Before you start working on attaching your casters, you need to make sure that the casters are suitable for your needs. Better take some time to be safe than be sorry later, right? [Read Also: 4 Workbench Top Protector to Protect workbench Topper.]
a) The weight of the workbench
The most important part of choosing the casters is determining their weight-capacity. To understand which casters you will need, you first need to find out the workbench’s weight.
For that, first, determine the weight of the table itself. Then, add the weights of the accessories, tools, and pieces of equipment you are likely to place upon the table to the found-out weight.
And don’t forget to consider the weight of the usual materials necessary for your craftsmanship.
It is quite realistic that you won’t be able to measure the load down to the last pound. But its OK. Just make a very generous guess while estimating the weight.
After you are done with the calculation, divide it by the number of casters to be attached.
For example, if your calculated weight is 300 pounds and you are to attach four casters to the bench’s four legs, then the casters’ minimum weight capacity should be 300/4=75 pounds.
So, it is safe for that bench to use casters having a load capacity of more than 75 pounds.
But there are more factors to be considered. What if one side of the workbench weights more than the other side? You can’t go with your even number then.
In such situations, don’t divide the weight by four. Instead, divide it by two or three. Or to be safe, choose heavier-duty casters.
b) The mounting method of the caster
There are generally two types of mounting systems for casters. One uses stems while the other uses plates.
Choose the ones you find suitable for your needs.
c) The diameter of its wheel
The wheel’s diameter is also crucial for ease of movement, especially for worktables where there are likely to be debris and dirt on the ground.
The bigger the wheel’s diameter, the more comfortable for the caster to move around. So, skip the small wheels and use the ones having a diameter of at least 2 or 2.5 inches.
d) The wheel type
Casters usually have rubber, plastic, or metal wheels. The first two typed wheels are best for smooth, hard grounds or carpet-covered floors.
The metal ones are best for uneven surfaces like workshops.
Yet, it will be counterproductive if your workbench keeps moving while you are working. So, to prevent the issue from occurring, try to attach some rigid casters and easy-to-maneuver swivel casters.
Or, attach swivel casters with built-in double locks. When the double lock is in action, it will keep the caster completely immobile. Thus, you won’t need to buy two different types of casters.
The necessary pieces of equipment:
Aside from getting your ideal casters, you might need some equipment to attach them safely and correctly to your workbench legs.
Most of them should already be in your possession. Otherwise, you can quickly get them from nearby hardware stores.
How to Attach Plate Casters to Wood Table of 2×4 :
If you plan on using plate mount casters, you should consider the size of the bottom part of the leg. The dimensions and the shapes of the bottom part of the table legs differ when the table is 2×4 of 4×4.
While the sizes are somewhat standard, we suggest a measurement just in case.
After you finish your measurements, use a saw to cut plywood or hardwood pieces to a similar size.
Then mark the mounting holes in the pieces of woods.
After that, diagonally drill to the appropriate measures and attach the casters using the screws, bolts, and washers.
Lastly, use strong wood glue to join the wood-pieces attached to the casters with the table legs.
Attach Casters to End Grain :
Not only attaching casters directly to the end of the table leg is tricky, but we also strictly advise against it, mostly if the table legs belong to a workbench subjected to bumpy movements.
Why? Because when you attach a caster to end grain by drilling holes and the table gets subjected to regular rough movements, the strain put on the caster transforms to the screws.
Gradually, the drilled hole attaching the screw starts to get more expansive due to the grinding movements. In the end, a perfectly suitable workbench gets ruined due to the ruined legs.
But if you are still determined, then try to use plate mounted casters as they are best for spreading the load.
Just place the caster to mark the mounting holes at the end of the table legs, drill them, and use the nuts, bolts, and washers to attach the casters and be done.
Until now, we have discussed putting casters to wood workbench legs. But what is your workbench is not made of wood, but something different, say like metal? Then should you feel discouraged? Of course not!
Actually, if you have a solid idea of how to attach casters to metal workbench legs, you will notice that it is pretty simple.
a) To solid metal legs:
If the metal legs are made of solid metal, then follow the procedure given below:
First, measure the distance between the legs according to the width of the table.
Then cut two pieces of hardwood boards according to the measurement.
Attach two plate casters at two ends of the bottom of one wood-piece and do the same for the other one.
Then attach the pieces of the wood under the table legs with strong adhesives.
And here it comes! Your mobile metal workbench!
b) To hollow metal legs:
If your table legs are made of hollow metals, we fear that the casters suitable for woods will not work.
Try using grip ring casters or expandable stem casters. These casters’ stems expand inside the hollow tube and attach firmly at the inside of the tube.
Before buying the caster, measure the hollow part of the tube leg’s diameter and buy one proportional to that diameter.
Insert the caster inside the hollow leg and continue to compress it to a tight-fitting. Try to pull the caster out of the pipe. If you can’t, then you are done.
While a workbench with casters might seem like something prone to moving and thus unstable, the reality proves to be very different.
In fact, if you know how to attach casters to workbench legs properly, not only will your workbench not move needlessly, but also it’s capacity of movement will be extremely helpful! You should apply the same process for creating any type of furniture in the cabinet or workbench that is made of plywood or hardwood. To install casters on wood properly, you must have some tools, with the help of the right tools it’s easy to put casters on anything.
Hi, I am Rogers Weber, the man behind Solvesonic. I am a mechanical engineer. I use many kinds of tools almost every day at my workplace. I love to write about tools, home improvement, and DIYs. I enjoy helping people to solve their problems through my website.