HUMIDORS - PART ONE        


This is part 1 of a three part series by woodworker Norman Pirollo about "Designing and Building a Humidor".
Please visit this site http://www.fineboxes.com for more information on humidors, jewelry boxes, 
and a great woodworking course on CD that was designed and written by the folks at White Mountain Design.
 
With all the buzz recently surrounding cigars, it has almost become a necessity to store them correctly - 
especially if you intend to stock a few very good domestic or imported cigars. Cigars need to be stored at 
a humidity level of between 60 – 70 %. Anything above or below slowly deteriorates the tobacco leaves in 
which the cigar is wrapped. Storing cigars in a fridge or freezer is not a good idea, since the relative humidity
 in these spaces is virtually zero. The cigar humidor is both a decorative and functional box. These boxes 
can be designed to be beautiful conversation pieces and center pieces of a room, drawing attention to the 
exotic domestic and imported woods used. The humidor is basically a box within a box. The outer box, 
the main carcass, is typically of hardwood construction . The inner box, which is designed to be virtually 
sealed from the environment, is built of Spanish cedar. It is this compartment which holds the cigars and
imparts a natural aroma to the box.
Spanish cedar has been traditionally used as the liner, or inner box of a humidor, because of its properties, 
which include maintaining a constant humidity level. Spanish cedar is a natural absorber and releaser of 
moisture which is in the surrounding air, and performs this very well. It is important to store cigars in a tightly 
controlled environment with a fairly constant humidity level of between 60 – 72 percent. The temperature is
not quite as critical and has a wider range, but preferably should be at room temperature of 68 – 72 degrees.
When designing a humidor for yourself, you need to consider the amount of cigars which are to be stored at 
any given time, and the average length of these cigars. Humidors can be any size, with a hinged lid or a 
combination of hinged lid, trays, and drawers. The most common type of humidor is the standard box layout 
with a hinged lid. There are numerous steps involved in creating a box of this type. Precision joinery is a must, 
since the inner box must be almost sealed from the outside environment. It is always best to not pack or stuff 
a box with cigars, you should only fill the humidor to 75% of its capacity, this allows the cigars room to climate 
correctly. The capacity of the humidor should be taken into consideration when designing a humidor. 
Typical hardwoods which are often used for the carcase of the humidor are cherry, walnut, mahogany, oak, etc.
 The outer box or carcase can be either assembled from solid lumber or solid lumber with a veneered exterior. 
Using the veneer process allows you to use more exotic imported hardwoods, which are not commonly available 
in solid stock. I typically use solid stock in my construction, since domestic hardwoods are plentiful and are 
usually easier to work with. Of course, you can stain any wood you use to assume the look of a different, 
richer wood. Once you have established the size of box you need, the process of building the humidor is detailed 
as follows:


BOX SIZE: Capacity 40 cigars --------- Length 12 inches, Depth 10 inches, Height 5 inches
BOX SIZE: Capacity 70 cigars --------- Length 14 inches, Depth 11 inches, Height 6 inches

The depth is dependant on the length of your cigars, 10 inches translates to maximum cigar lengths of 8 inches. 
This is determined by subtracting 1 inch from both the front and back of the box. The ring size or size of the actual 
cigar, determines how many you can fit per row. It is best to allow 1 inch per cigar both in width and height.
The lumber requirements for a humidor of the typical sizes listed above very reasonable.
4 ft. of 6 inch wide by 3/4 inch thick hardwood for the exterior box, which translates to 2 board-feet, 
[ This lumber would comprise the outside 4 walls of the box ]
8 ft. of 6 inch wide by ¼ inch thick Spanish Cedar for the interior box , which translates to 1 board-feet
[ This lumber would comprise the inside liner box and the top and bottom of the inside box. The inside box 
is basically a 6 sided box of Spanish Cedar.]
The top and bottom of the outside box is typically ¼ inch stock. The bottom of the outside box is typically 
a ¼ inch piece of plywood which is inserted into a horizontal groove or dado in the sides of the box approximately 
¼ inch from the top edge. It is preferable to use a piece which has a hardwood veneer for the outside of the bottom. 
The bottom can also be rabetted and glued into the sides of the box, since the ¼ inch plywood sheet is dimensionally 
stable. The top of the box is also ¼ inch stock, either matching plywood to the sides of the box ,or a contrasting 
veneered plywood such as Bird's Eye Maple. I prefer to use solid stock for the top, which I resaw and plane down
to ¼ inch and then carefully book match and edge-glue. This allows me to use any hardwood which I have available, 
and the book-matching is a nice, added touch. The reason the top is inserted into a groove, is to allow it to expand 
and contract with the relative humidity of its environment. The top is not actually glued in, but floats in this groove 
or dado, which is routed into the four sides of the box. If you are using a sheet of ¼ inch plywood with a veneered 
or finished hardwood surface, then it is less important to take the wood movement of the top into consideration. 
Plane the sides with the long grain down a 1/16 of an inch on either side to allow for wood movement of a solid 
wood sheet. You can purchase the lumber milled down to size or do it yourself with a thickness planer.
It is also important to consider waste when calculating total requirements of lumber. 

                                               END OF PART ONE

Purchase quality hardware and parts for your new humidor at:

Rockler.com Humidor Components



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Last modified: January 13, 2006