What's inside
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A wooden Advent calendar with 24 small sliding drawers is one of those projects that looks simple until you make 24 of the same thing. The case is just a box with dividers, but the drawers have to slide cleanly every day in December without sticking, racking, or falling apart when a kid yanks one open. Done right, it lasts for decades and gets reused every year. This build is intermediate level – not because any single cut is hard, but because repeatability and tolerance matter across all 24 drawers.
Contents
Dimensions and Cut List
For a wall-hanging calendar that fits standard candy and small trinkets, aim for an overall case size of about 16″ wide x 18″ tall x 3-1/4″ deep. That gives you a 4-wide by 6-tall grid with drawers that are roughly 3″ wide x 2-1/2″ tall x 3″ deep (outside dimensions). Inside, you get about 2-1/2″ x 2″ x 2-3/4″ of usable space – enough for a chocolate, a Lego minifigure, or a folded note.
Cut list for 3/4″ stock case and 1/4″ drawer material:
Case: 2 sides at 18″ x 3-1/4″, top/bottom at 16″ x 3-1/4″, back panel at 16″ x 18″ from 1/4″ plywood. Internal grid: 3 vertical dividers at 16-1/2″ x 3″ and 5 horizontal dividers at 14-1/2″ x 3″. You will cut these from 1/4″ plywood or 1/4″ solid wood to save weight. Drawers: 24 fronts at 3-5/8″ x 3″, 48 sides at 3″ x 2-1/4″, 24 backs at 3-1/8″ x 2-1/4″, and 24 bottoms at 3-1/8″ x 2-7/8″ from 1/8″ plywood. Cut one test drawer first and adjust before batching the other 23.
Choosing Wood and Plywood
Stability beats appearance here. Solid wood moves with seasonal humidity and will bind drawers if the fit is too tight. That is the number one failure mode for this project: drawers that slid perfectly in your dry shop in October stick solid in a humid living room in December.
Best compromise is a hardwood case with plywood dividers and drawer parts. The case can be maple, cherry, or poplar. Drawer boxes should be 1/4″ Baltic birch plywood. It stays flat, has no seasonal expansion across the grain, and tolerates the small tolerances you need.
| Material | Pros | Cons | Best For |
|---|---|---|---|
| Solid Maple / Cherry (3/4″ for case) | Strong, takes finish well, looks heirloom | More expensive, heavier, requires milling | The outer case and drawer fronts if you want a premium look |
| Poplar + Paint | Cheap, stable for paint, easy to work | Needs paint or it looks blotchy with stain | Budget build or painted holiday design |
| 1/4″ Baltic Birch Plywood | Very stable, no movement, cheap per drawer | Exposed edges need edge-banding or careful sanding | Dividers, drawer sides, backs, and bottoms |
| 1/4″ MDF | Cheapest, perfectly flat | Swells if it gets damp, heavier, dulls blades faster | Only if you will seal and paint heavily; not ideal for drawers |
If you want a natural wood look on a budget, build the case from poplar and use 1/4″ birch plywood for the drawer fronts with a thin solid wood edge cap. It saves money and you still get real wood grain where it matters.
Tools You Actually Need
You do not need a full shop, but you do need repeatable crosscuts. A precision miter saw with a stop block or a table saw with a crosscut sled is non-negotiable for 24 identical drawers. Free-handing this many small parts guarantees variation and binding.
Other essentials: table saw or track saw for ripping dividers, brad nailer or pin nailer for the grid, wood glue, clamps, 1/8″ and 1/4″ chisels for cleaning dadoes, and 120 and 180 grit sandpaper. A small drum sander or a flat sanding block helps sneak up on drawer fit without overshooting. For cutting the 1/8″ drawer bottom grooves, a table saw with a standard blade (kerf ~1/8″) does the job – no dado stack required.
Building the Case and Grid
Start with the outer case as a simple butt-jointed or mitered box. If you have a router, cut a 1/4″ x 1/4″ rabbet on the back inside edge to inset the back panel – it keeps the case square and gives you a place to add a French cleat or sawtooth hanger later. Glue and pin-nail the case, check for square by measuring diagonals, and let it cure.
The internal grid is where most beginners struggle. Do not try to assemble all dividers at once. Cut 1/4″ dadoes in the top, bottom, and sides to locate the vertical dividers. Then cut matching notches (half-lap joints) where vertical and horizontal dividers intersect so they lock together like an egg crate. Aim for a snug slip-fit, not a press-fit. If you have to hammer dividers in, they will bow and pinch the drawers.
Dry-fit the entire grid inside the case before gluing. You should be able to slide a test drawer into any of the 24 openings with about 1/32″ clearance on each side and 1/16″ on top. If a drawer rubs, sand the divider, not the drawer – dividers are easier to replace. Glue only the perimeter of the grid to the case; leave the internal half-laps dry or with a tiny dot of glue so seasonal movement does not crack anything.
Making 24 Identical Sliding Drawers
Batch production is the only sane way. Cut all sides, then all fronts and backs, then all bottoms. Cut the 1/8″ groove for the bottom 1/4″ up from the bottom edge on all side and front pieces while the pieces are still long stock – it is safer and more consistent.
Assemble drawers with glue and 3/4″ brads or 23-gauge pins. The bottom panel floats in the groove without glue so it can expand slightly and also squares up the drawer. Check each drawer for square by measuring diagonals before the glue sets. A drawer that is even 1/32″ out of square will rack and jam.
Here is the critical tolerance: sand the outside of each drawer box until it slides under its own weight when you tilt the case. If it drops free, it is too loose and will fall out when wall-mounted. If you have to push, it is too tight and will stick after finishing. Wax the bottom edges and divider faces with paste wax after finishing – not before, or finish will not adhere. Avoid thick paint inside the grid or on drawer sides; even two coats of latex can add 0.015″ and ruin the fit.
For pulls, keep it simple. Small wooden knobs, leather loops, or drilled finger holes (7/8″ diameter) all work. If you use hardware, buy small wooden drawer knobs in bulk – buying 24 individually costs more than the wood. Drill drawer fronts before assembly to prevent blowout, and back them with scrap wood.
Finishing, Numbering and Hanging
Finish the case and drawer fronts separately before final assembly. Sand to 180 grit, break all sharp edges with a light chamfer, and apply your finish. A water-based polyurethane or shellac is ideal because it builds very little thickness and dries fast. Oil finishes are fine too but let them cure fully for 3-4 days or drawers will smell like linseed oil when opened.
For numbers, do not hand-paint unless you have a steady hand – uneven numbers make the whole piece look amateur. Use number stencils, a branding iron set, or laser-printed decals sealed with clear coat. Randomize the numbers instead of 1-24 in order; kids enjoy hunting for the next day.
Wall hanging needs to be secure. This calendar will weigh 12-15 lbs loaded. A French cleat made from 3/4″ plywood or a pair of heavy-duty keyhole hangers screwed into the case sides (not just the 1/4″ back) is the safe choice. Never rely on just the back panel to hold the weight.
Common Mistakes to Avoid
Three failures show up every year: drawers glued shut by squeeze-out, finish that glues drawers to dividers, and cases that warp off the wall. Wipe glue squeeze-out immediately with a damp rag inside the grid and inside drawers. Do not finish with drawers inserted – finish them separately. And store the finished calendar flat until December; leaning it against a wall for weeks will twist a large case, especially in poplar.
If this is your first calendar, make the cheaper plywood version. You will learn the tolerances without wasting expensive hardwood, and with good sanding and a painted finish, most people cannot tell the difference on the wall.