity and table values and states specifications may change without notice [EM12m] — verify the quoted machine, serial-specific manual revision, options, tooling, electrical supply, compressed air, extraction and board weight. Cantek can integrate an automatic defect cut-off saw.
• Laguna EM-300 — 1½"–12" width, ¼"–1" thickness, 2×10 hp; $49,999 + $999 freight, manufacturer-listed at Run 388 [EM13].
• Doucet GPS-90/120 — transverse architecture, five-/seven-spindle, 90–120 fpm; defect-removal and automatic-positioning options. Doucet SPFM — 20 hp, up to 80 fpm, 20,000–30,000 board feet/shift (manufacturer claim) [EM11].
• HASKO MPEM — MPEM-C (standard), PF MPEM-C Open, PF MPEM-C LP (locking profile), MPEM-TF (truck flooring), PF MPEM-RW (rework) [EM14].
• Northtech NT-EM250/300 [EM15].
• Integrated lines — a used Homag side-matcher → cross-cut → end-matcher line quoted by its seller at $599,000 new-replacement value [EM17].

Dated commercial listings (review fixes 14, 15) — seller asking prices at Run 388 (2026-07-29), USD, US dealers, configuration/tooling/freight not normalized: Northtech NT-EM250 $50,000 and Cantek EM12 $48,900 (Centex Automation, new) [EM16]; 2004 OSI end matcher, rebuilt, $115,000 (Machinio, used) [EM17]; Schroeder end-match/trim saw $17,900 and Homag cross-cut saw $9,900 (partial-line components) [EM17]. The 2010 forum "$50,000" is a practitioner's estimate [EM3]. No price trend is inferred from these unmatched figures.

Bounded search result (review fix 16): this run found current dedicated machines marketed mainly to industrial flooring and paneling producers and did not locate a current hobby-market dedicated end matcher or a moulder add-on in the searched sources.

Trades

Flooring manufacturing; paneling; log-home and log-cabin siding; truck-bed and trailer flooring; custom/restoration flooring at small scale, mostly via alternatives or purchased stock.

Lineage

Related process ideas, not documented descent (the reviewer's historical note). The end matcher combines the tongue-and-groove "matching" idea of long-edge moulders and side-matchers with end-working machine architecture related to tenoners. That is a functional synthesis; no source documents transfer from the Woodworth planer line or from tenoners. US 577,076 also documents an older reciprocating double-machine architecture, so the class is broader than the current products surveyed [EM4a].

Contemporaries. The moulder (long-edge T&G, commonly upstream on the same line); the double-end tenoner and the single-spindle shaper (conditional alternatives — see Matching).

Automation. Production lines pair end matchers with defect scanning and optimization: a documented mill line runs planer → optimizer → rip saw → defect grader → chop saw → six-head moulder → end matcher → packing (Plantz, FDMC, 2009) [EM22]. Marinus's POWERMAX is reported (search summary only — flagged) as a combined defect saw and end matcher. A PLC that counts pieces or positions a setup does not by itself make a distinct "CNC end matcher" class; record actual controlled axes and functions.

History

Primary patents.

• US 577,076, Willis S. Sherman, "Tongue-and-Groove Machine" — filed 6 April 1896, patented 16 February 1897. The specification calls the machine an "end-matcher," describes cutting a tongue on one end and a groove on the other end of flooring, and states the underlying machine was already in common use; Sherman claimed an improved holding device (review fix 1) [EM4a]. This is the earliest primary document located in this review. It documents an already-known class; it does not establish who invented it or when (review fix 2).
• US 1,091,773, Willis S. Sherman, "End-matcher" — filed 24 June 1912, granted 31 March 1914. A later continuous-feed improvement: "to provide a continuously operating end matching machine which will automatically feed the work past the cutter and which will not require the close attention of the operator" and "to improve upon details of construction of end matchers of this type" [EM4]. Its classification (B27F1/02, "Making tongues or grooves, of indefinite length") is classification context, not a plain-language description of an end operation.
• US 1,255,938, "Feeder for end-matchers" — title/existence only, not fetched.

Trade-history dates — kept open, not resolved by preference.

• 1895 — Maple Flooring Manufacturers Association timeline: "Maple end matching was introduced into the flooring industry" [EM8]. Association self-history with no inline archival citation; now plausibly supported by the 1896 filing, but still a secondary claim.
• 1898 — Kim Wahlgren, Wood Floor Business: "Thirteen years later, in 1898, the end matcher appeared" [EM7]. Secondary trade history; may refer to a different milestone or simply conflict.
• The two sources also disagree about what 1885 marks (side-matcher development vs "First Maple Lumbered").
• Inventor and exact priority remain unresolved.

Why it mattered — attributed (review fix 17). Wahlgren writes that until end matching, "all flooring ends of each piece had to be on joists, as subfloors were not commonly used" [EM7]. That is a historical flooring claim, attributed to its source. For current work: end-matched products can permit the end-joint placement allowed by the product's installation instructions and supporting assembly — follow the flooring or siding manufacturer, the code, and the project specification. The joint alone does not authorize unsupported placement.

Human side

Trades. Flooring mills; paneling; log-home and log-cabin siding producers; truck-bed and trailer flooring (HASKO's MPEM-TF line) [EM14]; custom/restoration flooring shops at small scale, mostly via alternatives.

Manufacturers (dated examples, current as of Run 388, 2026-07-29 unless noted). Doucet (GPS-90/GPS-120, five-spindle expandable to seven for engineered/click flooring; SPFM high-production) [EM11]; Cantek (EM12) [EM12]; Laguna (EM-300) [EM13]; HASKO (MPEM series; "Serving the Industrial Woodworking market since 1930") [EM14]; Northtech (NT-EM250/300) [EM15]; Yates-American (E-12 End Matcher System — search-confirmed, not primary-page-fetched) [EM10]. Newman Machine and Mattison Machine Works were searched by name without a connection to end matchers being found in the searched sources; Berlin Machine Works not checked.

Practitioner thread — WoodWeb "Machinery for End-Matching Flooring" (2010), practitioner evidence, attributed (review fix 9) [EM3]. A small-shop operator asks how to end-match without a "$50,000 end match machine."

• Contributor B: a sliding table on a shaper is "easy, but not fast... about 1hr or so to end match 300bdft of flooring including head changeover time."
• Contributor P: edges first, a dozen dry-clamped on a sled and power-fed; "The end was a sacrificial piece due to tearout."
• Contributor S (professional flooring maker): "Endmatching is not marketing. It's wood recovery... The ends have to be square — not close, but square. The only tool that will hold that square is the endmatcher. Shapers and radial arm saws are not endmatchers." He describes underequipped competitors with poor field fit whose businesses folded.
• Contributor R: "It's really not necessary to endmatch. It's more a marketing thing," per a friend who makes high-end flooring.
• Contributor F: a radial-arm saw can square the ends since the long edges carry full T&G.
• Contributor M: "a shaper is more than capable of producing square ends... in narrower widths not critical."

These are experiences and economic/accuracy judgments, conflicting among themselves — not a mechanical impossibility and not a certification rule.

✦ Proof of existence

• Primary patent (1896/97): US 577,076, Sherman, "Tongue-and-Groove Machine" — names the end-matcher and calls the base machine common [EM4a].
• Primary patent (1912/14): US 1,091,773, Sherman, "End-matcher" [EM4]; US 1,255,938 by title.
• Secondary institutional/trade histories: MFMA timeline (1895) [EM8]; Wahlgren, Wood Floor Business (1898) [EM7]; Weber, Murphy Oil Soap (general shape) [EM7b].
• Manufacturer pages — primary for current self-reported models and specs: Doucet, Cantek (page and manual), Laguna, HASKO, Northtech, Yates-American (E-12 search-confirmed) [EM10]–[EM15][EM12m].
• Dated commercial listings (asking prices only): Centex Automation, Machinio [EM16][EM17].
• Gaps: no museum/archival holding for an early machine located; no NIOSH FACE report located; DATAMP search returned nothing usable; inventor and exact introduction year unresolved.

References

Source types per review fix 15.

The reviewer's corrections (18)

• BLOCKER — 1. Add the 1897 Sherman patent and correct the “earliest primary” claim — Exact claim: “The earliest end-matcher-specific primary document independently verified this run is US Patent 1,091,773 ... filed June 24, 1912, granted March 31, 1914.”
• SHOULD-FIX — 2. Do not turn the 1897 patent into a new unique-origin claim — Exact claim: The history asks which of the 1895 and 1898 trade dates is the machine's “origin.”
• BLOCKER — 3. Replace the architecture-specific one-line definition — Exact claim: “An industrial throughfeed machine that ... cuts a tongue on one board's end and a groove on the next board's end simultaneously as both pass the same cutter station.”
• BLOCKER — 4. Separate scoring, trim-saw, cutterhead, and backup-block systems — Exact claim: “Because the scoring blade climb-cuts ahead of the main cutter ... skipping or under-powering that step ... is the single most load-bearing correct-use fact.”
• BLOCKER — 5. Correct the OSHA sourcing claim — Exact claim: “No safety-standard citation ... specific to end matchers was found,” so OSHA tenoning-machine guidance is “borrowed from an adjacent machine class.”
• SHOULD-FIX — 6. Add current standards without asserting universal applicability — Exact claim: “ANSI O1.1 ... addresses double-end tenoning machines' feed-chain guarding by title/scope,” with no current designation, while no end-matcher standard is identified.
• BLOCKER — 7. Rebuild safety from the Cantek EM12 manual — Exact claim: The safety section mainly borrows four tenoner hazards and guard provisions, with no model-specific operating-state controls.
• BLOCKER — 8. Remove “beginner-accessible” from the router-table substitute — Exact claim: “The router-table path ... is explicitly marketed to woodworkers and DIYers and is genuinely beginner-accessible with router-table experience.”
• SHOULD-FIX — 9. Treat shaper, router, and radial-saw claims as conditional practitioner evidence — Exact claim: The practitioner thread establishes dedicated end matchers as purpose-built and tenoners/shapers as “inferior substitutes,” while a professional's “only tool” statement is used in “cannot replace.”
• SHOULD-FIX — 10. Correct the certification claim — Exact claim: “All NOFMA-certified flooring is required to have an endmatch,” quoted through a supplier.
• BLOCKER — 11. Do not universalize one supplier's stock window — Exact claim: Rex Lumber's 12-inch minimum length, 3/4-inch minimum thickness and 10-1/4-inch maximum width are a “hard window” and “not a flexible limit, a physical one” for the machine class.
• SHOULD-FIX — 12. Make process order line-specific — Exact claim: “Boards are moulded/edge-profiled and trimmed square before end-matching, not after.”
• SHOULD-FIX — 13. Separate economic fit from mechanical “not-for” — Exact claim: “Not for genuinely one-off or hobbyist-scale work.”
• SHOULD-FIX — 14. Stop presenting nominal asking-price similarity as price stability — Exact claim: A 2010 forum user's “$50,000” figure and 2025/2026 dealer listings near $50,000 are “real price-stability evidence across independent sources fifteen years apart.”
• SHOULD-FIX — 15. Correct source-type labels — Exact claim: MFMA and a bylined trade-history article are labeled “trade-association-primary” and “trade-press-primary,” while dealer listings are “dealer-primary current market evidence (HIGH).”
• SHOULD-FIX — 16. Remove search-absence claims about ownership, products, and revival — Exact claim: “There is essentially no hobbyist ownership at all,” “No moulder-attachment or hobbyist add-on version was found anywhere,” and “The tool itself has no revival story.”
• SHOULD-FIX — 17. Qualify installation claims about joists, studs, and “floating” ends — Exact claim: End matching lets boards “float” between joists and allows siding joints without every end landing on a stud.
• MINOR — 18. Reconcile current specifications with the actual manual — Exact claim: The Cantek product page values are presented as one stable model specification without noting manual differences.