Router table

JessEm Mast-R-Top: plate opening, lifts and fences

JessEm Mast-R-Top 03006 and 03007: its 9-1/4 x 11-3/4 x 3/8 in insert opening, the JessEm lifts it lists, INCRA's adapter note and edge-rail fences.

Also listed as JessEm Mast-R-Top, JessEm 03006, JessEm 03007

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Short answer

JessEm's Mast-R-Top is a 24 x 32 x 3/4 in laminated phenolic top cut for a 9-1/4 x 11-3/4 x 3/8 in insert, listed for JessEm lifts and insert plates. JessEm publishes no corner radius or plate-support detail. INCRA says JessEm tables lack a rabbeted ledge, so its lift needs INCRA's CleanSweep adapter.

Key facts

Plate opening or plate outline
Cut for a 9-1/4 x 11-3/4 x 3/8 in insert plate (JessEm).[1][2]9-1/4 x 11-3/4 in is 234.95 x 298.45 mm by arithmetic.
Plate thickness
3/8 in insert (JessEm).[1]
Corner radius
Not confirmedJessEm states no corner radius for the opening. INCRA's 0.750 in figure is for INCRA's own lift plate.
Plate support and leveling
INCRA says JessEm tables lack a rabbeted ledge, so the INCRA Mast-R-Lift II needs INCRA's CleanSweep Table Adapter.[3][4]JessEm's page does not describe how the plate is supported or retained.
Insert ring system
Not confirmedRings belong to the plate or lift in the opening, not the top.
Guide bushings
Not confirmed
Miter or accessory slot
Not confirmed
Fence fit and mounting
Woodpeckers says its SF-PRO Universal fence fits edge-rail tables such as JessEm, for slots 16-3/4 to 33-1/4 in apart.[5]
Dust ports and hose fit
Not confirmed
Routers the table maker lists
Not confirmedJessEm lists lifts and plates for the top, not routers; see each router page for JessEm's lift lists.
Lifts and plates whose makers name it
JessEm lists the Mast-R-Top for its router lifts and insert plates. JessEm's 03003 routing template is listed for the Rout-R-Plate, Rout-R-Lift 3.5XT and Mast-R-Lift II.[1][6]Fit with other brands' plates is not stated by JessEm.
Top size and material
24 x 32 x 3/4 in laminated phenolic; 03006 white, 03007 black (JessEm).[1]
Not confirmed
Not confirmedCorner radius; how the plate is supported; miter slot; dust ports; fit with other brands' plates.

Watch out for

  • JessEm gives no corner radius for the opening. Do not assume INCRA's 0.750 in radius applies.
  • INCRA says JessEm tables have no rabbeted ledge; an INCRA Mast-R-Lift II needs INCRA's CleanSweep Table Adapter.
  • JessEm lists the top for its own lifts and plates; another brand's plate is not confirmed.

What fits

Product details below are the seller's own description unless a source is shown. Pick the variant named for each item.

Questions

What size plate fits the JessEm Mast-R-Top?

JessEm says the top is cut for a 9-1/4 x 11-3/4 x 3/8 in insert plate and lists it for JessEm lifts and plates.[1]

Does an INCRA lift fit the Mast-R-Top?

INCRA says JessEm tables lack a rabbeted ledge, so its Mast-R-Lift II needs INCRA's CleanSweep Table Adapter.[3][4]

Which fence fits a JessEm edge-rail table?

Woodpeckers names JessEm edge-rail tables for its SF-PRO Universal fence, which fits slots 16-3/4 to 33-1/4 in apart.[5]

Sources

  1. JessEm Mast-R-Top Router Table Top - Premium Phenolic Router Table Top · JessEm Tool Company · Mast-R-Top 03006/03007: top size, insert opening, JessEm compatibility · checked 13 Oct 2026
  2. SI Units – Length · National Institute of Standards and Technology (NIST) · Definition of the inch as exactly 25.4 mm · checked 13 Oct 2026
  3. JESSEM/incra mast-r-lift-ii Router Lift · INCRA (Taylor Design Group) · INCRA version of the Mast-R-Lift II: plate size, thickness, corner radius, imperial and metric motor lists, table exclusions, CleanSweep adapter note, MagnaLOCK rings · checked 13 Oct 2026
  4. INCRA CleanSweep Adaptor · INCRA (Taylor Design Group) · Adaptor for tables without a rabbeted ledge: opening requirement, built-in levelers, leveling options · checked 13 Oct 2026
  5. SF-PRO Universal Router Table Fence · Woodpeckers · SFPRO-U-25 slot-spacing range, dial graduations, screw pitch, dust port and materials · checked 13 Oct 2026
  6. JessEm Router Table Insert Plate Template - MDF Routing Template · JessEm Tool Company · 03003 template: products it is listed for; no opening dimensions or radius stated · checked 13 Oct 2026

Next review due 12 Jan 2027.