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A waterfall edge is really just a 45° miter, but a demanding one: both ends of each long board are beveled and the two ends are NOT parallel to each other, so the board comes out a long parallelogram instead of a rectangle. That's what lets the top, sides, and face frame all meet at the corner and read as one continuous surface wrapping around it, instead of a tabletop that just sits on a box.
Build the carcass first — top, two sides, bottom shelf, all joined at those mitered corners with glue and brad nails — then wrap it in a mitered 1x3 face frame front and back. The face frame is what actually holds the miters tight long-term; end-grain glue joints alone are weak, so the frame locks the whole thing in compression. Assemble the face frame as its own flat unit before nailing it to the carcass — square corners on a bench are much easier to get right than square corners fighting gravity and clamps on an assembled box.
Two center dividers split the lower half into two open bays, each with its own small mitered face frame. Keep the divider spacing exact — a 1x3's width, so the center trim sits flush when it goes on last.
| Item | Qty |
|---|---|
| Pine, 1x12, 10 ftTop, sides, bottom shelf, and dividers — pick straight boards with minimal cupping; a bow shows badly right at a mitered corner. | 3 each |
| Pine, 1x3, 10 ftFront and back face frames. | 4 each |
| Pine, 1x3, 6 ftCenter divider face frame. | 1 each |
| Pine, 1x2, 4 ftHidden interior blocking — scrap or furring strip is fine, it never shows. | 1 each |
| Brad nails, 1-1/4" | 1 box |
| Wood glue | 8 oz |
Overall cost: $$$. Lumber prices vary by region, species, and season, so we give a band rather than a figure we would only be pretending to know.
| Part | Qty | T × W × L |
|---|---|---|
| TopPine 1x12Both ends beveled 45°, ends not parallel — a long parallelogram, not a rectangle. This is the waterfall piece. | 1 | 3/4" × 11 1/4" × 84" |
| SidesPine 1x12One end beveled 45° to mate with the top's miter. | 2 | 3/4" × 11 1/4" × 30" |
| Bottom shelfPine 1x12 | 1 | 3/4" × 11 1/4" × 82 1/2" |
| Center dividersPine 1x12Two boards form each of the two vertical dividers. | 4 | 3/4" × 11 1/4" × 26 3/4" |
| Side blockingPine 1x2Hidden bracing on the insides of the side panels. | 4 | 3/4" × 1 1/2" × 11 1/4" |
| Face frame long railsPine 1x3Mitered 45° both ends, long point to long point, ends not parallel. Two for the front frame, two for the back. | 4 | 3/4" × 2 1/2" × 84" |
| Face frame short railsPine 1x3Mitered to match the long rails. | 4 | 3/4" × 2 1/2" × 30" |
| Center divider face framePine 1x3 | 2 | 3/4" × 2 1/2" × 25" |
Buy 11 boards at 8 ft.
4 boards
6 boards
1 board
Assumes 8 ft stock, a 1/8" saw kerf, and buying each part at its own width. Change the board size or kerf on the full board plan →
Attach the 1x2 blocking to the insides of the two side 1x12s with glue and 1-1/4" brad nails. This blocking gives the top and bottom shelf something solid to nail into right near the mitered corner, where you don't want to be relying on end grain alone.
Glue and nail the top to the side panels at the mitered corners. Dry-fit first — with a parallelogram-cut board it's easy to flip a piece end-for-end by mistake and end up with a corner that doesn't close. Clamp across the joint while the glue sets if you can.
Glue and nail the bottom shelf to the side panels the same way. Take diagonal measurements across the whole carcass and adjust before the glue sets — everything you build from here locks in whatever shape the box currently has.
Assemble the four front 1x3 rails into a frame on the bench first, mitered corners tight, outside edges flush all around. If you have a pocket-hole jig, use it here on the miters — it's the difference between a face frame that stays tight and one that opens up a hairline gap in a year. Then glue and nail the whole frame to the front of the carcass at once, flush to the outside edges.
Flip the project over. Fill in the open sides of the legs with a new 1x12 flush to the face frame, which is now on what's currently the bottom. Use a scrap piece of 1x3 as a spacer to hold the correct gap while you position the top-open side.
Attach the two center 1x12 divider boards. Check the gap between them with a scrap of 1x3 as you go — it needs to be exactly one 1x3 width so the center face frame trim sits flush against both faces when it goes on.
Build and attach the back face frame the same way as the front — assembled flat, mitered corners tight, then nailed on as one unit.
Glue and nail the short 1x3 trim pieces into the center divider gap, front and back. Go over the whole piece and nail off anything you missed while it was flat on the bench. Sand everything, fill nail holes, and finish.
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