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Modern Wall Shelf[4/4 · 4ft · 5-Pack]
One pack. One build. All 5 boards used. • Makes 2 shelf units
Black Walnut
Hard Maple
Cherry
White Oak (QS)
Red Oak
Ash
Hickory
Ambrosia Maple
Sapele*
Padauk*
Purpleheart*
*Exotic — not available for shipment to US customers.
A slim, two-tier wall shelf with clean lines for plants, books, records or small decor. Each unit is two 46" shelves held apart by three short uprights, screwed together with no glue-up and no special tools. One 4ft pack makes two units — hang them stacked, staggered, or in two different rooms.
Quick Build — for experienced woodworkers
| Part | Qty | From | S4S size | S2S size |
|---|---|---|---|---|
| Shelves | 4 | Boards 1–4 | 46" × 4" × ¾" | 46" × 3½" × ⅞" |
| Uprights | 6 | Board 5 | 7½" × 4" × ¾" | 7½" × 3½" × ⅞" |
Unit: 2 shelves + 3 uprights (ends set in 1", one centred).
Joint: 2 pre-drilled, countersunk #8 screws through each shelf into each upright end — 2" (S4S) or 2¼" (S2S). No glue on end grain.
Mounting: 2 steel L-brackets into studs under the bottom shelf, or 2 keyhole hangers.
Finished size: Each unit, S4S: 46" L × 4" D × 9" H · S2S: 46" × 3½" × 9¼". Clear height between shelves 7½".
Before You Start
Shopping List
- 1 lumber pack — 4/4 · 4ft (S4S or S2S)
- 24 × #8 flat-head screws: 2" (S4S) or 2¼" (S2S)
- 4 steel L-brackets, 3–4", with #10 × 2½" screws for the studs (or 4 keyhole hangers)
- Wood plugs (optional)
- Sandpaper 120 / 180 / 220
- Finish: wipe-on oil, hardwax oil or water-based poly
Tools
- Saw for crosscuts (mitre saw or circular saw with a speed square) — with a stop block
- Drill/driver, countersink bit, pilot bits
- Stud finder and 24" level
- Tape measure, combination square, pencil
- Random-orbit sander or sanding block
- S2S only: jointer, straight-line rip jig or hand plane
S4S or S2S? S4S boards arrive flat and square on all four sides — cut and build. S2S boards have rough edges you straighten first, and finish ⅞" thick instead of ¾". No jointer? Choose S4S.
Our sizing assumptions: ⅛" per saw cut · S4S boards 23½"/47½" long with ¼" to square an end, 4" wide, ¾" thick · S2S boards trimmed ½" each end and ¼" off each rough edge (3½" clean), ⅞" thick · sizes drawn for the narrowest board in the pack. Wider boards give you a bigger offcut or a wider part — never a shortage.
Step-by-Step
S4S Lumber Pack
Surfaced 4 sides — no jointing
- 1 Pick the faces. Boards 1–2 make shelf unit 1, boards 3–4 make unit 2, and board 5 gives all six uprights. Put the best face of each shelf up on the top shelf and down on the bottom shelf.
- 2 Cut the shelves. Square one end of boards 1–4 and crosscut each to 46".
- 3 Cut the uprights. Clamp a stop block at 7½" and crosscut board 5 into 6 uprights. Check each one for square — square ends keep the shelves parallel.
- 4 Sand before assembly. Sand every part 120 → 180 → 220. Inside corners are hard to reach once the unit is together.
- 5 Mark the shelves. On each shelf, mark upright positions 1" in from both ends and centred at 23". Draw the upright outline (¾" wide) so you can see where the screws go.
- 6 Drill the shelves. Drill 2 countersunk clearance holes inside each outline, about ¾" in from the front and back edges. Clamp a scrap underneath to stop tear-out.
- 7 Assemble the first unit. Stand the uprights on the bottom shelf. Pre-drill into each upright's end and drive #8 × 2" screws. Lay the top shelf on and repeat. Screws only — the uprights meet the shelves on end grain, which doesn't hold glue.
- 8 Check for square. Measure the diagonals before the last screws go tight. Repeat for the second unit.
- 9 Finish. Wipe-on oil or water-based poly, 2–3 coats. Plug the screw holes first if you want a clean look.
- 10 Hang it. Find the studs. Screw 2 steel L-brackets into studs, set the unit on them, level it and screw up into the bottom shelf. Or fit 2 keyhole hangers in the back edge of the top shelf, lined up with studs.
S2S Lumber Pack
Surfaced 2 sides — straighten edges first
- 1 Prep the boards. Trim ½" off each end to remove any end checks. Joint one edge straight, then rip the other edge parallel (¼" off each rough edge is our planning allowance). S2S boards finish ⅞" thick, so screws and some sizes change — use the sizes in this column.
- 2 Pick the faces. Boards 1–2 make shelf unit 1, boards 3–4 make unit 2, and board 5 gives all six uprights. Put the best face of each shelf up on the top shelf and down on the bottom shelf.
- 3 Cut the shelves. Square one end of boards 1–4 and crosscut each to 46".
- 4 Cut the uprights. Clamp a stop block at 7½" and crosscut board 5 into 6 uprights. Check each one for square — square ends keep the shelves parallel.
- 5 Sand before assembly. Sand every part 120 → 180 → 220. Inside corners are hard to reach once the unit is together.
- 6 Mark the shelves. On each shelf, mark upright positions 1" in from both ends and centred at 23". Draw the upright outline (⅞" wide) so you can see where the screws go.
- 7 Drill the shelves. Drill 2 countersunk clearance holes inside each outline, about ¾" in from the front and back edges. Clamp a scrap underneath to stop tear-out.
- 8 Assemble the first unit. Stand the uprights on the bottom shelf. Pre-drill into each upright's end and drive #8 × 2¼" screws. Lay the top shelf on and repeat. Screws only — the uprights meet the shelves on end grain, which doesn't hold glue.
- 9 Check for square. Measure the diagonals before the last screws go tight. Repeat for the second unit.
- 10 Finish. Wipe-on oil or water-based poly, 2–3 coats. Plug the screw holes first if you want a clean look.
- 11 Hang it. Find the studs. Screw 2 steel L-brackets into studs, set the unit on them, level it and screw up into the bottom shelf. Or fit 2 keyhole hangers in the back edge of the top shelf, lined up with studs.
Why no glue? Every joint here is a shelf face against the end grain of an upright. End grain soaks up glue and makes a weak joint, so the screws do all the work. The shelves and uprights both move across their 4" width in the same direction, so there is no wood-movement fight.
Why set the end uprights in 1"? The small overhang looks lighter than a flush box and hides any tiny difference in length between the two shelves.
Why pre-drill? Maple, oak and hickory split if you drive a screw without a pilot hole. Pre-drill every screw and countersink so the heads sit flush.
Make It Yours
- Hidden screws: counterbore ⅜" and glue in wood plugs, then flush-cut and sand.
- Contrast uprights: cut the uprights from a darker board — walnut uprights on maple shelves.
- Staggered pair: hang the two units offset by 10–12" for a modern look over a desk or sofa.
Safety and Care
- Wear eye and hearing protection. Use a push stick for every rip under 4" wide.
- Pre-drill every screw — hardwoods split without a pilot hole.
- Mount into wall studs (or rated anchors sized for the load). Check for wires and pipes before drilling.
- These are display shelves. Keep the load under about 15 lb per shelf.
Frequently Asked Questions
Not for S4S boards — they arrive flat and square on all four sides. S2S boards need their edges straightened: a jointer, a table saw with a straight-line jig, or a hand plane all work. No jointer? Choose the S4S pack.
About 15 lb per shelf when the brackets are screwed into studs — plants, paperbacks, records and decor. It's too shallow for heavy hardcovers or dishes.
Small L-brackets under the bottom shelf are visible from below. If you want nothing showing, use keyhole hangers routed into the back edge of the top shelf instead.
Yes. Cut the uprights longer — board 5 has room for six uprights up to 7⅝".
Planned offcuts only: about 1" off the end of boards 1–4 and about 1½" off board 5. All 5 boards go into the shelves.
Yes. A 2ft pack makes two 22" units — a good size for a bathroom or entry. Cut the shelves at 22" and four uprights at 5½" from board 5, and use 2 uprights per unit, set in 1" from the ends.
