Drop-Front Limbert Desk
Skill Level: Intermediate
Time: 2 Days
When our youngest went off to kindergarten, my wife took on freelance copy-editing and needed a work station. An executive-size desk would not fit in our compact Chicago apartment, but this classic drop front, originally designed by Arts & Crafts master Charles Limbert, only needed a few minor changes to accommodate today’s small electronics.
Limbert’s original design is surprisingly compact. Measuring 10″ x 20″ x 51″, its interior does not even fit a 13″ laptop. Using a quick prototype, I scaled it up about 15% to 111/2″ x 241/2″ x 57″, keeping the worktop height the same to maintain the functionality of the original. Quartersawn white oak is really beautiful but expensive, and its irregular grain can present unique design challenges.
Borrowing from another Arts and Crafts master, Charles Rennie Mackintosh, I planned to dye and stain the desk an arresting black. I elected to use a 1/4″-thick piece of plywood for the back and a sleek leather pull for the drop front.
Mill all of your lumber to thickness and then glue up your pieces for the drop front. After the glue dries, square up the blank and cut exactly to width. Leave additional height for clamps so placing the curve is simple. Rip a 3/32″ thin piece of wood on the tablesaw, which, when bent will help draw the curve. Measure a centerline on the door and then 2″ off the bottom of the door.
Place clamps to rest the thin piece of wood, and bend the wood to the centerpoint. Draw a line, then cut curve using a jigsaw or bandsaw. I save the off cut to use as a custom sanding block for the curve. I leave the front slightly oversize so I can fit it precisely during assembly.
Next up, start work on the sides of the desk. The sides are the most complicated parts. While they are asymmetrical mirrors of each other, inevitably the parts will ideally face in or out, up or down, depending on the figure and location of knots, etc.
Every time I made a cut or process, I matched or faced the parts toward each other, so it would be very easy to cut two identical pieces versus mirrored pieces. It is important to remain methodical in working these parts.
The production of the sides requires two router jigs and some accurate measuring. One jig helps situate the square cutouts. I chose to cut it on a CNC router, however you could carefully make it by hand or find a vendor to cut this on a CNC or laser cutter.
With the square jig, I use a pattern bit after cutting out the bulk of the waste with a jigsaw. The other jig is for making the dadoes and stopped dadoes with a router.
Lay out the square cutouts, stack the sides on top of each other, and then bore out the corners with a drill. I set parts on a sacrificial board to minimize tear out, and I stay 1/8″ away from every corner.
Next, clamp the board overhanging your workbench and connect the drill holes with cuts using a jigsaw. The corners remain curved, so be careful to not cut into the them. Now clean out the rough holes using the template and a router with a top-bearing straight bit.
I made my template with 1/2″ MDF, but it could be made out of any stable material laying around your shop. Again, the part must overhang the workbench to avoid cutting anything below.
Limbert used relatively conventional units when laying out his hundreds of designs. In my adaptation of his desk, I tried to remain true to this logic.
Mark out the position of the dadoes in width and length. Remember to mark the angle for the desk dado, too. Once the jig is clamped on top of the side, you should be able to see your waste marks. If not, you will know you have aligned it to the wrong side of a line.
Making the Router Jig
Next, you will make the router jig. To assemble the jig, glue and screw together two right angle L’s. After the glue dries, take these two angled L’s and sandwich a scrap of your shelves in-between the two parts.
Press the parts against a side, and clamp everything together, keeping it all square. Then, screw and glue these in place.
Each dado is 3/8″ deep, which you can make in three 1/8″ deep passes with your router. Use a 1/2″-wide pattern bit with top-bearing and make clockwise passes to get to the 3/4″ shelf thickness. Before cutting the stopped dadoes, set the bit down close to the terminus of the dado and put a piece of painter’s tape on the jig as a reminder to not go too far.
After cutting all of the dadoes, square the ends of the stopped dadoes with chisel, including the angled one.
The back is inset into the sides, and you will need to cut a 3/8″-wide x 1/4″-deep rabbet for the 1/4″ plywood back. Use a 3/8″ rabbeting bit with your router for this. (The diameter of the rabbeting bit was larger than the factory baseplate on my router, so I made an auxiliary plate with a hole large enough for the bit.) Take numerous passes to avoid tearout on the way to the finished depth of 1/4″.
Lastly, draw the profile and radius on one of the sides to give the desk its distinctive shape. Follow diagram to the right to draw out the profile. For the radius at the top, draw a center point 2″ from the angled front line, and another 2″ from the top.
With a compass or trammel, draw a 2″ radius circle connecting the tangent points with this curve. Cut along the pencil line with a jigsaw, sand smooth and then use this as a template for the second side, which you can rout with a straight-pattern bit.
Gallery, Toe Kick and Shelves
There are five shelves of differing depths in this desk, as well as the gallery and toe kick. They should all be made from 3/4″-thick material. Cut all of the shelves to length at the same time so they are all the exact length.
The gallery and toe kick do not inset into dadoes. They butt against the sides, so they will be 3/4″ shorter than the shelves. After all of the cross members are cut to length, cut to width.
Cut the 6° angle on the front of the desk shelf. After all of the parts are cut to size, it is time to sand the parts. Sand with 100 and 150 using an orbital sander, and finish by hand-sanding with the grain using 150 wrapped around a cork block, and then chamfer the edges.
The gallery back and toe kick are attached to the sides with floating mortise-and-tenon joints (made with a Festool Domino joiner). Each only requires one mortise per side as there will be a long glue line where each piece also meets a shelf.
The gallery is flush with the back of the sides, but the toe kick is inset 1/4″. First mark and then cut Domino mortises in the ends of both the gallery back and toe kick, and then in the top of the side. Next, reset the fence for a 1/4″-deeper cut, and cut the Domino mortise in the front of the sides for the inset toe kick.
The desk shelf needs mortises for the hinges, so when the desk door opens at, the void between shelf and door would not be too prominent. I chose a conventional black door hinge with rounded edge from Hillman, available at most home stores. However, many different hinges would work.
Note that large door hinges often come with longer 1″+ screws, and this desk needs 5/8″ so the screw does not protrude through the shelf or door face. The hinges are completely hidden when the desk is closed, and the home center did not carry black screws in the size I needed, so I found some zinc (silver) screws the correct size and bought them for efficiency’s sake.
Align the hinges 1″ from the edge of the desk shelf. The mortises are stepped, to accommodate the pin barrel of the hinge. After marking the location, square to the angled face of the shelf, use a straight bit in a palm router to clean out the main flat surface of the mortise, and then lower the bit to remove material for the barrel.
Next, use a chisel to clean up the edges of the mortise. Fine tune to get the perfect fit.
Dry Fit and Glue-Up
Now it’s time for a dry fit before the glue-up! The scale, complexity and sheer number of parts that need to fit is a real challenge. There were 10 dadoes and 5 mortises, plus glue is added where the gallery and toe kick attach to the related shelf. Number all of the shelves and tune each one to fit its corresponding mortise.
Have a pal help apply glue (I used Titebond III due to its longer open time) and align all of the parts at once. The glued-up desk, with all of the hinges was extremely heavy.
Tip up the desk to make sure all of the shelves are seated to full depth. If not, grab a mallet and drive the shelves and clamp it tight. Lastly, check for square by measuring from corner to corner, and also with a square at all of the shelves.
Then take a deep breath! After an hour, chisel the rubbery glue in the corners, and then let the glue cure overnight.
It is easiest to finish the rest of the assembly before mounting the back and the drop front. To match our current furniture, this piece strays from the conventional Arts and Crafts colors of reds and browns and employs a more contemporary dark black.
The finish does, however, utilize a multiple-step finishing process to get a complex and rich tone on the wood. Dye sets a deep basecoat with very fine pigment, and the oil-based stain on top adds richness and depth. Lastly, I apply a protective polyurethane coat.
I started with a black dye stain from Trans Tint mixed into a suspension of denatured alcohol. The dye is extremely intense, and it is important to measure.
I tried two different mixes; one with 50 drops of pigment per 8 ounces of alcohol, and a second with 100 drops of pigment per 8 ounces of alcohol. I preferred the latter. Apply this dye with a 3″ foam brush.
Work quickly, washing the dye mixture on the wood, keeping a wet edge so the fine pigment cannot pool and make dark spots, and then follow with a wipe of cloth for a balanced application. Wait a couple of hours before staining.
I followed the dye with ebony gel stain from General Finishes. Use an inexpensive bristle brush to get the gel in all of the pores of the white oak and on the surface. Work in small sections; wipe the excess gel stain before it dries on the surface.
When finishing the shelves, do not slather the gel into the corners, rather work each plane at a time. Rub it off until it is completely dry, and almost burnish it with a clean cloth. Despite this process, the gel stain does not cure for 24 hours.
Then, spray a polyurethane top coat. The oil-based solvent in polyurethane is the same as the gel coat, and by spraying, you avoid the risk of dragging the pigment around with a bristle brush. My preference for smaller projects like this is Minwax semi-gloss polyurethane in an aerosol can. The fine mist dries fast and the nozzle sprays in a fan as opposed to a jet, which seems to lay down a smooth finish. Between coats, sand with 220 grit abrasive. I applied three coats.
Door, Handle and Clasp
Now that the whole cabinet is glued-up, and finished, be very careful with your almost-completed piece. Before mounting the hinges, however, make two shims for the hinges. Trace the hinge on a 1/16″ piece of scrap, and cut out the shape with a utility knife.
Flip the desk over and fit the hinges to the mortises. After ensuring the hinge is seated in its mortise, use a self-centering vix-bit to drive pilot holes. Next, fasten the hinge in place with aftermarket 5/8″-long #10 screws. Apply a length of double-stick tape to the hinge to hold the shim in place, which is essential for the next step.
Lift the desk onto a workbench on its side (a friend is a backsaver here!). From the front, set the door in its final position and gently shim the door so it is centered equally between the sides, and the same distance from the shelf at the top of the door. The door should be firmly wedged in place. From the back, fold the hinge with shim flat to the door.
With the vix-bit, predrill center holes for the screws. Again, utilize aftermarket screws to hold the door. After driving all of the screws to hold the door in place, carefully tip the desk upright and remove the shims.
The original desk had a combination lock/handle. I could not find any that I was wild about, and securing the contents of the desk was not imperative in our flat. I decided to go with a 8-9oz. leather strap, looped back on itself. The edges of the strap are unfinished after cutting to size and length, so I burnished the edges with 320 sand- paper and then carefully painted the edges with a satin latex paint.
I used a leather punch to make the holes. After trying out a number of variations, I opted for two, black, low-profile screws with a small hex drive. While not necessary, a pair of magnetic latches attached inside the desk hold the cabinet door in place.
The last step is to attach the back. Dry-fit the back to the assembled desk. Measure the location of the shelves and transfer to the back. Pre-drill and countersink the holes for attaching the back. Set the back in place and counterbore for the screws. Drive screws on all of the horizontal shelves to hold the back in place. Then set the desk upright and get to work!
Seth Keller is the director of Columbus Woodshop at School of the Art Institute of Chicago.
Christopher Schwarz has been finding and re-habbing handplanes for more than a decade. In Handplane Essentials, he shares his hard-learned knowledge to help you create a piece of working art for your own workbench. Follow Christopher’s step-by-step approach, and you’ll end up with a vintage (or new) tool that performs perfectly.