Adding Power to Your MiniMax Workshop

Electrical Power
Electrical Power
Photo by Pok Rie on Pexels.com

Unless you’re considering doing “unplugged” woodworking using only hand tools, you’re going to want some power in your shop. Even if it’s just for lighting, you need to consider how much power you’re going to need.

Let me stop right here and mention that I am not an electrician. I am comfortable installing breakers and running new circuits. However, I did consult with a licensed electrical contractor and the local code enforcement officials. You should do the same. They can tell you the requirements for cable size and type, breaker sizes, burial depth, and other important information. And certainly, if you feel uncomfortable installing wiring, receptacles, and circuit breakers, please–hire a professional. 

What I’m talking about below is the situation where you need to supply power to an outbuilding. If your MiniMax Workshop is in an attached garage or spare bedroom, simple talk to a licensed electrician about options for adding receptacles, if necessary.

Where electrical is required in an outbuilding, there are two solutions for supplying power. One solution is to branch off of the main breaker panel in the house and install a sub-panel in the workshop. This has the advantage of having only one higher-amperage breaker in the main panel to cut off power to the outbuilding when needed. Plus, you can install multiple circuits in the sub-panel inside the shop. This solution definitely requires the services and advice of your electrical contractor and code enforcement official to meet the necessary requirements for breaker sizes and quantity, cable size, and electrical grounding.

The second solution is to install separate breakers in the main breaker panel and run the appropriate sized cable to the workshop. This is the option I chose.

Main circuit breaker panel
Work with a licensed electrician to determine the size and quantity of breakers you need for your MiniMax Workshop.

For my MiniMax Workshop, I decided that I could get by with two 20-amp circuits. This would adequately supply the receptacles I wanted to install. Plus, I could branch off of one of those circuits for the lighting.

The problem was, my MiniMax Workshop shed is several feet away from the house. What would be the best method for running these two circuits to the shed? For my situation, the only workable solution was to run the cables underground that connected the breaker box in the house to the shed.

The first step was to apply for an electrical permit. This is required since I’m adding circuits to an existing panel. I had to specify that I was doing the work myself. In some areas, this is not allowed and a licensed electrical contractor must do the work or take responsibility for it.

The next thing you need to do is to call the utility service in your area to mark any underground cables and pipes. In my city, this is a requirement before starting any work that requires digging. The service I used painted the sod and placed flags to mark underground high-voltage wires.

Ground marked with paint and flags

With permit in hand, it was time to get to work.

To run wiring to an outside wall from the main panel, I had to fish cable up into the attic and over a laundry/utility room. The exterior walls of the house are masonry, so I opted to poke through the ceiling and run conduit down to a junction box that would connect to the outside. From there, I had to drill through concrete to connect to an exterior junction box. From the junction box to a narrow trench I dug, I used PVC conduit to protect the cable from weed trimmers and mowers.

PVC conduit connection
The box on the wall has a removable cover and connects to a junction box in the utility room inside the house. PVC conduit protects the cable that will be run to the MiniMax Workshop.

For my municipality, I had to dig a trench 18″ (45cm) deep between the house and the shed. The required depth where you live will likely be different.

When I reached the shop building, I again used conduit to run the cable up inside the wall. Then came the task of fishing the underground cable from the shed, along the trench, then up into the internal junction box in the laundry room. Inside, I completed the run using wiring rated for indoor use. Again, check with your code official and electrician for the proper cable to use outdoors and indoors.

Inspection tubes for buried electrical cable
Before covering the underground cable with soil, I installed temporary “view tubes” to allow the electrical inspector to verify the correct cable depth.

Before I covered the cable with soil, I installed “view tubes” or sections of pipe vertically in the trench that stuck above ground. These provided inspection ports for the electrical inspector to verify that the cable was buried at the proper depth. To prevent accidentally cutting into the cable in the future when digging, I also installed a yellow caution tape about 12″ (30cm) above the cable. This way, when a shovel hits the tape, it serves as a warning that there is a cable buried underneath.

Here’s where you may ask, “Why didn’t you run conduit the entire length of the trench?” Underground cable is very stiff and difficult to work with. I had enough trouble fishing it through the short lengths of conduit at the house and shed. The cable I used is rated for burial use without conduit, so it wasn’t an issue.

After this main cable was run, I connected it to the two new breakers in the main panel box. Then it was time to install receptacle boxes and wiring in the MiniMax Workshop. You can read more about that in another post.

Evaluating Your Potential Work Space – The Interior

MiniMax Workshop Exterior
The MiniMax Workshop

If your potential workspace for a woodworking shop is outdoors, you should have already evaluated the exterior of the workshop as I talked about here. Obviously, it has to be in a condition that protects the interior space. That’s what I want to address next. For me, this means taking a look at the inside of my 10′ x 16′ (3m x 5m) garden shed and deciding what changes I’ll need to make to turn the space into a usable workshop.

After the garden shed was (mostly) cleaned out, I spent a lot of time inside planning and daydreaming. This is the only space I have available to indulge my woodworking hobby, so the struggle is between practicality and the ultimate shop. Do I make do with what I have, doing the best I can with the shed as-is or do I take the time (and a little expense) to make the space more comfortable and enjoyable? You can probably guess that I decided to go with option number two. I figured if I’m going to be spending any amount of time out there, it might as well be a place where I can relax and be comfortable. After all, my past workshops also served as my “mental therapy.” I could go into “my space” and relax, be creative, or just sit and think.

As I mentioned before, my shed was built by Tuff Shed, so I didn’t have any questions about the quality of construction. They used traditional construction techniques with 2×4 studs spaced at 16″ center-to-center. A conventional roof system with plywood sheathing and asphalt shingles was more than adequate.

MiniMax Workshop Raw Interior
Any outdoor building should have adequate air flow to prevent moisture buildup that can lead to rotting of the wood framing and sheathing.

At the top of the gable end walls near the peak of the roof, a vent was cut into the wall. I can’t stress enough how important this is. I made the mistake once of building a shed without vents. It started to rot from the inside out in a matter of months. I had completely ignored the fact that there has to be adequate air exchange between the inside and outside of the structure. Moisture can build up on the inside surfaces of the ceiling and walls. If you’re building an enclosed structure outdoors or having one built for you, be sure to provide adequate ventilation for proper air flow between the interior and exterior.

Looking at the interior space, I had to make the decision whether or not to add insulation. I’m in the southeastern U.S. so heating is not as much as a concern as cooling. If you decide you’ll want to add heat or air conditioning (or both) to your shop space, it’s a good idea to add insulation.

But there’s another factor that pushed me in the direction of adding insulation: Noise. My shed is near the property lines of the neighbors. I wanted to minimize the noise impact when I’m using power tools, especially in the evening hours.

As you progress toward getting your workspace ready to move into, start giving some thought to the layout of your work area. What tools are you going to need and how will they be arranged? How much floor real estate will these tools require? What about worksurfaces like benches and worktables? I’ve already decided that I want to run a workbench along the end wall (10′ or 3m). That will provide plenty of workspace to get started as I figure out how and where the rest of my tools and accessories will be stored. All of this plays into where you will install electrical receptacles later on. And you need to account for door openings and windows in the placement of equipment in your shop.

Get a sketchpad with grid lines and start sketching up possible ideas for your shop layout. Or do what I did–use SketchUp to create a 3D layout of your shop. You’ll appreciate it later.

MiniMax Workshop SketchUp Layout
Using a 3D modeling program like SketchUp can help you visualize how best to lay out the equipment in your shop.

Evaluating Your Potential Work Space – The Exterior

In this previous post, I mentioned several questions you need to ask when evaluating the space you would like to convert to a workshop. The first is whether the space is suitable as-is. In other words, can you set up shop in the space without making a lot of changes? If your workspace is located outdoors, you’ll have consider the suitability of the structure, as I did.

Taking a look at the exterior of my 10′ x 16′ (3m x 5m) garden shed, there is certainly some potential here. The shed was made by Tuff Shed. The nameplate above the door had a serial number on it, so I contacted Tuff Shed to see what I could find out about my particular shed. It was obviously an older model (more on that in a bit). The local Tuff Shed representative couldn’t provide any details. I suspect it was a smaller, common model sold through The Home Depot instead of one of the custom models that Tuff Shed is known for.

As I walked around the outside of the shed for the first time, some problems became apparent immediately. The bottom edges of the exterior siding were rotting away. I believe the main culprit is the lawn sprinkler system. As I watched the spray patterns from the sprinkler heads, one of them was directly hitting the side of the shed through it’s pattern cycle. Who knows how many years this has been going on. So, I realized that at some point I’ll need to repair the T-111 plywood siding or replace it.

Here in our southern climate, outbuildings need to be secured with hurricane anchors. On my shed, there is an anchor at each corner solidly bolted through the framing of the wall.

The shed walls are securely fastened to a galvanized steel base. I can’t really see under the shed, but I’m guessing the base consists of an outer frame with interior steel joists running the length of the shed. That’s another plus—I don’t need to worry about the floor framing rotting away or sagging over time. Vent holes in the sides of the floor frame provide adequate ventilation under the shed’s floor to prevent moisture build-up.

The lock on the double doors was missing one of a pair of keys. The local Tuff Shed representative gave me a replacement key once I gave him the lock number. The lock and latch system is robust and should last a lot of years.

And speaking of locks on doors, Tuff Shed’s door construction beats that of any shed I’ve ever seen. The doors are rock-solid and straight. I took a closer look at how the doors were constructed and realized their secret: The doors are braced with square aluminum tubing faced with 1/2″ plywood. I won’t need to be concerned about warping and twisting.

Overall, other than the rotting issue with the siding, I’m impressed with the construction of the shed.

Now it’s onto the inside of the shed to evaluate its condition for my new workshop.

Important Things to Consider for Your Small Workspace

After realizing that I was moving away from my workshop in a two-car garage to a place without any workspace, I seriously considered selling all of my tools and finding another hobby besides woodworking — like reading. The opportunity to use a 10′ x 16′ (3 x 6m) garden shed as a workspace seemed impossible, yet intriguing. As least it was enough to make me think twice about getting out of woodworking altogether. (You can read more about this by clicking here.)

Continue reading “Important Things to Consider for Your Small Workspace”

Starting on Your Journey to Make Great Projects from Small Workspaces

Hi, I’m Randy Maxey and you may recognize me from the early days of the woodworking show “Woodsmith Shop” that airs on PBS in the USA. For ten years, I was one of the editors for Woodsmith and ShopNotes magazines. I’ve also taught dozens of woodworking seminars. I’ve been a lifetime woodworker.

In many years of showcasing woodworking projects you can create at home and answering your questions from the shows, magazines, and seminars, one comment I hear is, “Randy, these projects are fantastic – I want to build great woodworking projects too, but I only have an old garden shed or one stall of our garage to work in.  How can I accomplish projects like these in so little space?”

That’s a problem I’ve had myself, and I can tell you from my experience there are solutions to this age-old dilemma.

To help all of you out there at home, I’ve put together my tricks and know-how for creating “maximum results from minimum spaces” into a solution package — and I’ve called it MiniMax Workshop. This is a collection of ideas, plans, and clever solutions to wring the max out of your home workspaces no matter the size.

We’re on a journey. You and I. My goal is to prove that you don’t have to have thousands of dollars worth of tools and a workshop the size of an airplane hangar to do great woodworking. All it takes is a little creativity. And sometimes hard work. And a lot of patience.

Welcome to your MiniMax Workshop. I want to help you build great woodworking projects in your space — however big or small that workspace is.

Follow along with me as I endeavor to convert a 10′ x 16′ shed into a viable, creative space for woodworking. Without spending a fortune. One day at a time.

Your workspace might be one corner of a garage. Or a carport. Or a closet. It doesn’t matter. All that matters is you having the desire to convert that space into a workshop. It can be done. You can do it.  

Your job right now is to start sketching out ideas for your MiniMax Workshop space. And hopefully, you’ll learn a few things right along with me as we face the challenges ahead. All while having fun! I’m here to help YOU!

If you want to learn more about how MiniMax Workshop came to be, read this page for a little history.