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Watch strap grid

Keep matching strap halves and their labeled fitting packets together during a strap change. All files are free, including your customized plan.

Half-lap grid

Keep matching strap halves and their labeled fitting packets together during a strap change.

Broad grid cells give each strap pair a complete location, with room for a separate small packet containing its loose fittings.

For Someone changing watch straps at a desk. Default clear opening: 162 mm × 112 mm × 58 mm.

Adjust dimensions and stock ↓
Measure before you start
  • Measure the longer strap half with the buckle lying flat.
  • Lay both halves and their closed fitting packet side by side and measure the complete set.
Tools and access
  • A saw and guide for straight cuts
  • A square, measuring rule and caliper
  • A controlled-depth saw or router plus a chisel for the open-ended half-lap slots
  • Clamps and an offcut for a slot-fit trial
Using this organizer
  1. Return both halves of a removed strap to the same cell.
  2. Place its loose bars or fittings in a labeled closed packet in that cell.
  3. Lift the next complete set to a separate work surface before opening the packet.
What a useful result needs to do
  • The longest strap lies flat without bending around a divider.
  • A complete pair and its fittings can be identified together.
  • A buckle can be lifted without dragging the adjacent strap set out.
If the fit is wrong
  • If a buckle projects beyond the measured outline, unfold it into its storage position and remeasure.
  • If small fittings slip into joints, keep them in a closed packet; the grid is not a tiny-parts seal.
Ready to make. All 7 parts fit the listed stock.
Watch strap grid — thumbnail assemblyDimensions are in millimeters. Read the stated measurements; this drawing is not a full-size cutting template.Half-lap grid · Assembled view360 × 260 × 70 mm · thickness 12 mm

Your parts

PartCut lengthCut widthThicknessQtyGrain
360 mm70 mm12 mm2Along length
236 mm70 mm12 mm2Along length
336 mm236 mm12 mm1Unrestricted
335.7 mm58 mm12 mm1Along length
235.7 mm58 mm12 mm1Along length
Watch strap grid — dimensionsDimensions are in millimeters. Read the stated measurements; this drawing is not a full-size cutting template.Overall dimensions and clear openingsTop view · front edge at the bottomP1360 mm260Front section · halfway through depth (130 mm)F1F2GX1360 mm70Clear width 162 · depth 112 mmClear height 58 · plywood 12 mmRead each opening and part from the plan before cutting.

Item allowance: Each watch-strap pair lies flat with its buckle included in the footprint — 145 × 80 mm, plus 8 mm of handling space per axis.

A feasible cutting layout

Numbered cuts span their parent region. Coordinates use the sheet's top-left origin. Trim all four edges of each sheet you use first. Keep unused sheets whole. This layout does not claim the lowest possible material use.

Compare your stock choices

Try this same inventory with offcuts first and standard sheets first. Each result is a feasible estimate; the solver may miss a better layout.

Sheet S1.1

Feasible cutting layout S1.1S1.1 · 1200 × 600 × 12 mmC1C2C3C4C5C6C7C8C9C10C11C12F1F2P1336 × 236GX1L1L2GY1Hatched bands: 3 mm kerf · trim 5 mm on every edgeGrain arrows · small-part locations: @ x,y mm from sheet top-leftF1 · 360 × 70 mm @ 5,5F2 · 360 × 70 mm @ 368,5GX1 · 335.7 × 58 mm @ 731,5L1 · 236 × 70 mm @ 344,78L2 · 236 × 70 mm @ 583,78GY1 · 235.7 × 58 mm @ 822,78
Cut sequence
CutParent regionDirectionCoordinate (mm)First childSecond child
C1N1horizontal75N2N3
C2N2vertical365N4N5
C3N5vertical728N6N7
C4N3horizontal314N8N9
C5N8vertical341N10N11
C6N7horizontal63N12N13
C7N12vertical1066.7N14N15
C8N11horizontal148N16N17
C9N16vertical580N18N19
C10N19vertical819N20N21
C11N21horizontal136N22N23
C12N22vertical1057.7N24N25

Connections and machining

Half-lap grid · 7 pieces · 12 mm plywood. Two crossing sets of dividers have complementary open-edge notches. Seat the notches together before lowering the grid onto the base.
Watch strap grid — connectionsDimensions are in millimeters. Read the stated measurements; this drawing is not a full-size cutting template.Half-lap grid · connection detailsMatching top and bottom notches form the crossing joint.GX · opens from top12.3 wide × 29.15 highThrough 12 mm thicknessUncut bridge 28.85 mmGY · opens from bottom12.3 wide × 29.15 highThrough 12 mm thicknessUncut bridge 28.85 mmLower bottom-notched GY over top-notched GX. Align the stripbottoms, then lower the unglued grid onto the base.Joint reference spans · length × width (mm)F + L · 12 × 70F + P · 336 × 12L + P · 236 × 12GX + GY · 12 × 28.85GX + P · 335.7 × 12GY + P · 223.4 × 12
Watch strap grid — machiningDimensions are in millimeters. Read the stated measurements; this drawing is not a full-size cutting template.Grooves and notches · after cutting the blanksDimensions in mm · use the machining table for every coordinate.GX1 · Across-width grid stripM1x · length 335.7 mmy 58Origin (0, 0): bottom-left of the face shown.12.3 × 29.15 × 12 mm · slot length × width × depthFace: through · opening: top edgeGY1 · Front-to-back grid stripM2x · length 235.7 mmy 58Origin (0, 0): bottom-left of the face shown.12.3 × 29.15 × 12 mm · slot length × width × depthFace: through · opening: bottom edge

Coordinates start at the bottom-left of each face shown in the machining drawing. x follows the blank length; y follows its width. Depth runs through the sheet thickness.

Operation / piecesCut on facex / y (mm)Length × width (mm)Depth (mm)OpeningTool / sequence
M1 · GX1Half-lap notch · through161.7 / 28.8512.3 × 29.1512top edgejigsaw · 3 mm · 1
M2 · GY1Half-lap notch · through111.7 / 012.3 × 29.1512bottom edgejigsaw · 3 mm · 2

Put it together

Watch strap grid — exploded assemblyDimensions are in millimeters. Read the stated measurements; this drawing is not a full-size cutting template.Half-lap grid · Exploded assemblyF1F2L1L2P1GX1GY1360 × 260 × 70 mm · thickness 12 mmTwo crossing sets of dividers have complementary open-edgenotches. Seat the notches together before lowering the grid ontothe base.Part labels match the cutting list. Use numerical dimensions.

  1. 1. Measure and mark

    Measure 12 mm main plywood. Mark every part and its grain direction; recalculate before cutting if either thickness changes. Include the buckle and matching fitting packet when measuring each strap set.

    Parts: F, L, P, GX, GY · Start here

  2. 2. Cut and label the blanks

    Follow the rectangular cutting map and label every instance. Machine the separate notches or grooves only after the blanks are cut. Follow the tool manufacturer’s setup and workholding instructions.

    Parts: F, L, P, GX, GY · After measure

  3. 3. Cut the complementary notches

    On GX cut down from the top; on GY cut up from the bottom. Each notch is 12.3 mm wide and 29.15 mm high through the sheet. Preserve the opposite uncut bridge; square the notch corners and test scrap first.

    Parts: GX, GY · After cut

  4. 4. Dry-fit the case

    Check the 360 × 260 mm footprint, square corners and centered inset base. Base clearance is 0 mm per edge; confirm the selected adhesive can bridge that gap.

    Parts: F, L, P, GX, GY · After machine

  5. 5. Assemble the base and walls

    Bond the base and wall contact faces, keeping the base underside flush with the wall bottoms. Clamp square and follow the adhesive cure instructions.

    Parts: F, L, P · After dry-fit

  6. 6. Interlock the loose grid

    Outside the case, lower the bottom-notched GY strips over the top-notched GX strips. Align their top and bottom edges; keep the 0.3 mm clearance free of glue.

    Parts: GX, GY · After machine

  7. 7. Lower the grid into the tray

    Lower the assembled grid vertically onto the base. Verify every end gap and check that the grid lifts out without force.

    Parts: GX, GY, P · After glue, interlock

  8. 8. Cure, finish and check the fit

    Follow the adhesive cure instructions. Smooth edges, test the intended objects and apply a compatible finish without filling the clearances. Fit four felt pads. Use only for light desktop items; no load rating is provided. Keep loose watch fittings in closed labeled packets; smooth every edge that touches a strap.

    Parts: F, L, P, GX, GY · After seat-grid

Materials and supplies

  • Uses 1 standard sheet(s) and 0 existing offcut(s). Check your inventory before buying.
  • S1: 1 of 1 used · 1200 × 600 × 12 mm plywood (standard sheet).
  • Four self-adhesive felt pads.
  • Adhesive suitable for the selected plywood. Use the actual bond faces and the adhesive label; keep sliding and removable joints free of glue.
  • Compatible finish and abrasive. Keep joint clearances open after finishing.

Take the complete plan

Parts, stock, cutting sequence and machining CSVs, connection and assembly diagrams, a printable plan and editable JSON. No sign-up.

For PDF, open the print page and choose Save as PDF in your browser. Use A4 or Letter.

For light desktop storage. Geometry checked; physical assembly and durability untested. Follow your tool, sheet and adhesive instructions. Adhesive quantity and curing time depend on the product you use.

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