Workshop · WS-012
Low-profile field clipboard
Secure paper checklists on a rigid board without a permanently projecting clip.
Editorial construction draft. Original digital diagrams; no physical build or load certification. Read dimensions, fit and use limits before making changes. US customary dimensions control; metric values are references.
Before marking and cutting
- US inches; feet where appropriate. Metric values are rounded references. Written inch values control.
- 3/4 in means measured 0.750 in actual thickness wherever used. Recalculate mating lengths for other sheet thicknesses; do not substitute nominal stock blindly.
Use limits
- Not a weatherproof document case or electrical insulating board.
Materials and cuts
| Part | Qty | Size to cut | Material |
|---|---|---|---|
| A Writing board | 1 | 10 × 13 × 1/4 in 254 × 330.2 × 6.35 mm | Sanded birch plywood with sound, void-free receiving edges. Measured actual thickness 1/4 in. |
| B Elastic retention bands | 2 | 3/4 × 20 in 19.05 × 508 mm | 3/4 in woven elastic; cut length adjusted after measured fit. Cut blank before seams or fitting. |
Hardware and consumables
- 1 × Strong sewing thread. For two 1 in overlaps.
Tools
- Rule with fractional inches
- Pencil or appropriate material marker
- Reliable square
- Saw suited to the specified stock
- Clamps
- Abrasive and dust-removal brush
- Sewing needle or suitable sewing machine
- Scissors
- Pins; remove and count after sewing
Assembly
- Cut A 10 × 13 × 1/4 in from sound smooth plywood; this outline gives a margin around US Letter paper.
- Round all four corners to a 1/2 in radius and sand the edges so they cannot cut the elastic.
- Lay a US Letter sheet 8 1/2 × 11 in on A, centered at X = 3/4–9 1/4, Y = 1–12 in.
- Mark band centerlines across the width at Y = 1 and 12 in, keeping the central writing field clear.
- Measure the wrap around the board at one band position: nominal 20 1/2 in including two 1/4 in edges, before stretch.
- Cut two elastic strips initially 20 in long. Overlap each pair of ends by 1 in to form a 19 in loop; test before sewing.
- Fit the unsewn pinned loop around the board only while the board is on a bench; remove the pin before putting a hand near it. Shorten only if the measured elastic remains easy to slide.
- Sew each 1 in overlap with a box and two diagonals, using suitable strong thread. Remove every pin and inspect both seams.
- Slide bands to their marked positions and load a paper sheet. Check that it can be replaced without pulling apart an elastic seam.
- Write on a trial sheet with the board supported. Label the board for dry indoor/covered use and remove wet paper promptly.
Checks
- Paper is centered with 3/4 in side margins.
- Bands retain the sheet and slide without cracking the board or hurting fingers.
- Both overlap seams are complete, with no pin or needle remaining.
Cleaning and maintenance
- Remove paper before wiping.
- Replace stretched or frayed elastic; dry board promptly if damp.
Primary context
These sources inform the context and do not endorse the original construction design.